生活污水處理工程

生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)是居民日常(chang)生(sheng)(sheng)(sheng)(sheng)活(huo)中排出的廢水(shui)(shui)，主要來源(yuan)于(yu)居住(zhu)建筑和(he)(he)公(gong)共建筑，如(ru)住(zhu)宅、機關、學校(xiao)、醫院、商(shang)店、公(gong)共場所(suo)(suo)及工業企業衛生(sheng)(sheng)(sheng)(sheng)間等。生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)所(suo)(suo)含的污(wu)染(ran)物主要是有機物(如(ru)蛋(dan)白質(zhi)、碳水(shui)(shui)化合物、脂肪(fang)、尿素、氨氮等) 和(he)(he)大量(liang)病原(yuan)微(wei)生(sheng)(sheng)(sheng)(sheng)物(如(ru)寄生(sheng)(sheng)(sheng)(sheng)蟲(chong)卵和(he)(he)腸道傳染(ran)病毒等)。存在于(yu)生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)中的有機物極不穩定(ding)，容易腐化而產生(sheng)(sheng)(sheng)(sheng)惡臭。細菌和(he)(he)病原(yuan)體以生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)中有機物為營養而大量(liang)繁殖，可導(dao)致傳染(ran)病蔓延流(liu)行。因(yin)此，生(sheng)(sheng)(sheng)(sheng)活(huo)污(wu)水(shui)(shui)排放前必須進行處理。

常見生活污水處理流程如下：