生活污水處理工程

生(sheng)(sheng)(sheng)活污(wu)水是(shi)居民日常(chang)生(sheng)(sheng)(sheng)活中(zhong)排(pai)出的廢水，主要(yao)(yao)來源于居住建(jian)筑(zhu)(zhu)和公(gong)共(gong)建(jian)筑(zhu)(zhu)，如(ru)住宅、機(ji)關(guan)、學校、醫(yi)院、商店、公(gong)共(gong)場(chang)所(suo)及工業企業衛生(sheng)(sheng)(sheng)間等。生(sheng)(sheng)(sheng)活污(wu)水所(suo)含的污(wu)染物(wu)(wu)主要(yao)(yao)是(shi)有機(ji)物(wu)(wu)(如(ru)蛋(dan)白質、碳水化(hua)合物(wu)(wu)、脂肪、尿素、氨(an)氮(dan)等) 和大(da)量病(bing)(bing)原(yuan)微生(sheng)(sheng)(sheng)物(wu)(wu)(如(ru)寄(ji)生(sheng)(sheng)(sheng)蟲卵和腸道傳染病(bing)(bing)毒等)。存在(zai)于生(sheng)(sheng)(sheng)活污(wu)水中(zhong)的有機(ji)物(wu)(wu)極不穩定，容(rong)易腐化(hua)而產(chan)生(sheng)(sheng)(sheng)惡臭。細菌和病(bing)(bing)原(yuan)體以(yi)生(sheng)(sheng)(sheng)活污(wu)水中(zhong)有機(ji)物(wu)(wu)為營養(yang)而大(da)量繁殖(zhi)，可導致傳染病(bing)(bing)蔓延流行。因此，生(sheng)(sheng)(sheng)活污(wu)水排(pai)放前必(bi)須(xu)進行處(chu)理。

常見生活污水處理流程如下：