生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)是居民日常(chang)生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)中排出的(de)廢水(shui)(shui)，主(zhu)要來(lai)源于居住(zhu)建筑和(he)公共建筑，如住(zhu)宅、機關、學校、醫院、商店(dian)、公共場所及工(gong)業企業衛生(sheng)(sheng)(sheng)(sheng)(sheng)間等(deng)(deng)。生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)所含的(de)污(wu)染物主(zhu)要是有機物(如蛋(dan)白質、碳(tan)水(shui)(shui)化(hua)合(he)物、脂肪、尿素、氨(an)氮等(deng)(deng)) 和(he)大(da)(da)量病原微生(sheng)(sheng)(sheng)(sheng)(sheng)物(如寄生(sheng)(sheng)(sheng)(sheng)(sheng)蟲卵和(he)腸道(dao)傳染病毒等(deng)(deng))。存在于生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)中的(de)有機物極不穩定，容(rong)易腐化(hua)而產生(sheng)(sheng)(sheng)(sheng)(sheng)惡(e)臭。細菌和(he)病原體以生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)中有機物為(wei)營養而大(da)(da)量繁殖，可導(dao)致傳染病蔓延流行(xing)。因此(ci)，生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)排放(fang)前必須(xu)進(jin)行(xing)處(chu)理。

常見生活污水處理流程如下：