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　　廢水類型：預制菜污水

　　廢水特性：預(yu)制(zhi)菜(cai)(cai)(cai)污(wu)水(shui)(shui)(shui)(shui)(shui)(shui)包括(kuo)谷類(lei)加(jia)(jia)工(gong)廢(fei)水(shui)(shui)(shui)(shui)(shui)(shui)、飲料生(sheng)產廢(fei)水(shui)(shui)(shui)(shui)(shui)(shui)、水(shui)(shui)(shui)(shui)(shui)(shui)產品(pin)加(jia)(jia)工(gong)廢(fei)水(shui)(shui)(shui)(shui)(shui)(shui)、肉類(lei)加(jia)(jia)工(gong)廢(fei)水(shui)(shui)(shui)(shui)(shui)(shui)等。由(you)于大多數的食品(pin)工(gong)業(ye)在加(jia)(jia)工(gong)過(guo)程中需要大量(liang)用水(shui)(shui)(shui)(shui)(shui)(shui),所以預(yu)制(zhi)菜(cai)(cai)(cai)污(wu)水(shui)(shui)(shui)(shui)(shui)(shui)排放(fang)的廢(fei)水(shui)(shui)(shui)(shui)(shui)(shui)量(liang)很大,是我國水(shui)(shui)(shui)(shui)(shui)(shui)源污(wu)染大戶之一,預(yu)制(zhi)菜(cai)(cai)(cai)污(wu)水(shui)(shui)(shui)(shui)(shui)(shui)COD排放(fang)量(liang)占(zhan)工(gong)業(ye)廢(fei)水(shui)(shui)(shui)(shui)(shui)(shui)COD總排放(fang)量(liang)的110/,居輕工(gong)業(ye)行業(ye)第二位。食品(pin)加(jia)(jia)工(gong)的主要原材料是農、漁(yu)、牧(mu)、林業(ye)產品(pin),來源十(shi)分(fen)(fen)廣泛(fan),且(qie)制(zhi)品(pin)種(zhong)類(lei)繁多,所以其排出的預(yu)制(zhi)菜(cai)(cai)(cai)污(wu)水(shui)(shui)(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)(shui)(shui)質成分(fen)(fen)復(fu)雜,水(shui)(shui)(shui)(shui)(shui)(shui)質惡劣(lie),若直接排人水(shui)(shui)(shui)(shui)(shui)(shui)體,對環(huan)境(jing)的危害十(shi)分(fen)(fen)嚴重。因(yin)此,處理好預(yu)制(zhi)菜(cai)(cai)(cai)污(wu)水(shui)(shui)(shui)(shui)(shui)(shui)對于環(huan)境(jing)的保(bao)護(hu)和(he)人類(lei)的健(jian)康具有重要意義。

　　處理工藝說明：預(yu)制(zhi)菜污水的(de)處(chu)(chu)(chu)(chu)(chu)理(li)按(an)作用(yong)原理(li)可分(fen)(fen)為:物(wu)(wu)(wu)理(li)處(chu)(chu)(chu)(chu)(chu)理(li)法(fa)(fa)(fa)(fa)、化學處(chu)(chu)(chu)(chu)(chu)理(li)法(fa)(fa)(fa)(fa)和(he)生(sheng)(sheng)物(wu)(wu)(wu)處(chu)(chu)(chu)(chu)(chu)理(li)法(fa)(fa)(fa)(fa)。每一種(zhong)方法(fa)(fa)(fa)(fa)又包括多種(zhong)工(gong)(gong)藝(yi)(yi)(yi)。物(wu)(wu)(wu)理(li)處(chu)(chu)(chu)(chu)(chu)理(li)法(fa)(fa)(fa)(fa)有篩濾(lv)、撇除(chu)、調節、沉淀、氣(qi)浮、過濾(lv)、微濾(lv)、離心分(fen)(fen)離等,前五種(zhong)工(gong)(gong)藝(yi)(yi)(yi)主(zhu)要(yao)用(yong)于預(yu)處(chu)(chu)(chu)(chu)(chu)理(li)或一級(ji)處(chu)(chu)(chu)(chu)(chu)理(li),后三種(zhong)工(gong)(gong)藝(yi)(yi)(yi)主(zhu)要(yao)用(yong)于深度(du)處(chu)(chu)(chu)(chu)(chu)理(li);化學處(chu)(chu)(chu)(chu)(chu)理(li)法(fa)(fa)(fa)(fa)有中和(he)法(fa)(fa)(fa)(fa)、混(hun)凝法(fa)(fa)(fa)(fa)、電解法(fa)(fa)(fa)(fa)、氧(yang)化還原法(fa)(fa)(fa)(fa)、離子(zi)交換(huan)法(fa)(fa)(fa)(fa)、膜分(fen)(fen)離法(fa)(fa)(fa)(fa)等;生(sheng)(sheng)物(wu)(wu)(wu)處(chu)(chu)(chu)(chu)(chu)理(li)工(gong)(gong)藝(yi)(yi)(yi)包括好氧(yang)生(sheng)(sheng)物(wu)(wu)(wu)處(chu)(chu)(chu)(chu)(chu)理(li)工(gong)(gong)藝(yi)(yi)(yi)、厭氧(yang)生(sheng)(sheng)物(wu)(wu)(wu)處(chu)(chu)(chu)(chu)(chu)理(li)工(gong)(gong)藝(yi)(yi)(yi)、穩(wen)定塘工(gong)(gong)藝(yi)(yi)(yi)、土(tu)地處(chu)(chu)(chu)(chu)(chu)理(li)工(gong)(gong)藝(yi)(yi)(yi)和(he)由上述工(gong)(gong)藝(yi)(yi)(yi)相結(jie)合(he)而成的(de)綜合(he)生(sheng)(sheng)物(wu)(wu)(wu)處(chu)(chu)(chu)(chu)(chu)理(li)工(gong)(gong)藝(yi)(yi)(yi)。而根據(ju)預(yu)制(zhi)菜污水BOD、COD值高(gao)等特點,國內外廣泛采用(yong)的(de)方法(fa)(fa)(fa)(fa)是生(sheng)(sheng)物(wu)(wu)(wu)處(chu)(chu)(chu)(chu)(chu)理(li)法(fa)(fa)(fa)(fa)。