生活污水處理工程

生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水是居(ju)民日常生(sheng)(sheng)(sheng)活(huo)(huo)中(zhong)排(pai)(pai)出的廢水，主(zhu)要來源于居(ju)住建(jian)筑和公共建(jian)筑，如(ru)住宅(zhai)、機(ji)關、學校、醫(yi)院、商店、公共場所及(ji)工業企業衛生(sheng)(sheng)(sheng)間(jian)等。生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水所含的污(wu)(wu)染(ran)物(wu)(wu)主(zhu)要是有(you)機(ji)物(wu)(wu)(如(ru)蛋(dan)白質、碳(tan)水化(hua)合物(wu)(wu)、脂(zhi)肪、尿素(su)、氨氮等) 和大(da)量病(bing)原(yuan)微生(sheng)(sheng)(sheng)物(wu)(wu)(如(ru)寄生(sheng)(sheng)(sheng)蟲卵(luan)和腸(chang)道傳染(ran)病(bing)毒等)。存(cun)在于生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水中(zhong)的有(you)機(ji)物(wu)(wu)極不穩定，容易腐化(hua)而產生(sheng)(sheng)(sheng)惡臭。細(xi)菌和病(bing)原(yuan)體以生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水中(zhong)有(you)機(ji)物(wu)(wu)為營(ying)養而大(da)量繁(fan)殖，可導致傳染(ran)病(bing)蔓延流(liu)行。因(yin)此，生(sheng)(sheng)(sheng)活(huo)(huo)污(wu)(wu)水排(pai)(pai)放前必須(xu)進(jin)行處理。

常見生活污水處理流程如下：