生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)是居民日常(chang)生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)中排出(chu)的廢水(shui)，主要(yao)來源于居住建筑(zhu)和公共(gong)(gong)建筑(zhu)，如(ru)住宅、機(ji)關(guan)、學校、醫院、商店、公共(gong)(gong)場所及工業(ye)(ye)企業(ye)(ye)衛生(sheng)(sheng)(sheng)(sheng)(sheng)間(jian)等。生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)所含的污染物(wu)(wu)主要(yao)是有機(ji)物(wu)(wu)(如(ru)蛋白質、碳水(shui)化合物(wu)(wu)、脂肪、尿素、氨氮等) 和大(da)量(liang)病(bing)(bing)(bing)原微生(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(如(ru)寄(ji)生(sheng)(sheng)(sheng)(sheng)(sheng)蟲(chong)卵和腸道(dao)傳(chuan)染病(bing)(bing)(bing)毒等)。存在于生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)中的有機(ji)物(wu)(wu)極不穩(wen)定(ding)，容易腐化而產生(sheng)(sheng)(sheng)(sheng)(sheng)惡(e)臭。細菌和病(bing)(bing)(bing)原體以生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)中有機(ji)物(wu)(wu)為營養而大(da)量(liang)繁殖，可導致(zhi)傳(chuan)染病(bing)(bing)(bing)蔓延流行。因此，生(sheng)(sheng)(sheng)(sheng)(sheng)活(huo)污水(shui)排放前必須進行處理(li)。

常見生活污水處理流程如下：