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◆工(gong)(gong)(gong)藝簡介(jie)乳(ru)制(zhi)(zhi)品廢水(shui)(shui)(shui)是(shi)煉(lian)乳(ru)、干酪(lao)、奶油(you)(you)(you)、乳(ru)制(zhi)(zhi)清(qing)涼飲料、冰激凌以及乳(ru)制(zhi)(zhi)品點心生(sheng)產(chan)過(guo)(guo)程(cheng)(cheng)中(zhong)排出的廢水(shui)(shui)(shui)。廢水(shui)(shui)(shui)主要來自容器及設備的清(qing)洗水(shui)(shui)(shui)，主要成(cheng)分含(han)有制(zhi)(zhi)品原(yuan)料。其(qi)中(zhong)牛奶加工(gong)(gong)(gong)廠含(han)有處理原(yuan)乳(ru)0.2%，BOD20-300mg/L， 污(wu)染較低(di)，而干酪(lao)、奶油(you)(you)(you)加工(gong)(gong)(gong)產(chan)廢水(shui)(shui)(shui)污(wu)染程(cheng)(cheng)度較高，COD達3000 mg/L, BOD全達2400mg/L含(han)總氮(N) 達90mg/L，總磷(P) 達16mg/L，含(han)油(you)(you)(you)脂達200 mg/L，懸浮物(wu)(wu)達600 mg/L,廢水(shui)(shui)(shui)中(zhong)原(yuan)料成(cheng)品如奶油(you)(you)(you)、煉(lian)乳(ru)應作為(wei)(wei)副產(chan)物(wu)(wu)盡量回收(shou)并(bing)在(zai)生(sheng)產(chan)過(guo)(guo)程(cheng)(cheng)中(zhong)減少其(qi)流(liu)失(shi)。排出的污(wu)水(shui)(shui)(shui)分別由(you)排水(shui)(shui)(shui)系統收(shou)集后(hou)(hou)，進(jin)入污(wu)水(shui)(shui)(shui)處理的格(ge)柵井，去(qu)(qu)除漂(piao)浮物(wu)(wu)及顆粒雜物(wu)(wu)后(hou)(hou)，進(jin)入預沉(chen)及調節池，進(jin)行(xing)污(wu)水(shui)(shui)(shui)大顆粒沉(chen)降及污(wu)水(shui)(shui)(shui)均(jun)值均(jun)量，再經液位控(kong)制(zhi)(zhi)儀傳遞信(xin)號，由(you)提(ti)升泵送至(zhi)A級(ji)生(sheng)物(wu)(wu)池在(zai)缺氧(yang)的狀態反(fan)硝(xiao)化(hua)(hua)均(jun)以污(wu)水(shui)(shui)(shui)有機(ji)物(wu)(wu)為(wei)(wei)碳源進(jin)行(xing)反(fan)硝(xiao)化(hua)(hua)，去(qu)(qu)除硝(xiao)態氮同時降低(di)有機(ji)物(wu)(wu)濃度，然(ran)后(hou)(hou)入流(liu)O級(ji)生(sheng)物(wu)(wu)接觸氧(yang)化(hua)(hua)池進(jin)行(xing)好(hao)氧(yang)生(sheng)化(hua)(hua)反(fan)應，在(zai)此(ci)絕大部分有機(ji)污(wu)染物(wu)(wu)通過(guo)(guo)生(sheng)物(wu)(wu)的同化(hua)(hua)合成(cheng)與異化(hua)(hua)分解得(de)以降解，殺滅水(shui)(shui)(shui)中(zhong)有害菌種后(hou)(hou)進(jin)行(xing)過(guo)(guo)濾處理方可回用。