生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污水(shui)(shui)是居(ju)(ju)民日(ri)常生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)中排(pai)出的(de)廢水(shui)(shui)，主(zhu)要來源于(yu)居(ju)(ju)住建筑(zhu)和(he)(he)公(gong)共(gong)(gong)建筑(zhu)，如(ru)住宅、機(ji)關、學校、醫院、商店、公(gong)共(gong)(gong)場所及工業(ye)企(qi)業(ye)衛生(sheng)(sheng)(sheng)(sheng)(sheng)間等。生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污水(shui)(shui)所含的(de)污染物主(zhu)要是有機(ji)物(如(ru)蛋白質、碳水(shui)(shui)化合物、脂(zhi)肪(fang)、尿(niao)素、氨氮等) 和(he)(he)大量病(bing)原微生(sheng)(sheng)(sheng)(sheng)(sheng)物(如(ru)寄生(sheng)(sheng)(sheng)(sheng)(sheng)蟲卵和(he)(he)腸道傳染病(bing)毒等)。存(cun)在于(yu)生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污水(shui)(shui)中的(de)有機(ji)物極不穩定，容(rong)易(yi)腐(fu)化而產生(sheng)(sheng)(sheng)(sheng)(sheng)惡臭。細菌和(he)(he)病(bing)原體(ti)以(yi)生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污水(shui)(shui)中有機(ji)物為營養(yang)而大量繁殖，可導致傳染病(bing)蔓延流行(xing)。因此，生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)(huo)污水(shui)(shui)排(pai)放前必須進行(xing)處理。

常見生活污水處理流程如下：