KR100858718B1 - Highly concentrated organic waste treatment method - Google Patents
Highly concentrated organic waste treatment method Download PDFInfo
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- KR100858718B1 KR100858718B1 KR1020080002430A KR20080002430A KR100858718B1 KR 100858718 B1 KR100858718 B1 KR 100858718B1 KR 1020080002430 A KR1020080002430 A KR 1020080002430A KR 20080002430 A KR20080002430 A KR 20080002430A KR 100858718 B1 KR100858718 B1 KR 100858718B1
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- 239000010815 organic waste Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000002156 mixing Methods 0.000 claims abstract description 123
- 239000000203 mixture Substances 0.000 claims abstract description 93
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 92
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000000843 powder Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000292 calcium oxide Substances 0.000 claims abstract description 45
- 238000001035 drying Methods 0.000 claims abstract description 41
- 239000010801 sewage sludge Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 27
- 235000013305 food Nutrition 0.000 claims abstract description 19
- 230000002378 acidificating effect Effects 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000002253 acid Substances 0.000 claims description 48
- 235000012255 calcium oxide Nutrition 0.000 claims description 42
- 239000000428 dust Substances 0.000 claims description 33
- 239000010802 sludge Substances 0.000 claims description 23
- 239000004568 cement Substances 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 238000003795 desorption Methods 0.000 claims description 16
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 12
- 239000001110 calcium chloride Substances 0.000 claims description 12
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 11
- 235000019645 odor Nutrition 0.000 claims description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000010871 livestock manure Substances 0.000 claims description 8
- 238000009628 steelmaking Methods 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- 238000004043 dyeing Methods 0.000 claims description 3
- 239000010794 food waste Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000011343 solid material Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 3
- 238000010298 pulverizing process Methods 0.000 abstract 2
- 230000002950 deficient Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 17
- 239000000126 substance Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000010169 landfilling Methods 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229910052900 illite Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Paleontology (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
본 발명은 고농도 유기성 폐기물 통합처리 방법에 관한 것으로, 그 목적은 매립 및 해양투기로 버려지는 하수슬러지를 고화제로 제조하여, 이를 다시 고농도 유기성 폐기물인 음식물 탈리액 및 축산분뇨를 처리하여, 매립장 복토재로 활용함으로써, 부족한 자원을 대체하고, 아울러 해양 투기에 의존한 슬러지를 2차적인 환경오염 없이 안전하게 처리하기 위함이다.The present invention relates to a method for the integrated treatment of high concentration organic waste, the purpose of which is to prepare sewage sludge that is discarded by landfill and ocean dumping as a solidifying agent, and to process the high concentration of organic waste food desorption solution and livestock manure, and to the landfill cover material This is to replace scarce resources and to safely treat sludges that depend on dumping at sea without secondary environmental pollution.
이를 위해 본 발명에 따른 고농도 유기성 폐기물 통합처리 방법에 의하면; 먼저 함수율 통상 75~85%의 하수슬러지(50)에 산성분말(10)과 생석회(20)를 일정비율로 1차 혼합하고, 산성분말(10)과 생석회(20)의 반응열에 의하여 하수슬러지(50)에 함유되어 있는 수분이 증발되며, 1차 혼합물에 압축 공기 또는 열풍을 불어 넣어 1차 건조하면, 1차 혼합물은 다량의 수분과 악취가 제거되어, 1차 양생을 거쳐, 함수율 15~30%의 1차 혼합물이 된다. According to the high concentration organic waste integrated treatment method according to the present invention for this purpose; First, the acid component powder 10 and quicklime 20 are firstly mixed with the sewage sludge 50 having a water content of 75% to 85% at a constant ratio, and the sewage sludge is formed by the heat of reaction of the acid component powder 10 and the quicklime 20. 50) The moisture contained in 50) is evaporated, and when the primary mixture is blown with compressed air or hot air and dried firstly, the primary mixture is removed with a large amount of moisture and odor, and is subjected to primary curing, and thus the moisture content is 15 to 30. It is a primary mixture of%.
1차 혼합물에 황산(30)과 제지분진(40)을 일정비율로 2차 혼합하면, 화학적 발열반응에 의해 1차 혼합물은 함수율 5~15%의 2차 혼합물이 되고, 2차 혼합물을 미분쇄하면, ph 1.5~ 3의 산성분말(10)이 되고, 분쇄된 산성분말(10)의 일부는 1차 혼합단계로 순환이 되고, 나머지 산성분말(10)을 생석회(20)와 함수율 85~90%의 고농도 유기성 폐기물인 음식물탈리액(60)에 일정비율로 3차 혼합하여, 3차 혼합물에 압축 공기 또는 열풍을 불어 넣어 2차 건조를 시키면, 3차 혼합물은 다량의 수분과 악취가 제거되어, 함수율 15~30%의 3차 혼합물이 되고, 3차 혼합물에 액상 고형제(70)를 일정비율로 혼합하여, 2차 양생시키면, 흙과 동일한 형태의 복토재가 되는 고농도 유기성 폐기물 통합처리 방법이다.When sulfuric acid (30) and papermaking dust (40) are secondly mixed with the primary mixture at a predetermined ratio, the primary mixture becomes a secondary mixture having a water content of 5 to 15% by chemical exothermic reaction, and the secondary mixture is pulverized. When the acid component powder 10 of ph 1.5 to 3 is pulverized, a part of the pulverized acid component powder 10 is circulated in the first mixing step, and the remaining acid component powder 10 is converted into quicklime 20 and water content 85 to 90 degrees. By mixing the food desorption liquid (60), which is a high concentration organic waste at 60% by a certain ratio, and blowing the compressed air or hot air into the tertiary mixture to dry the tertiary, the tertiary mixture is removed a large amount of moisture and odor, When the mixture is a tertiary mixture having a water content of 15 to 30% and the liquid solid agent 70 is mixed with the tertiary mixture at a predetermined ratio, and the second curing is performed, it is a high concentration organic waste integrated treatment method that becomes a cover material of the same form as soil.
선행기술로는 특허등록공보 제0256021호에서 하수오니 처리방법을 제시하고 있으며, 내용은 하수오니를 수증기 건조방식에 의해 수분함량 15-35%로 건조한 후 시멘트의 총 원료의 0.5-10% 범위에서 시멘트 제조용 원료들과 배합하는 방법을 설명하고 있으며, Prior art discloses a method for treating sewage sludge in Korean Patent Registration Publication No. 0256021. The content of the sewage sludge is dried in a water content of 15-35% by the steam drying method and then in the range of 0.5-10% of the total raw material of cement. It explains how to mix with raw materials for cement manufacturing,
특허등록공보 제 0337084호에서는 정, 하수오니 슬러지를 이용한 퇴비화 제조방법으로, 오니 및 슬러지와 분말로 된 산화칼슘을 1 : 0.1-10중량부율로 혼합하고, 0.1-0.25시간 동안 산화소석과정을 거치면서 150-400도로 간접 가열시켜 칼슘설파이트와 일나이트와 황토성분을 혼합하여 퇴비화하는 방법을 제시하고 있으며, Patent Registration No. 0337084 discloses a composting method using tablets and sewage sludge sludge.The sludge and sludge are mixed with powdered calcium oxide in a ratio of 0.1 to 10 parts by weight and subjected to a process of calcination for 0.1-0.25 hours. And indirect heating to 150-400 degrees to provide a method for composting by mixing calcium sulfite with illite and ocher.
특허등록공보 제0052163호에서 원정수 슬러지를 이용한 규회석 비료제조방법은 축산폐수처리용 다공질 흡착제의 제조방법으로, 원정수 슬러지 케이크에 소석회를 배합하여 규회석 비료를 제조하는 방법이 공지되어 있고, The method of manufacturing wollastonite fertilizer using raw water sludge in Patent Registration Publication No. 0005163 is a method of preparing a porous adsorbent for livestock wastewater treatment, and a method of preparing wollastonite fertilizer by blending slaked lime in a raw water sludge cake is known.
특허등록공보 제0128125호에서 석회석 슬러지를 이용한 분생석회의 제조방법 으로, 내용은 850-1050도의 온도에서 40-80분 동안 소성하는 슬러지를 이용한 분생석회 제조방법을 소개하고 있다.Patent Registration Publication No. 0228125 discloses a method for preparing powdered lime using limestone sludge, the contents of which are introduced to the method of manufacturing powdered lime using sludge calcined at a temperature of 850-1050 degrees for 40-80 minutes.
위와 같이 슬러지 자체를 퇴비, 비료 및 생석회로 제조하는 방법과 건자재로 제조방법이 선행기술의 대부분으로, 일반적으로 대부분의 슬러지는 저렴한 처리비용을 이유로 해양투기로 처리되거나, 육상매립으로 처리되고 있으나, 이러한 처리방법은 2차적인 환경오염을 발생하고. 대부분의 폐기물이 어떠한 형태로든 재활용이 가능하다는 점을 감안할 때 해양투기 및 매립 처리는 국가적으로 자원을 낭비하고 있다는 문제점이 제기된다.As described above, the method of manufacturing the sludge itself as compost, fertilizer and quicklime and the manufacturing method of construction materials are most of the prior art, and most of the sludge is generally treated by ocean dumping or landfill due to low processing costs. This treatment causes secondary environmental pollution. Given that most wastes can be recycled in any form, there is a problem that dumping at sea and landfilling wastes resources nationally.
본 발명은 이러한 문제점을 해결하기 위한 것으로; 본 발명의 목적은 매립 및 해양투기로 버려지는 수분이 다량 함유된 하수슬러지, 고농도 유기성 폐기물인 음식물탈리액, 축산분뇨를 열 건조가 아닌 화학적 반응에 의해 슬러지의 문제점인 함수율과, 유해물질을 안정화시켜, 하수슬러지를 산성분말로 재활용하고, 재활용한 산성분말로 고농도 유기성 폐기물인 음식물탈리액 및 축산분뇨를 처리하여, 매립장 복토재로 활용함으로써, 따라서 본 발명은 부족한 자원을 대체하고, 아울러 해양 투기에 의존한 슬러지를 2차적인 환경오염 없이 안전하게 처리하기 위함이다.The present invention is to solve this problem; The object of the present invention is to stabilize the water content and harmful substances of the sludge by chemical reactions of sewage sludge containing a large amount of water that is disposed of landfill and dumping, high concentration organic waste food waste, livestock manure by thermal reaction By recycling the sewage sludge with acid powder and treating the high concentration organic waste food waste and livestock manure with recycled acid powder, it is utilized as landfill material for landfill. Therefore, the present invention replaces scarce resources and relies on ocean dumping. This is to safely treat sludge without secondary environmental pollution.
이러한 목적을 달성하기 위한 본 발명은 구체적으로, The present invention for achieving this object is specifically,
고농도 유기성 폐기물 통합처리 방법에 있어서,In the high concentration organic waste integrated treatment method,
하수슬러지(50)와 산성분말(10)과 생석회(20)를 혼합하는 1차 혼합단계(S1)와; A primary mixing step (S1) of mixing the sewage sludge 50, the acid component powder 10, and the quicklime 20;
상기 1차 혼합단계(S1)의 혼합물에 수분과 악취를 제거하기 위한 1차 건조단계(S2)와; A first drying step (S2) for removing moisture and odors in the mixture of the first mixing step (S1);
상기 1차 건조단계(S2)의 건조물에 온도와 수분을 안정화시키기 위한 1차 양생단계(S3)와; A first curing step (S3) for stabilizing temperature and moisture in the dry matter of the first drying step (S2);
상기 1차 양생단계(S3)의 혼합물에 황산(30)과 제지분진(40)을 혼합하는 2차 혼합단계(S4)와; A second mixing step (S4) of mixing sulfuric acid (30) and papermaking dust (40) with the mixture of the first curing step (S3);
상기 2차 혼합단계(S4)의 혼합물의 온도와 수분을 안정화시키기 위한 2차 양생단계(S5)와; A secondary curing step (S5) for stabilizing the temperature and moisture of the mixture of the second mixing step (S4);
상기 2차 양생단계(S5)의 혼합물의 입자를 일정하게 분쇄하여 산성분말(10)을 제조하기 위한 분쇄단계(S6)와; Grinding step (S6) for producing an acid powder (10) by constantly grinding the particles of the mixture of the secondary curing step (S5);
분쇄단계(S6)를 거친 산성분말(10)의 일부가 1차 혼합단계(S1)에 재차 투입되어 순환 처리되고, 나머지 산성분말(10)이 3차 혼합단계(S7)에 투입되는 순환단계와;Part of the acid powder 10 that passed through the grinding step (S6) is added to the first mixing step (S1) and circulated again, the circulation step of the remaining acid powder (10) is added to the third mixing step (S7) and ;
고농도 유기성 폐기물인 음식물탈리액(60)과 산성분말(10)과 생석회(20)를 혼합하는 3차 혼합단계(S7)와; A third mixing step (S7) of mixing the food desorption liquid (60), the acid component powder (10), and the quicklime (20) which are high concentration organic wastes;
상기 3차 혼합단계(S7)의 혼합물에 수분과 악취를 제거하기 위한 2차 건조단계(S8)와; A second drying step (S8) for removing moisture and odors in the mixture of the third mixing step (S7);
상기 2차 건조단계(S8)의 건조물에 액상고형제(70)를 혼합하는 4차 혼합단계(S9)와; A fourth mixing step (S9) of mixing the liquid solid agent 70 with the dried material of the second drying step (S8);
상기 4차 혼합단계(S9)의 혼합물이 고형물로서의 강도를 갖게 하기 위한 2차 양생단계(S10)를 구비한 것을 특징으로 하며, Characterized in that the mixture of the fourth mixing step (S9) having a secondary curing step (S10) for giving strength as a solid,
상기 1차 혼합단계(S1)는 하수슬러지(50)와 산성분말(10)과 생석회(20)를 1 : 0.24~0.36 : 0.096~0.144의 중량부율로 혼합하는 것을 특징으로 하고,The first mixing step (S1) is characterized in that the sewage sludge 50, acid component powder 10 and quicklime 20 is mixed in a weight part of 1: 0.24 ~ 0.36: 0.096 ~ 0.144,
상기 2차 혼합단계(S4)는 1차 양생단계(S3)를 거친 1차 혼합물 전체 중량에 대해 황산(30)과 제지분진(40)이 0.6~0.9 : 0.3~0.45 : 0.06~0.09 의 중량부율로 혼합하는 것을 특징으로 하며,The secondary mixing step (S4) is the sulfuric acid (30) and the paper dust (40) is 0.6 ~ 0.9: 0.3 ~ 0.45: 0.06 ~ 0.09 by weight relative to the total weight of the first mixture through the first curing step (S3) It is characterized by mixing as
상기 3차 혼합단계(S7)는 2차 양생단계(S5)를 거친 2차 혼합물(산성분말(10))에 대해 생석회(20)와 고농도 유기성 폐기물인 음식물탈리액(60)을 0.512~0.768 : 0.272~0.408 : 1.28~1.92의 중량부율로 혼합하는 것을 특징으로 하고,The tertiary mixing step (S7) is a quick-drying lime (20) and the food desorption liquid (60), which is a high concentration organic waste, for the secondary mixture (acid powder 10) that has undergone the secondary curing step (S5) 0.512 ~ 0.768: 0.272 ~ 0.408: characterized by mixing at a weight percentage of 1.28 ~ 1.92,
상기 4차 혼합단계(S9)는 2차 건조단계(S8)를 거친 건조물과 액상고형제(70)를 1.264~1.896 : 0.0632~0.0948의 중량부율로 혼합하는 것을 특징으로 하며,The fourth mixing step (S9) is characterized in that to mix the dry matter and the liquid solid agent 70 through the second drying step (S8) in a weight part ratio of 1.264 ~ 1.896: 0.0632 ~ 0.0948,
상기 산성 분말(10)은 1차 양생단계(S3)를 거친 하수슬러지 건조물과 황산(30)과 제지분진(40)이 중량부인 0.6~0.9 : 0.3~0.45 : 0.06~0.09 의 중량부율로 혼합하여 분쇄한 것을 특징으로 하고,The acidic powder (10) is mixed with a weight part of 0.6 ~ 0.9: 0.3 ~ 0.45: 0.06 ~ 0.09 parts by weight of the sewage sludge dried and sulfuric acid (30) and the paper dust (40) through the first curing step (S3) Characterized by crushed,
상기 액상고형제(70)는 시멘트와 물과 염화칼슘이 0.03624~0.5436 : 0.0238~0.0357 : 0.00361~0.00474의 중량부율로, 투입순서는 물에 염화칼슘을 혼합 한 혼합물과 분말상태의 시멘트를 동시에 투입하며 블렌딩하여 혼합하는 것을 특징으로 하며,The liquid solid agent 70 is a cement and water and calcium chloride is 0.03624 ~ 0.5436: 0.0238 ~ 0.0357: 0.00361 ~ 0.00474 by weight, the order of mixing the mixture of calcium chloride in water and the cement of powder at the same time blending Characterized in that the mixing,
상기 1차 혼합단계의 하수슬러지(50)는 저니, 염색슬러지, 도금슬러지를 사용하는 것을 특징으로 하고,The sewage sludge 50 of the first mixing step is characterized in that using the sludge, dyeing sludge, plating sludge,
상기 2차 혼합단계(S4)의 황산(30)을 대체하여 황산철, 산화철 폐황산 중 어느 하나를 선택하거나 복합적으로 사용할 수 있는 것을 특징으로 하며,By replacing the sulfuric acid 30 of the second mixing step (S4), it is characterized in that it can be selected or used in combination of iron sulfate, iron oxide waste sulfuric acid,
상기 2차 혼합단계(S4)의 제지분진(40)을 대체하여 발전소 연소재, 제철분진, 제강분진 중 어느 하나를 선택하거나 복합적으로 사용할 수 있는 것을 특징으로 하고,By replacing the papermaking dust 40 of the second mixing step (S4) characterized in that it can be selected or used in any combination of power plant combustion materials, steelmaking dust, steelmaking dust,
상기 3차 혼합단계(S7)의 고농도 유기성 폐기물인 음식물탈리액(60)을 대체하여 축산분뇨를 사용하는 것을 특징으로 하며,Characterized in that the livestock manure is used to replace the food desorption liquid 60, which is a high concentration organic waste of the third mixing step (S7),
상기 1차 혼합단계(S1)와 3차 혼합단계(S7)의 생석회(20)를 대체하여 시멘트, 제지분진 중 어느 하나를 선택하거나 복합적으로 생석회의 투입량에 1.5 ~2배를 투입하여 사용하는 것을 특징으로 하고,To replace the quicklime 20 of the first mixing step (S1) and the third mixing step (S7) to select any one of cement, papermaking dust or to use 1.5 to 2 times in combination to the input amount of quicklime Features,
상기 1차 건조단계(S2)와 2차 건조단계(S8)는 발효기 하단에 압축공기를 불어넣거나, 또는 열풍을 불어 넣어 건조시키는 것을 특징으로 하며,The first drying step (S2) and the second drying step (S8) is characterized in that the compressed air is blown to the bottom of the fermentor, or by blowing hot air to dry,
상기 2차 혼합단계(S4)에서 생산된 혼합물을 분쇄단계(S6)를 거처 상기 1차 혼합단계(S1)와 상기 3차 혼합단계(S7)에 분리하여 순환 사용 하는 것을 특징으로 하는 것이다.The mixture produced in the second mixing step (S4) is characterized in that the circulation is used by separating the first mixing step (S1) and the third mixing step (S7) through the grinding step (S6).
본 발명은 고농도 유기성 폐기물 통합처리 방법에 의하여 매립 및 해양투기로 버려지는 하수슬러지를 고화제로 제조하여, 이를 다시 고농도 유기성 폐기물인 음식물탈리액 및 축산분뇨를 처리하여, 매립장 복토재로 활용함으로써, 부족한 자원을 대체하고, 아울러 해양 투기에 의존한 슬러지를 2차적인 환경오염 없이 안전하게 처리할 수 있다.The present invention manufactures sewage sludge discarded by landfilling and ocean dumping by a high concentration organic waste integrated treatment method as a solidifying agent, by using this as a landfill cover material by treating the food desorption liquid and livestock manure, which is a high concentration organic waste, In addition, it is possible to safely dispose of sludge depending on ocean dumping without secondary environmental pollution.
이하, 본 발명에 따른 하나의 바람직한 실시 예를 첨부도면을 참조하여 상세히 설명한다. 본 발명에 따른 고농도 유기성 폐기물 통합처리 방법은; 도 1에 도시한 바와 같이, 하수슬러지(50)와 산성분말(10)과 생석회(20)를 혼합하는 1차 혼합단계(S1)와;Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. High concentration organic waste integrated treatment method according to the present invention; As shown in Figure 1, the first mixing step (S1) for mixing the sewage sludge 50, acid component powder 10 and quicklime 20;
상기 1차 혼합단계(S1)의 혼합물에 수분과 악취를 제거하기 위한 1차 건조단계(S2)와; A first drying step (S2) for removing moisture and odors in the mixture of the first mixing step (S1);
상기 1차 건조단계(S2)의 건조물에 온도와 수분을 안정화시키기 위한 1차양생단계(S3)와; A first curing step (S3) for stabilizing temperature and moisture in the dry matter of the first drying step (S2);
상기 1차 양생단계(S3)의 혼합물에 황산(30)과 제지분진(40)을 혼합하는 2차 혼합단계(S4)와; A second mixing step (S4) of mixing sulfuric acid (30) and papermaking dust (40) with the mixture of the first curing step (S3);
상기 2차 혼합단계(S4)의 혼합물의 온도와 수분을 안정화시키기 위한 2차 양생단계(S5)와; A secondary curing step (S5) for stabilizing the temperature and moisture of the mixture of the second mixing step (S4);
상기 2차 양생단계(S5)의 혼합물의 입자를 일정하게 분쇄하여 산성분말(10)을 제조하기 위한 분쇄단계(S6)와; Grinding step (S6) for producing an acid powder (10) by constantly grinding the particles of the mixture of the secondary curing step (S5);
고농도 유기성 폐기물인 음식물탈리액(60)과 산성분말(10)과 생석회(20)를 혼합하는 3차 혼합단계(S7)와; A third mixing step (S7) of mixing the food desorption liquid (60), the acid component powder (10), and the quicklime (20) which are high concentration organic wastes;
상기 3차 혼합단계(S7)의 혼합물에 수분과 악취를 제거하기 위한 2차 건조단계(S8)와; A second drying step (S8) for removing moisture and odors in the mixture of the third mixing step (S7);
상기 2차 건조단계(S8)의 건조물에 액상고형제(70)를 혼합하는 4차 혼합단계(S9)와; A fourth mixing step (S9) of mixing the liquid solid agent 70 with the dried material of the second drying step (S8);
상기 4차 혼합단계(S9)의 혼합물이 일정강도를 갖게 하기 위한 2차 양생단계(S10)를 포함하고 있다. It includes a secondary curing step (S10) for the mixture of the fourth mixing step (S9) to have a certain strength.
1차 혼합단계(S1)에서는 혼합기(믹서기)에 하수슬러지(50)와 산성분말(10)과 생석회(20)를 중량부로 1 : 0.24~0.36 : 0.096~0.144의 중량으로 혼합하는 단계이다. 먼저, 혼합기에 중량이 높은 하수 슬러지(통상 75~85% 함수율)를 먼저 넣고, 이에 산성분말과 생석회를 넣어 서서히 20~40초간 혼합하면, 강산성인 산성분말과 강 알카리성인 생석회는 하수 슬러지에 내포된 수분과 반응하여, 고온의 발열반응이 일어나게 된다. 이때 혼합물의 내부온도가 섭씨 70~90도 까지 올라가며 하수 슬러지에 내포된 수분이 수증기로 증발되고, 혼합물은 입자가 형성된다. 이때 산성분말에 대한 생석회의 중량이 5 : 2를 벗어나지 않도록 한다. 이유는 생석회의 양이 산성 분말의 양에 비하여 많이 투입되어, 혼합물의 ph가 8~10 알카리성 혼합물이 되면, 급격하게 암모니아 가스가 발생하고, 또한 2차 혼합단계(S4)에 투여되는 강 산인 황산과 반응 할 때 급격한 발열반응이 일어나기 때문이다. In the first mixing step (S1) it is a step of mixing the sewage sludge 50, acid powder 10 and quicklime 20 in a weight part of 1: 0.24 ~ 0.36: 0.096 ~ 0.144 in a mixer (mixer). First, put heavy sewage sludge (usually 75 ~ 85% water content) in the mixer first, and add acid powder and quicklime to mix for 20 ~ 40 seconds, and acid acid powder and strong alkaline quicklime are contained in sewage sludge. Reacts with the moistened water, causing a high temperature exothermic reaction. At this time, the internal temperature of the mixture rises to 70-90 degrees Celsius, and the moisture contained in the sewage sludge is evaporated into water vapor, and the mixture forms particles. At this time, the weight of quicklime in the acid powder does not deviate 5: 5: The reason is that the amount of quicklime is higher than the amount of acidic powder, and when the pH of the mixture is 8-10 alkaline mixture, ammonia gas is suddenly generated and sulfuric acid is a strong acid administered in the second mixing step (S4). This is because a rapid exothermic reaction occurs when reacting with.
따라서 1차 단계의 혼합물은 ph가 7 ~ 8 범위에 들도록 생석회는 산성분말의 5분의2비율을 벗어나지 않도록 한다. 그 이유는 생석회는 ph 12.5~13의 강알카리성 분말로 생석회의 양이 산성분말의 5분의2를 벗어나면 생성되는 1차 혼합물의 ph가 알칼리에 가까워져 기능이 저하되기 때문이다.Therefore, the mixture of the first stage so that the pH is in the range of 7 to 8 so that the quicklime does not exceed the ratio of 5/5 of the acid powder. The reason is that quicklime is a strong alkaline powder of ph 12.5-13, and when the amount of quicklime is out of two-fifths of the acidic powder, the pH of the primary mixture produced is closer to alkali, thereby degrading its function.
산성분말(10)과 생석회(20)의 투입비율은 1차 혼합물의 산도를 유지하기 위하여 일정하게 중량부를 유지하여 투입하여야 하며, 하수슬러지(50)가 포함하고 있는 수분함량(통상 75~85%)에 따라 산성분말(10)과 생석회(20)가 투입되는 중량을 상기에 기재된 범위 내에서 일정 비율로 증감을 시키게 된다. 이는 산성분말(10)과 생석회(20)의 반응열에 의하여 하수슬러지(50)에 포함되어 있는 수분을 증발시키게 되므로, 수분함량이 많으면 투입량을 증가시키고 수분함량이 적으면 투입량을 감소시키게 된다.The input ratio of the acid component powder 10 and quicklime 20 should be kept in a constant weight part to maintain the acidity of the primary mixture, and the water content of the sewage sludge 50 (usually 75-85%). Depending on the weight of the acid component 10 and the quicklime 20 is added to increase or decrease in a certain ratio within the range described above. This is to evaporate the water contained in the sewage sludge 50 by the reaction heat of the acid powder 10 and the quicklime 20, the higher the water content is increased and the smaller the water content is reduced.
또한, 계절적 요인에 따라 투입량의 변화가 있을 수 있다. 일정한 온도를 유지하는 실내에 공장설비가 설치되어 있다면 이러한 계절적 요인에 의한 온도 편차의 영향이 적을 수 있으나, 실내 공간이 아닌 외부에 야적된 상태에서 원재료인 하수슬러지(50)와 생석회(20)가 투입된다면 온도의 상승을 위하여 미리 가열을 하여 적정온도로 상승시키거나 투입되는 산성분말(10)과 생석회(20)의 양을 증가시키게 된다.In addition, there may be a change in the input amount depending on seasonal factors. If the plant is installed in a room that maintains a constant temperature, the effect of temperature variation due to these seasonal factors may be less, but the sewage sludge (50) and quicklime (20), which are raw materials, are stored in the outside of the indoor space. If the input is heated in advance to increase the temperature is raised to the appropriate temperature or the amount of the acid component powder 10 and quicklime 20 is increased.
또한, 1차 건조단계(S2)에서 건조시간의 가감 및 가열온도의 증감에 의하여 1차 건조단계(S1)와 1차 양생단계를 거쳐 함수율이 15~30%인 1차 혼합물이 만들어 진다. In addition, a primary mixture having a water content of 15 to 30% is made through the first drying step (S1) and the first curing step by the increase and decrease of the drying time and the heating temperature in the first drying step (S2).
1차 혼합물의 함수율을 15~30%가 되도록 하는 이유는 2차 혼합단계에서 황산과 섞을 때 1차 혼합물의 함수율이 높으면 첨가되는 황산의 산도가 떨어져 원활한 화학 반응이 일어나기 힘들고 아울러 화학적 반응열을 더 높이기 위하여 강알카리성인 제지분진의 투입량이 증가하여 2차 혼합단계를 거쳐, 건조된 산성분말의 ph가 상승하여 산성분말의 기능이 저하되기 때문이다.The reason why the moisture content of the primary mixture is 15 to 30% is that when the sulfuric acid is mixed with the sulfuric acid in the secondary mixing step, if the moisture content of the primary mixture is high, the acidity of the sulfuric acid to be added is low, so that the chemical reaction is difficult to occur and the heat of chemical reaction is further increased. This is because the input of strongly alkaline papermaking dust is increased through the second mixing step, and the pH of the dried acid powder is increased to decrease the function of the acid powder.
1차 혼합물이 생성되는 과정 중에 내부에 포함되어 있는 하수 슬러지에 포함되어 있는 함수분 0.75~0.85 중량부 중 20% 정도인 0.15~0.17 중량부가 화학적인 반응열에 의하여 증발이 되고 나머지는 열풍건조에 의하여 수분을 증발시켜 1차 양생단계를 거쳐 함수율이 15~30%인 1차 혼합물이 생성되는 것이다. During the process of producing the primary mixture, 0.15 to 0.17 parts by weight of about 20% of 0.75 to 0.85 parts by weight of water contained in sewage sludge contained therein are evaporated by chemical reaction heat, and the rest is evaporated by hot air drying. The water is evaporated to undergo a first curing step to produce a primary mixture with a water content of 15 to 30%.
이때에 화학 반응과 열풍건조에 의하여 증발되는 응축수의 양은 0.536~0.804중량부가 된다. At this time, the amount of condensate evaporated by chemical reaction and hot air drying is 0.536 to 0.804 parts by weight.
1차 혼합단계(S1)에서 투입되는 하수슬러지(50)의 대체 재료로는 저니, 염색슬러지, 도금슬러지중에서 선택된 적어도 하나의 슬러지가 사용될 수 있으며, 생석회의 대체 재료로는 제지분진, 시멘트가 사용될 수 있다. As an alternative material for the sewage sludge 50 introduced in the first mixing step (S1), at least one sludge selected from sludge, dyeing sludge, and plating sludge may be used, and paper dust and cement may be used as alternative materials for quicklime. Can be.
1차 건조단계(S2)와 2차 건조단계(S8)에서는 건조기에 각각 1차 혼합단계(S1)의 혼합물과 3차 혼합단계(S7)의 혼합물을 넣어, 혼합물에 내포된 수분과 악취를 제거하기 위한 단계이다. In the first drying step (S2) and the second drying step (S8), the mixture of the first mixing step (S1) and the third mixing step (S7) are put in the dryer, respectively, to remove moisture and odor contained in the mixture. It is a step to do it.
따라서 건조기 하단에 압축 공기 또는 열풍을 불어넣어, 10~30분에 한 번씩 상단과 하단의 혼합물이 압축 공기 또는 열풍과 원활히 접촉되어 효율적으로 건조하 기 위하여 혼합물을 뒤집기 하여 준다. Therefore, by blowing compressed air or hot air at the bottom of the dryer, the mixture at the top and bottom is in contact with the compressed air or hot air every 10 to 30 minutes to invert the mixture for efficient drying.
1차 양생단계(S3)와 2차 양생단계(S5)와 3차 양생단계(S10)는 각각 1차 건조단계(S2)의 건조물과 2차 혼합단계(S4)의 혼합물과 4차 혼합단계(S9)의 혼합물의 온도와 수분을 안정화시키기 위하여 자연양생 시키는 단계이다. 따라서 1~2시간에 한 번씩 3~5차례 뒤집기를 실시하여, 1차 건조단계(S2)의 건조물과 2차 양생단계(S5)의 혼합물의 온도와 수분을 안정화시켜준다. The first curing step (S3), the second curing step (S5) and the third curing step (S10), respectively, the mixture of the dry and the second mixing step (S4) and the fourth mixing step (S4) of the first drying step (S2) Natural curing is to stabilize the temperature and moisture of the mixture of S9). Therefore, by flipping three to five times once every 1 to 2 hours, the temperature and moisture of the mixture of the first drying step (S2) and the second curing step (S5) is stabilized.
3차 양생단계(S10)는 시멘트가 굳는 시간을 주는 것으로 2~24시간 정도의 자연 양생시키는 것으로, 입자들을 시멘트와 염화칼슘이 코팅시켜주어 입자를 단단하게 하여 복토재로 사용하기 용이하도록 하는 것이다. The third curing step (S10) is to give a hardening time of the cement is about 2 to 24 hours of natural curing, the particles are coated with cement and calcium chloride to harden the particles to be easy to use as cover material.
그리고 2차 혼합단계(S4)에서는 혼합기(믹서기)에 1차 양생단계(S3)를 거친 1차 혼합물과 황산(30)과 제지분진(40)을 중량부로 0.6~0.9 : 0.3~0.45 : 0.06~0.09 의 비율로 혼합하는 단계이다. 먼저, 혼합기에 1차 양생단계(S3)를 거친 1차 혼합물을 넣고, 이에 황산을 먼저 넣어 20~40초간 혼합한 후, 1~3분간의 반응시 차후에 제지분진을 넣어 20~40초간을 혼합하면, 혼합물은 강산성인 황산과 강알카리성인 제지분진의 발열반응에 의해 온도가 섭씨 100~120도로 상승하여 수분을 증발시키고, 2차 양생단계(S5)에서 열풍으로 건조하여 함수분을 0.208~0.312 중량부를 증발시켜 혼합물의 함수분이 5~10%이고 ph가 1.5~3의 강산성 혼합물이 된다. 이때 황산과 제지분진은 시차를 두고 넣어야 한다. In the second mixing step (S4), the primary mixture, the sulfuric acid (30), and the paper dust (40), which have undergone the first curing step (S3), are added to the mixer (mixer) by weight 0.6 to 0.9: 0.3 to 0.45: 0.06 to Mixing at a rate of 0.09. First, put the primary mixture that passed through the first curing step (S3) in the mixer, add sulfuric acid first and mix for 20 to 40 seconds, and then add paper dust to mix for 20 to 40 seconds after the reaction for 1 to 3 minutes The mixture is heated to 100 to 120 degrees Celsius by the exothermic reaction of strongly acidic sulfuric acid and strongly alkaline papermaking dust to evaporate water, and dried by hot air in the second curing step (S5) to make the water content 0.208 ~ 0.312. The evaporation of parts by weight yields a strongly acidic mixture of 5-10% water content and a pH of 1.5-3. At this time, sulfuric acid and paper dust should be added with time difference.
이유는 강산성인 황산과 강알카리성인 제지분진을 동시에 넣을시 폭발성 발열을 하기 때문이다. 또한, 황산과 제지 분진이 4:1의 중량부율를 유지하도록 한 다. 이유는 강알카리성인 제지분진이 다량 투입될 시 혼합물의 ph가 3~5가 되어 산성분말로서의 기능이 저하되기 때문이다.This is because explosive heating occurs when strong acidic sulfuric acid and strong alkaline paper dust are added simultaneously. In addition, sulfuric acid and paper dust are maintained at a weight ratio of 4: 1. The reason for this is that when a large amount of strong alkaline paper dust is added, the pH of the mixture is reduced to 3 to 5, thereby reducing the function of acid powder.
2차 혼합단계(S4)에서 투입되는 제지분진의 대체 재료로는 연소재, 제철분진, 제강분진이 사용될 수 있으며, 황산의 대체 재료로는 황산철, 산화철, 폐 황산이 사용될 수 있다. Alternative materials for the papermaking dust introduced in the second mixing step (S4) may be used as a combustion material, steelmaking dust, steelmaking dust, iron sulfate, iron oxide, spent sulfuric acid may be used as an alternative material of sulfuric acid.
분쇄단계(S6)에서는 2차 양생단계(S5)의 혼합물은 30~100메쉬 정도의 알갱이 형태의 입자를 형성함으로, 따라서 수분흡수의 기능을 극대화시키기 위하여, 300 ~ 500 메쉬의 사이즈로 미세하게 분쇄한다. 분쇄단계(S6)에서 생성된 결과물은 0.752~1.128 중량부가 생성되며, 이 중에 0.24~0.36 중량부는 1차 혼합단계에 순환되고, 나머지 중량부는 3차 혼합단계(S7)로 공정이 진행되는 것이다. 순환공정의 유리한 점은 상대적으로 다른 투입화학물질과 비교하여 가격이 비싼 황산의 사용을 줄이기 위함이다. In the grinding step (S6), the mixture of the secondary curing step (S5) forms particles in the form of granules of about 30 to 100 mesh, and thus finely grinds to 300 to 500 mesh in order to maximize the function of water absorption. do. The resultant product produced in the crushing step (S6) is produced 0.752 ~ 1.128 parts by weight, 0.24 ~ 0.36 parts by weight of the first mixing step is circulated, the remaining part is to proceed to the third mixing step (S7). The advantage of the circulating process is to reduce the use of sulfuric acid, which is relatively expensive compared to other input chemicals.
3차 혼합단계(S7)에서는 혼합기(믹서기)에 산성분말(10)과 생석회(20)와 고농도 유기성 폐기물인 음식물탈리액(60)을 각각 0.512~0.768 : 0.272~0.408 : 1.28~1.92 의 중량부로 혼합하는 단계이다. 먼저, 혼합기에 비율이 높은 고농도 유기성 폐기물인 음식물탈리액을 먼저 넣고, 이에 산성분말과 생석회를 넣어 서서히 20~40초간 혼합하면, 강산성인 산성분말과 강알카리성인 생석회는 하수슬러지에 내포된 수분과 반응하여, 고온의 발열반응이 일어나고, 혼합물의 내부온도가 섭씨 70~90도까지 올라가 이때 고농도 유기성 폐기물인 음식물탈리액에 내포된 수분이 수증기로 증발되고, 혼합물은 입자가 형성된다. 입자가 형성되는 것은 혼합물에 포 함되어 있는 칼슘성분이 황산과 반응하여 석고로 치환되는 것이 입자상을 나타내기 때문이다. In the third mixing step (S7), the acid component powder 10, quicklime 20, and food desorption liquid 60, which is a high concentration organic waste, are mixed in a weight part of 0.512 to 0.768: 0.272 to 0.408: 1.28 to 1.92, respectively, in a mixer (mixer). It's a step. First, the food desorption solution, which is a high concentration organic waste, is added to the mixer first, and then acid powder and quicklime are added and mixed for 20 to 40 seconds. Thus, a high temperature exothermic reaction occurs, and the internal temperature of the mixture rises to 70 to 90 degrees Celsius, at which time the water contained in the food stripping solution, which is a high concentration organic waste, is evaporated into water vapor, and the mixture forms particles. The particles are formed because the calcium component contained in the mixture reacts with sulfuric acid and is replaced by gypsum.
이때 산성분말과 생석회의 투입되는 중량이 1차 혼합단계(S1)에서 보다 더 넣어야 한다. 이유는 1차 혼합단계(S1)의 하수슬러지는 함수율이 75~85%지만 음식물탈리액은 함수율이 85%~90%라, 3차 혼합단계(S7)에서는 산성분말과 생석회의 투입량을 늘려야만 1차 혼합단계와 같은 효과를 얻을 수 있기 때문이다. 1차 혼합단계(S1)에서 하수슬러지에 대하여 산성분말과 생석회의 투입되는 량은 1 : 0.336~0.504 중량부의 비율이었으나, 3차 혼합단계(S7)에서 음식물탈리액에 대하여 산성분말과 생석회의 투입량은 1 : 0.49~0.735 중량부의 비율이다. At this time, the weight of acid powder and quicklime should be added more than in the first mixing step (S1). The reason is that the sewage sludge in the first mixing step (S1) has a water content of 75 to 85%, but the food desorption solution has a water content of 85% to 90%, and in the third mixing step (S7), the amount of acid powder and quicklime must be increased. This is because the same effect as the tea mixing step can be obtained. The amount of acid powder and quicklime added to the sewage sludge in the first mixing step (S1) was 1: 0.336 to 0.504 parts by weight, but the amount of acidic powder and quicklime was added to the food desorption solution in the third mixing step (S7). 1: The ratio is 0.49 to 0.735 parts by weight.
3차 혼합단계(S7)에서 투입되는 생석회의 대체 재료로는 제지분진, 시멘트가 사용될 수 있으며, 고농도 유기성 폐기물인 음식물탈리액의 대체 재료로는 축산 분뇨가 사용될 수 있다. Papermaking dust and cement may be used as an alternative material for quicklime added in the third mixing step (S7), and livestock manure may be used as an alternative material for food desorption liquid, which is a high concentration of organic waste.
4차 혼합단계(S9)에서는 혼합기(믹서기)에 2차 건조단계(S8)의 건조물과 액상고형제(70)를 중량부로 1.264~1.896 : 0.0632~0.0948의 비율로 혼합하는 단계이다. 먼저, 2차 건조단계(S8)의 건조물을 혼합기에 넣고, 혼합기를 가동시키며, 액상고형제(70)가 2차 건조단계(S8)의 건조물의 표면에 묻듯이 혼합한다. 이유는 2차 건조단계(S8)의 건조물과 액상고형제(70)를 한번에 넣어 혼합하면, 혼합물의 일부만 덩어리 형태가 되어, 전체적인 일정강도의 입자를 형성할 수 없기 때문이다. In the fourth mixing step (S9) is a step of mixing the dry matter of the second drying step (S8) and the liquid solid agent 70 in a weight part of 1.264 ~ 1.896: 0.0632 ~ 0.0948 in a mixer (mixer). First, the dry matter of the second drying step (S8) is put into the mixer, the mixer is operated, and the liquid solid agent 70 is mixed as if buried on the surface of the dry matter of the second drying step (S8). The reason is that when the dry matter of the second drying step (S8) and the liquid solid agent 70 are put together and mixed at a time, only a part of the mixture becomes agglomerate, and thus it is not possible to form particles of a constant overall strength.
또한, 이때 액상고형제(70)를 쓰는 이유는 2차 건조단계(S8)의 건조물은 함수율 20~30%이므로 입자형태이고 따라서 분말형태의 고형제로는 수분이 적어 반응이 되지 않기 때문에 수분이 함유된 액상고형제(70)를 사용하는 것이다.In this case, the reason for using the liquid solid agent 70 is that the dry matter of the second drying step (S8) is 20-30% of moisture content, so it is in the form of particles. It is to use the liquid solid agent 70.
따라서 액상고형제(70)는 분말상태의 시멘트와 물과 염화칼슘이 0.03624~0.5436 : 0.0238~0.0357 : 0.00361~0.00474의 중량부율로 혼합된 액상이며, 이때 염화칼슘은 시멘트의 수화반응을 촉진시켜, 혼합물을 단시간에 일정강도를 갖게 하는 기능을 갖는다.Therefore, the liquid solid agent 70 is a liquid in which powdered cement, water, and calcium chloride are mixed at a weight ratio of 0.03624 to 0.5436: 0.0238 to 0.0357: 0.00361 to 0.00474 by weight, wherein calcium chloride promotes the hydration reaction of the cement to form a mixture. It has a function of having a certain strength in a short time.
액상고형제(70)는 분말상태의 시멘트와 물과 염화칼슘으로 구성되어 있으며, 투입순서는 물에 염화칼슘을 혼합한 혼합물과 분말상태의 시멘트를 동시에 투입하며 블렌딩하여 시멘트 분말이 물과 반응하여 재료를 준비중에 굳어지는 것을 방지하기 위한 것이다. 분말이 아닌 액상을 사용하는 이유는 시멘트가 혼합된 4차 혼합단계 (S9)의 혼합물은 혼합단계에서 하나의 덩어리로 혼합물이 형성되는 것을 방지하기 위한 것이다. The liquid solid agent 70 is composed of powdered cement, water and calcium chloride, and the order of input is a mixture of calcium chloride in water and powdered cement at the same time. This is to prevent hardening during preparation. The reason for using a liquid rather than a powder is to prevent the mixture of the fourth mixing step (S9) in which the cement is mixed from forming a mixture in one mass in the mixing step.
4차 혼합단계(S9)를 거친 혼합물은 3차 양생단계(S10)에서 시멘트가 굳는 시간을 주는 것으로 2~24시간 정도의 자연 양생시키는 것이며, 자연 양생 시간에 증발되는 수분의 양은 0.1272~0.1908 중량부가 증발되어 복토재로 사용하기 용이하도록 하는 것이다.The mixture that passed through the fourth mixing step (S9) is to give the time for cement to harden in the third curing step (S10), which is about 2 to 24 hours of natural curing, and the amount of water evaporated during the natural curing time is 0.1272 to 0.1908 weight The addition is evaporated to facilitate the use as cover material.
발명의 기술을 정리하면 함수율 75~85%의 하수슬러지(50)에 산성분말(10)과 생석회(20)를 일정비율로 1차 혼합하면, 1차 혼합물은 강상성의 산성분말과 강알카 리성인 생석회가 하수슬러지의 수분과 반응하여, 화학적 발열반응이 일어나고, 발열이 발생되는 1차 혼합물을 압축 공기 또는 열풍이 순환되는 건조장치에 넣어, 혼합물의 상단과 하단에 원활하게 압축 공기 또는 열풍이 접촉될 수 있도록 하여, 1차 건조하면, 1차 혼합물은 다량의 수분과 악취가 제거되고, 1차 양생단계를 거친 1차 혼합물은 함수율 15~30%의 1차 안정화물이 되고, 1차 안정화물에 황산(30)과 제지분진(40)을 일정비율로 2차 혼합하면, 강산성인 황산과 강알카리성인 제지분진의 화학적 발열반응에 의해 1차 안정화물은 2차 양생단계를 거쳐, 함수율 5~15%의 2차 안정화물이 되고, 2차 안정화물을 미분쇄하면, ph 1.5~ 3의 산성분말(10)이 되고, 산성분말(10)을 생석회(20)와 함수율 85~90%의 고농도 유기성 폐기물인 음식물탈리액(60)에 일정비율로 3차 혼합하면, 강산성인 산성분말과 강알카리성인 생석회는 고농도 유기성 폐기물인 음식물탈리액의 수분과 반응하여, 화학적 발열반응이 일어나고, 발열이 발생되는 3차 혼합물을 압축 공기 또는 열풍이 순환되는 건조장치에 넣어, 혼합물의 상단과 하단에 원활하게 압축 공기또는 열풍이 접촉될 수 있도록 하여, 2차 건조시키면, 3차 혼합물은 다량의 수분과 악취가 제거되어, 함수율 20~30%의 3차 안정화물이 되고, 3차 안정화물에 시멘트와 물과 염화칼슘으로 구성된 액상고형제(70)를 일정비율로 4차 혼합하면, 혼합물 중 염화칼슘은 시멘트의 수화반응을 촉진시켜, 2차 양생단계를 거친 3차 안정화물은, 일정강도가 있는 흙과 동일한 형태의 복토재가 된다.In summary, when the primary ingredient of the acid component 10 and the quicklime 20 is mixed with the sewage sludge 50 having a water content of 75 to 85% at a constant ratio, the primary mixture is a strong acid powder and a strong alkali. Quicklime reacts with the water of sewage sludge, chemical exothermic reaction occurs, and the exothermic primary mixture is placed in a drying device where compressed air or hot air is circulated, so that compressed air or hot air smoothly contacts the top and bottom of the mixture. When the first drying, the first mixture is a large amount of water and odor is removed, the first mixture after the first curing step is the first stabilization of the water content 15-30%, the first stabilizer When sulfuric acid (30) and papermaking dust (40) are mixed in a second at a constant ratio, the first stabilizer is subjected to a secondary curing step by chemical exothermic reaction of strongly acidic sulfuric acid and strongly alkaline papermaking dust. Secondary stabilizer of 15%, secondary stabilized When pulverized, it becomes the acid component powder 10 of ph 1.5-3, and the acid component powder 10 is quickened to the quicklime 20 and the food desorption liquid 60 which is a high concentration organic waste of 85-90% of water content at a fixed ratio. When mixed, strongly acidic acid powder and strong alkaline quicklime react with moisture in food desorption liquid, which is a high concentration of organic waste, causing chemical exothermic reaction, and the tertiary mixture in which exotherm is generated is put in a drying device where compressed air or hot air is circulated. When the secondary mixture is dried in such a way that the compressed air or hot air can be smoothly contacted with the upper and lower portions of the mixture, the tertiary mixture can remove a large amount of moisture and odors, resulting in a tertiary stabilizer having a water content of 20-30% When the fourth solid mixture of cement, water and calcium chloride composed of water and calcium chloride in a third ratio is added to the third stabilizer, calcium chloride in the mixture promotes the hydration reaction of the cement, and thus undergoes the third curing step. Silver days Is the same form and that the strength of boktojae soil.
도 2는 본 발명에 따른 혼합물의 성분을 보이는 것으로, 황산(30)은 황산철, 산화철 폐 황산 중 어느 하나를 선택하거나 복합적으로 사용이 가능하며, 제지 분진(40)을 발전소 연소재, 제철분진, 제강분진 중 어느 하나를 선택하거나 복합적으로 사용 가능한 것이고, 고농도 유기성 폐기물인 음식물탈리액은 축산분뇨로 사용 가능한 사항을 설명하며, 각 단계에서 혼합되는 성분들의 중량부를 설명하고 있다.Figure 2 shows the components of the mixture according to the present invention, sulfuric acid 30 can be selected or used in combination of iron sulfate, iron oxide waste sulfuric acid, the papermaking dust 40 is a power plant combustion material, steelmaking dust It is possible to select one of the steelmaking dusts or to use it in combination, and the food stripping solution, which is a high concentration organic waste, describes the matters that can be used as livestock manure, and describes the weight parts of the components mixed in each step.
도 3은 본 발명에 따른 혼합단계별 실시예 이며.3 is an embodiment according to the mixing step according to the present invention.
도 4는 본 발명에 따라 제조된 매립장 복토재의 실시예이다.Figure 4 is an embodiment of a landfill cover material prepared according to the present invention.
이상으로, 본 발명에 따른 고농도 유기성 폐기물 통합처리 방법을 설명하였으나, 본 발명의 권리 범위는 여기에 한정되지 않으며, 청구범위에 기재된 사항과 균등한 범위의 모든 기술적 사상에 대하여 미친다고 할 것이다. As described above, the high concentration organic waste integrated treatment method according to the present invention has been described, but the scope of the present invention is not limited to this, and it will be said that all technical ideas within the scope equivalent to those described in the claims.
도 1은 본 발명에 따른 고농도 유기성 폐기물 통합처리 방법을 나타내며, 1 shows a high concentration organic waste integrated treatment method according to the present invention,
도 2는 본 발명에 따른 혼합단계별 혼합물의 성분을 보이는 것이고, 도 3은 본 발명에 따른 혼합단계별 실시예 이며.Figure 2 shows the components of the mixture for each mixing stage according to the invention, Figure 3 is an embodiment for each mixing stage according to the present invention.
도 4는 본 발명에 따라 제조된 매립장 복토재의 실시예이다.Figure 4 is an embodiment of a landfill cover material prepared according to the present invention.
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KR100903604B1 (en) | 2008-09-18 | 2009-06-18 | 유종희 | The soil composition the sludge of waste water treatment for recovering an abandoned stony mountain |
KR101091558B1 (en) | 2009-05-26 | 2011-12-14 | 주식회사 법면녹화육운 | Ecological reclamation agent manufacturing mehtod |
KR101091557B1 (en) | 2009-05-26 | 2011-12-14 | 주식회사 법면녹화육운 | Ecological reclamation agent manufacturing method utilizing alkali dust waste material |
KR101301122B1 (en) * | 2011-03-10 | 2013-09-03 | 강철규 | Method and apparatus for treating sludge |
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JPS594499A (en) | 1982-06-29 | 1984-01-11 | Toray Eng Co Ltd | Treatment of sludge |
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KR100903604B1 (en) | 2008-09-18 | 2009-06-18 | 유종희 | The soil composition the sludge of waste water treatment for recovering an abandoned stony mountain |
KR101091558B1 (en) | 2009-05-26 | 2011-12-14 | 주식회사 법면녹화육운 | Ecological reclamation agent manufacturing mehtod |
KR101091557B1 (en) | 2009-05-26 | 2011-12-14 | 주식회사 법면녹화육운 | Ecological reclamation agent manufacturing method utilizing alkali dust waste material |
KR101301122B1 (en) * | 2011-03-10 | 2013-09-03 | 강철규 | Method and apparatus for treating sludge |
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