生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水是(shi)居民日常生(sheng)(sheng)(sheng)(sheng)活(huo)(huo)中(zhong)排(pai)出的(de)廢水，主要來源于居住建筑和(he)(he)公共(gong)建筑，如(ru)住宅、機(ji)關、學校、醫院(yuan)、商店、公共(gong)場所(suo)及(ji)工業企業衛生(sheng)(sheng)(sheng)(sheng)間等(deng)。生(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水所(suo)含的(de)污(wu)(wu)染(ran)(ran)物(wu)(wu)(wu)主要是(shi)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、氨氮等(deng)) 和(he)(he)大(da)量(liang)病(bing)原(yuan)微生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)(如(ru)寄(ji)生(sheng)(sheng)(sheng)(sheng)蟲卵和(he)(he)腸道傳染(ran)(ran)病(bing)毒等(deng))。存在于生(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水中(zhong)的(de)有(you)機(ji)物(wu)(wu)(wu)極不穩定，容易腐化而(er)產(chan)生(sheng)(sheng)(sheng)(sheng)惡臭。細(xi)菌和(he)(he)病(bing)原(yuan)體以(yi)生(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水中(zhong)有(you)機(ji)物(wu)(wu)(wu)為營養而(er)大(da)量(liang)繁殖，可導(dao)致傳染(ran)(ran)病(bing)蔓延流行。因(yin)此，生(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水排(pai)放前必須進行處理。

常見生活污水處理流程如下：