生活污水處理工程

生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)水(shui)(shui)(shui)是(shi)(shi)居民(min)日(ri)常生(sheng)(sheng)(sheng)活(huo)(huo)中排出的廢水(shui)(shui)(shui)，主(zhu)要來(lai)源于居住建(jian)筑和(he)公(gong)共(gong)建(jian)筑，如(ru)住宅、機(ji)(ji)關、學校、醫院、商店、公(gong)共(gong)場所(suo)及工業企業衛生(sheng)(sheng)(sheng)間等(deng)。生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)水(shui)(shui)(shui)所(suo)含(han)的污(wu)染物(wu)主(zhu)要是(shi)(shi)有機(ji)(ji)物(wu)(如(ru)蛋白質、碳水(shui)(shui)(shui)化(hua)合物(wu)、脂(zhi)肪、尿(niao)素、氨(an)氮等(deng)) 和(he)大量病原(yuan)微生(sheng)(sheng)(sheng)物(wu)(如(ru)寄生(sheng)(sheng)(sheng)蟲卵(luan)和(he)腸道傳染病毒(du)等(deng))。存在于生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)水(shui)(shui)(shui)中的有機(ji)(ji)物(wu)極不穩定，容(rong)易腐化(hua)而(er)產(chan)生(sheng)(sheng)(sheng)惡臭。細(xi)菌和(he)病原(yuan)體以生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)水(shui)(shui)(shui)中有機(ji)(ji)物(wu)為營養(yang)而(er)大量繁殖，可導(dao)致傳染病蔓(man)延流(liu)行。因此，生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)水(shui)(shui)(shui)排放前必須進行處(chu)理(li)。

常見生活污水處理流程如下：