粪便中的固形物沉淀在化粪池中,通过厌氧微生物的作用使其中大部分有机物得到厌氧降解,同时通过化粪池处理可以使粪便中的大部分寄生虫卵、病菌死亡。那些最后不能被厌氧微生物分解的残渣会定期被抽粪车抽走，目前所有城市的环卫部门基本都建有粪便残渣处理中心，主要是通过压滤脱水后作为固体废弃物被填埋。
The solid matter in the feces is deposited in the septic tank, and most of the organic matter is anaerobic degraded by anaerobic microorganisms. At the same time, most of the parasitic eggs and bacteria in the feces can be killed by septic tank treatment. The residues that can't be decomposed by anaerobic microorganisms will be regularly removed by the garbage truck. At present, the environmental sanitation departments in all cities have basically built fecal residue treatment centers, which are mainly used as solid waste after pressure filtration and dehydration.
而化粪池中出来的上清液就是我们认为的生活污水的一部分，大中型城市一般都建有城市生活污水处理厂，该废水就进入污水处理厂处理。一些没有建污水处理厂的城市，废水就直接排放到水体中。
The supernatant from the septic tank is a part of the domestic sewage that we think. Large and medium-sized cities generally have urban domestic sewage treatment plants, and the wastewater is treated by the sewage treatment plants. In some cities without sewage treatment plants, wastewater is directly discharged into the water body.
首先所有的住宅都配套建设有化粪池，这一点一般不会有问题。粪便中的固形物沉淀在化粪池中，通过厌氧微生物的作用使其中大部分有机物得到厌氧降解，

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同时通过化粪池处理可以使粪便中的大部分寄生虫卵、病菌死亡，产生沼气。那些最后不能被厌氧微生物分解的残渣会定期被环卫部门的抽粪车抽走，目前所有城市的环卫部门基本都建有粪便残渣处理中心，主要是通过压滤脱水后作为固体废弃物被填埋。
First of all, all houses are equipped with septic tanks, which is generally not a problem. The solid matter in the feces is deposited in the septic tank, and most of the organic matter is anaerobic degraded by the role of anaerobic microorganisms. At the same time, most of the parasitic eggs and bacteria in the feces can be killed by septic tank treatment, and biogas can be produced. The residues that can not be decomposed by anaerobic microorganisms will be regularly removed by the garbage truck of the environmental sanitation department. At present, the environmental sanitation department of all cities has basically built a fecal residue treatment center, which is mainly used as solid waste after pressure filtration and dehydration.