生活污水處理工程

生(sheng)活污(wu)水(shui)(shui)(shui)(shui)是(shi)居(ju)民日常生(sheng)活中排出的(de)(de)廢水(shui)(shui)(shui)(shui)，主要(yao)來源于居(ju)住建(jian)筑和(he)公共(gong)(gong)建(jian)筑，如住宅、機(ji)關、學(xue)校、醫院、商店(dian)、公共(gong)(gong)場所及工業企業衛生(sheng)間(jian)等(deng)。生(sheng)活污(wu)水(shui)(shui)(shui)(shui)所含的(de)(de)污(wu)染(ran)(ran)物(wu)(wu)(wu)主要(yao)是(shi)有機(ji)物(wu)(wu)(wu)(如蛋白質、碳水(shui)(shui)(shui)(shui)化合物(wu)(wu)(wu)、脂肪、尿素、氨氮等(deng)) 和(he)大量病(bing)原微生(sheng)物(wu)(wu)(wu)(如寄生(sheng)蟲卵和(he)腸(chang)道傳染(ran)(ran)病(bing)毒(du)等(deng))。存在于生(sheng)活污(wu)水(shui)(shui)(shui)(shui)中的(de)(de)有機(ji)物(wu)(wu)(wu)極不穩定(ding)，容易腐化而產(chan)生(sheng)惡臭。細菌和(he)病(bing)原體以生(sheng)活污(wu)水(shui)(shui)(shui)(shui)中有機(ji)物(wu)(wu)(wu)為營養(yang)而大量繁殖(zhi)，可(ke)導致(zhi)傳染(ran)(ran)病(bing)蔓延流行。因此，生(sheng)活污(wu)水(shui)(shui)(shui)(shui)排放前(qian)必須(xu)進(jin)行處理。

常見生活污水處理流程如下：