生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污水(shui)是居(ju)民日常生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)中排出的(de)廢水(shui)，主要(yao)來源(yuan)于居(ju)住建筑和公(gong)共建筑，如住宅(zhai)、機關、學校、醫院、商(shang)店、公(gong)共場所(suo)及工(gong)業(ye)企業(ye)衛生(sheng)(sheng)(sheng)(sheng)(sheng)間等(deng)。生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污水(shui)所(suo)含的(de)污染物(wu)(wu)主要(yao)是有(you)機物(wu)(wu)(如蛋(dan)白(bai)質、碳水(shui)化合物(wu)(wu)、脂肪、尿(niao)素(su)、氨氮等(deng)) 和大量病(bing)(bing)原(yuan)微生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(如寄(ji)生(sheng)(sheng)(sheng)(sheng)(sheng)蟲卵(luan)和腸(chang)道傳染病(bing)(bing)毒等(deng))。存在于生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污水(shui)中的(de)有(you)機物(wu)(wu)極不穩定，容易腐化而產生(sheng)(sheng)(sheng)(sheng)(sheng)惡臭。細菌和病(bing)(bing)原(yuan)體以生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污水(shui)中有(you)機物(wu)(wu)為營養而大量繁殖，可導致傳染病(bing)(bing)蔓(man)延流行(xing)。因此，生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)(huo)污水(shui)排放前必須進(jin)行(xing)處理。

常見生活污水處理流程如下：