Municipal waste water contains relatively large amounts of organic matter, solids, and nutrients ... more Municipal waste water contains relatively large amounts of organic matter, solids, and nutrients such as nitrogen and phosphorous. as discussed in later chapters, all of these items may adversely impact the chemical and biological balances of a river if they are improperly discharged. In addition, untreated waste water may spread disease among humans by exposure during drinking, bathing, or swimming. the purpose of municipal waste water treatment is to first collect and transport the waste water to a treatment plant, where it is treated to remove dissolved and particulate organic matter, solids, nutrients, and pathogens to levels that will not cause an adverse impact on human health and environment. These goals are met by constructing a treatment plant that employs physical, chemical, and biological treatment processes. figure 1-1 shows an overhead photo of large treatment plant used by a major U.S. city. there are many tanks and buildings in the photo, and each of them has some specialized job for pumping or treating the waste water and sludge generated during treatment. each of these specialized unit processes employs some fundamental aspects of chemical, biological, or physical processes. for example, solids are removed by the physical process or gravity settling; organic matter is removed by physical process like gravity settling if it is in a particulate form and by a bilogical process if it is dissolved and readily assimilated by microorganisms; and phosphorus can be removed by chemical and/or bilogical method. in addition, there may be a need to determine how much of the potential pollutants in the waste water a lake or river can safely assimilated. this requires knowledge of the chemistry and biology of the receiving water as well as how physical processes such as mixing and transport influence the pollutant. Air limbah kota berisi jumlah relatif besar bahan organik, padatan, dan nutrisi seperti nitrogen dan fosfor. seperti telah dibahas dalam bab-bab kemudiannya, Semua item ini mungkin dampak negatif saldo kimia dan biologi Sungai jika tidak semestinya dibongkar.
Municipal waste water contains relatively large amounts of organic matter, solids, and nutrients ... more Municipal waste water contains relatively large amounts of organic matter, solids, and nutrients such as nitrogen and phosphorous. as discussed in later chapters, all of these items may adversely impact the chemical and biological balances of a river if they are improperly discharged. In addition, untreated waste water may spread disease among humans by exposure during drinking, bathing, or swimming. the purpose of municipal waste water treatment is to first collect and transport the waste water to a treatment plant, where it is treated to remove dissolved and particulate organic matter, solids, nutrients, and pathogens to levels that will not cause an adverse impact on human health and environment. These goals are met by constructing a treatment plant that employs physical, chemical, and biological treatment processes. figure 1-1 shows an overhead photo of large treatment plant used by a major U.S. city. there are many tanks and buildings in the photo, and each of them has some specialized job for pumping or treating the waste water and sludge generated during treatment. each of these specialized unit processes employs some fundamental aspects of chemical, biological, or physical processes. for example, solids are removed by the physical process or gravity settling; organic matter is removed by physical process like gravity settling if it is in a particulate form and by a bilogical process if it is dissolved and readily assimilated by microorganisms; and phosphorus can be removed by chemical and/or bilogical method. in addition, there may be a need to determine how much of the potential pollutants in the waste water a lake or river can safely assimilated. this requires knowledge of the chemistry and biology of the receiving water as well as how physical processes such as mixing and transport influence the pollutant. Air limbah kota berisi jumlah relatif besar bahan organik, padatan, dan nutrisi seperti nitrogen dan fosfor. seperti telah dibahas dalam bab-bab kemudiannya, Semua item ini mungkin dampak negatif saldo kimia dan biologi Sungai jika tidak semestinya dibongkar.
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