生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)(wu)(wu)水(shui)是居民日(ri)常生(sheng)(sheng)(sheng)(sheng)活(huo)中排出的廢水(shui)，主要(yao)來源于居住建筑和公共建筑，如(ru)住宅、機(ji)(ji)關、學校(xiao)、醫院(yuan)、商店、公共場(chang)所及工業(ye)企(qi)業(ye)衛(wei)生(sheng)(sheng)(sheng)(sheng)間等(deng)。生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)(wu)(wu)水(shui)所含的污(wu)(wu)(wu)染(ran)(ran)物(wu)主要(yao)是有(you)(you)機(ji)(ji)物(wu)(如(ru)蛋白(bai)質、碳(tan)水(shui)化(hua)合物(wu)、脂肪、尿(niao)素、氨氮等(deng)) 和大量病原微生(sheng)(sheng)(sheng)(sheng)物(wu)(如(ru)寄生(sheng)(sheng)(sheng)(sheng)蟲卵和腸道傳(chuan)(chuan)染(ran)(ran)病毒等(deng))。存在于生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)(wu)(wu)水(shui)中的有(you)(you)機(ji)(ji)物(wu)極(ji)不穩定(ding)，容(rong)易腐化(hua)而產生(sheng)(sheng)(sheng)(sheng)惡(e)臭。細(xi)菌和病原體(ti)以生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)(wu)(wu)水(shui)中有(you)(you)機(ji)(ji)物(wu)為營養而大量繁殖，可導致傳(chuan)(chuan)染(ran)(ran)病蔓延流行(xing)。因(yin)此(ci)，生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)(wu)(wu)水(shui)排放前(qian)必須(xu)進行(xing)處(chu)理。

常見生活污水處理流程如下：