生活污水處理工程

生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)(shui)是(shi)居(ju)民日常生(sheng)(sheng)(sheng)活(huo)中(zhong)排出的(de)廢水(shui)(shui)，主要(yao)來(lai)源于居(ju)住(zhu)建(jian)筑和(he)(he)公(gong)(gong)共建(jian)筑，如住(zhu)宅(zhai)、機(ji)關、學校、醫院(yuan)、商店、公(gong)(gong)共場所及工業企業衛生(sheng)(sheng)(sheng)間等。生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)(shui)所含的(de)污(wu)(wu)染物(wu)主要(yao)是(shi)有(you)機(ji)物(wu)(如蛋白質、碳水(shui)(shui)化合物(wu)、脂肪、尿素、氨氮等) 和(he)(he)大(da)量病(bing)原微生(sheng)(sheng)(sheng)物(wu)(如寄(ji)生(sheng)(sheng)(sheng)蟲卵(luan)和(he)(he)腸(chang)道傳染病(bing)毒等)。存在(zai)于生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)(shui)中(zhong)的(de)有(you)機(ji)物(wu)極不穩定，容(rong)易(yi)腐化而(er)產生(sheng)(sheng)(sheng)惡臭。細菌和(he)(he)病(bing)原體以生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)(shui)中(zhong)有(you)機(ji)物(wu)為營養而(er)大(da)量繁殖(zhi)，可導(dao)致傳染病(bing)蔓延流(liu)行。因(yin)此，生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)(shui)排放前必須進行處理。

常見生活污水處理流程如下：