生活污水處理工程

生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)是(shi)(shi)居民日常(chang)生(sheng)(sheng)(sheng)活(huo)中(zhong)(zhong)排(pai)(pai)出的廢水(shui)，主(zhu)要來源于居住(zhu)建筑(zhu)和(he)(he)公(gong)共(gong)建筑(zhu)，如住(zhu)宅、機(ji)(ji)關、學校、醫(yi)院、商(shang)店(dian)、公(gong)共(gong)場所及工(gong)業企業衛生(sheng)(sheng)(sheng)間等。生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)所含的污(wu)(wu)染(ran)物(wu)主(zhu)要是(shi)(shi)有(you)機(ji)(ji)物(wu)(如蛋白質、碳水(shui)化合(he)物(wu)、脂(zhi)肪、尿素、氨(an)氮等) 和(he)(he)大(da)量病(bing)原(yuan)微生(sheng)(sheng)(sheng)物(wu)(如寄生(sheng)(sheng)(sheng)蟲卵和(he)(he)腸(chang)道傳(chuan)染(ran)病(bing)毒等)。存在于生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)中(zhong)(zhong)的有(you)機(ji)(ji)物(wu)極(ji)不穩(wen)定，容易腐(fu)化而(er)(er)產生(sheng)(sheng)(sheng)惡臭。細菌和(he)(he)病(bing)原(yuan)體以生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)中(zhong)(zhong)有(you)機(ji)(ji)物(wu)為營養而(er)(er)大(da)量繁殖，可導致傳(chuan)染(ran)病(bing)蔓延(yan)流(liu)行。因此(ci)，生(sheng)(sheng)(sheng)活(huo)污(wu)(wu)水(shui)排(pai)(pai)放前必須進(jin)行處理。

常見生活污水處理流程如下：