生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)活污水是居(ju)民日常(chang)生(sheng)(sheng)(sheng)(sheng)活中(zhong)排(pai)出的(de)廢水，主要來(lai)源于居(ju)住建筑和(he)公(gong)(gong)共(gong)建筑，如(ru)住宅、機(ji)關、學(xue)校、醫院、商店、公(gong)(gong)共(gong)場(chang)所(suo)及工(gong)業(ye)企業(ye)衛生(sheng)(sheng)(sheng)(sheng)間等(deng)。生(sheng)(sheng)(sheng)(sheng)活污水所(suo)含的(de)污染(ran)物(wu)(wu)(wu)主要是有(you)機(ji)物(wu)(wu)(wu)(如(ru)蛋白質、碳水化合物(wu)(wu)(wu)、脂肪、尿素、氨(an)氮等(deng)) 和(he)大(da)量病(bing)原微生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(如(ru)寄生(sheng)(sheng)(sheng)(sheng)蟲卵和(he)腸道傳染(ran)病(bing)毒(du)等(deng))。存(cun)在(zai)于生(sheng)(sheng)(sheng)(sheng)活污水中(zhong)的(de)有(you)機(ji)物(wu)(wu)(wu)極不穩定(ding)，容易(yi)腐化而產(chan)生(sheng)(sheng)(sheng)(sheng)惡臭(chou)。細(xi)菌(jun)和(he)病(bing)原體以生(sheng)(sheng)(sheng)(sheng)活污水中(zhong)有(you)機(ji)物(wu)(wu)(wu)為(wei)營養而大(da)量繁殖，可導致傳染(ran)病(bing)蔓延流行(xing)(xing)。因此，生(sheng)(sheng)(sheng)(sheng)活污水排(pai)放(fang)前必(bi)須進行(xing)(xing)處理。

常見生活污水處理流程如下：