生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)(shui)是居民日常生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)中(zhong)排出的廢水(shui)(shui)，主要來(lai)源(yuan)于(yu)居住建(jian)(jian)筑和公(gong)共建(jian)(jian)筑，如(ru)住宅、機(ji)關、學校、醫院、商店、公(gong)共場(chang)所及工業企業衛生(sheng)(sheng)(sheng)(sheng)(sheng)間(jian)等。生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)(shui)所含(han)的污染(ran)物主要是有(you)機(ji)物(如(ru)蛋白質(zhi)、碳水(shui)(shui)化合物、脂肪、尿素、氨氮等) 和大量病原微(wei)生(sheng)(sheng)(sheng)(sheng)(sheng)物(如(ru)寄生(sheng)(sheng)(sheng)(sheng)(sheng)蟲卵和腸道傳染(ran)病毒(du)等)。存(cun)在于(yu)生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)(shui)中(zhong)的有(you)機(ji)物極(ji)不穩定，容(rong)易腐化而(er)產(chan)生(sheng)(sheng)(sheng)(sheng)(sheng)惡臭。細菌和病原體以(yi)生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)(shui)中(zhong)有(you)機(ji)物為營養而(er)大量繁殖，可導致(zhi)傳染(ran)病蔓延(yan)流(liu)行(xing)。因(yin)此，生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)(shui)排放前必須進行(xing)處理。

常見生活污水處理流程如下：