生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)活污水(shui)(shui)是(shi)居民日常(chang)生(sheng)(sheng)(sheng)(sheng)活中排(pai)出的廢水(shui)(shui)，主要來源于(yu)居住建筑(zhu)和公(gong)共建筑(zhu)，如(ru)住宅、機關、學(xue)校、醫(yi)院、商店、公(gong)共場所(suo)及工業(ye)(ye)企(qi)業(ye)(ye)衛(wei)生(sheng)(sheng)(sheng)(sheng)間等。生(sheng)(sheng)(sheng)(sheng)活污水(shui)(shui)所(suo)含(han)的污染(ran)物(wu)(wu)主要是(shi)有機物(wu)(wu)(如(ru)蛋(dan)白質、碳(tan)水(shui)(shui)化合(he)物(wu)(wu)、脂肪、尿素(su)、氨(an)氮等) 和大(da)量(liang)病原微生(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(如(ru)寄(ji)生(sheng)(sheng)(sheng)(sheng)蟲(chong)卵和腸道傳(chuan)染(ran)病毒等)。存在于(yu)生(sheng)(sheng)(sheng)(sheng)活污水(shui)(shui)中的有機物(wu)(wu)極不(bu)穩(wen)定，容易腐化而產生(sheng)(sheng)(sheng)(sheng)惡臭。細菌和病原體以生(sheng)(sheng)(sheng)(sheng)活污水(shui)(shui)中有機物(wu)(wu)為(wei)營養而大(da)量(liang)繁(fan)殖，可導(dao)致傳(chuan)染(ran)病蔓延流行(xing)。因此(ci)，生(sheng)(sheng)(sheng)(sheng)活污水(shui)(shui)排(pai)放前必須進(jin)行(xing)處理。

常見生活污水處理流程如下：