生活污水處理工程

生(sheng)(sheng)(sheng)活污(wu)水(shui)是居民日常生(sheng)(sheng)(sheng)活中(zhong)(zhong)(zhong)排(pai)出(chu)的(de)廢水(shui)，主(zhu)要(yao)(yao)來源(yuan)于居住(zhu)建筑和(he)公共建筑，如(ru)住(zhu)宅、機(ji)(ji)關、學校、醫院、商店(dian)、公共場所及工業企業衛(wei)生(sheng)(sheng)(sheng)間(jian)等(deng)(deng)。生(sheng)(sheng)(sheng)活污(wu)水(shui)所含(han)的(de)污(wu)染(ran)(ran)物(wu)(wu)主(zhu)要(yao)(yao)是有機(ji)(ji)物(wu)(wu)(如(ru)蛋白質、碳(tan)水(shui)化合(he)物(wu)(wu)、脂肪、尿素、氨氮等(deng)(deng)) 和(he)大量病(bing)原(yuan)微生(sheng)(sheng)(sheng)物(wu)(wu)(如(ru)寄生(sheng)(sheng)(sheng)蟲卵和(he)腸(chang)道傳染(ran)(ran)病(bing)毒等(deng)(deng))。存在于生(sheng)(sheng)(sheng)活污(wu)水(shui)中(zhong)(zhong)(zhong)的(de)有機(ji)(ji)物(wu)(wu)極不穩(wen)定，容易腐化而(er)產(chan)生(sheng)(sheng)(sheng)惡臭(chou)。細菌和(he)病(bing)原(yuan)體以生(sheng)(sheng)(sheng)活污(wu)水(shui)中(zhong)(zhong)(zhong)有機(ji)(ji)物(wu)(wu)為營養而(er)大量繁殖，可導致(zhi)傳染(ran)(ran)病(bing)蔓延流行。因(yin)此，生(sheng)(sheng)(sheng)活污(wu)水(shui)排(pai)放(fang)前(qian)必須進行處理。

常見生活污水處理流程如下：