生活污水處理工程

生(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)水(shui)(shui)是居民日(ri)常生(sheng)(sheng)(sheng)活(huo)(huo)(huo)中(zhong)排出的廢水(shui)(shui)，主要來(lai)源于(yu)居住建筑(zhu)(zhu)和公(gong)共建筑(zhu)(zhu)，如(ru)住宅、機(ji)關、學(xue)校、醫院、商店、公(gong)共場所及工(gong)業(ye)企業(ye)衛生(sheng)(sheng)(sheng)間等(deng)。生(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)水(shui)(shui)所含的污(wu)染物主要是有機(ji)物(如(ru)蛋白質、碳水(shui)(shui)化合物、脂(zhi)肪、尿(niao)素、氨(an)氮等(deng)) 和大(da)量病原微生(sheng)(sheng)(sheng)物(如(ru)寄生(sheng)(sheng)(sheng)蟲卵和腸(chang)道傳(chuan)染病毒等(deng))。存在(zai)于(yu)生(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)水(shui)(shui)中(zhong)的有機(ji)物極不穩定，容(rong)易腐化而(er)產(chan)生(sheng)(sheng)(sheng)惡臭。細菌和病原體以生(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)水(shui)(shui)中(zhong)有機(ji)物為營養(yang)而(er)大(da)量繁殖(zhi)，可導致傳(chuan)染病蔓延流行。因此，生(sheng)(sheng)(sheng)活(huo)(huo)(huo)污(wu)水(shui)(shui)排放前必須(xu)進(jin)行處(chu)理。

常見生活污水處理流程如下：