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　　廢水類型：食品加工廢水

　　廢水特性：食(shi)(shi)(shi)品(pin)(pin)(pin)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)廢(fei)(fei)水(shui)(shui)包(bao)括谷類(lei)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)廢(fei)(fei)水(shui)(shui)、飲料生產(chan)(chan)廢(fei)(fei)水(shui)(shui)、水(shui)(shui)產(chan)(chan)品(pin)(pin)(pin)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)廢(fei)(fei)水(shui)(shui)、肉類(lei)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)廢(fei)(fei)水(shui)(shui)及釀酒工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)廢(fei)(fei)水(shui)(shui)等。由于(yu)大(da)多(duo)數的(de)(de)食(shi)(shi)(shi)品(pin)(pin)(pin)工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)在加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)過程中需要大(da)量(liang)(liang)用水(shui)(shui),所以食(shi)(shi)(shi)品(pin)(pin)(pin)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)廢(fei)(fei)水(shui)(shui)排(pai)(pai)(pai)放(fang)的(de)(de)廢(fei)(fei)水(shui)(shui)量(liang)(liang)很大(da),是我(wo)國水(shui)(shui)源(yuan)污(wu)染大(da)戶(hu)之(zhi)一(yi),食(shi)(shi)(shi)品(pin)(pin)(pin)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)廢(fei)(fei)水(shui)(shui)COD排(pai)(pai)(pai)放(fang)量(liang)(liang)占工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)廢(fei)(fei)水(shui)(shui)COD總排(pai)(pai)(pai)放(fang)量(liang)(liang)的(de)(de)110/,居輕工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)行業(ye)(ye)(ye)第(di)二位。食(shi)(shi)(shi)品(pin)(pin)(pin)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)主要原材料是農、漁、牧、林業(ye)(ye)(ye)產(chan)(chan)品(pin)(pin)(pin),來源(yuan)十分(fen)(fen)廣(guang)泛(fan),且制品(pin)(pin)(pin)種(zhong)類(lei)繁多(duo),所以其排(pai)(pai)(pai)出的(de)(de)食(shi)(shi)(shi)品(pin)(pin)(pin)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)廢(fei)(fei)水(shui)(shui)水(shui)(shui)質成分(fen)(fen)復雜,水(shui)(shui)質惡劣(lie),若直接排(pai)(pai)(pai)人水(shui)(shui)體,對環境(jing)的(de)(de)危害(hai)十分(fen)(fen)嚴(yan)重。因(yin)此(ci),處理(li)好食(shi)(shi)(shi)品(pin)(pin)(pin)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)廢(fei)(fei)水(shui)(shui)對于(yu)環境(jing)的(de)(de)保護和人類(lei)的(de)(de)健康具有(you)重要意義。

　　處理工藝說明：食(shi)品加工(gong)(gong)廢水的處(chu)(chu)(chu)(chu)理(li)(li)(li)按作用(yong)原理(li)(li)(li)可(ke)分為(wei):物理(li)(li)(li)處(chu)(chu)(chu)(chu)理(li)(li)(li)法(fa)(fa)(fa)、化(hua)學處(chu)(chu)(chu)(chu)理(li)(li)(li)法(fa)(fa)(fa)和生(sheng)(sheng)物處(chu)(chu)(chu)(chu)理(li)(li)(li)法(fa)(fa)(fa)。每一(yi)種(zhong)(zhong)方法(fa)(fa)(fa)又(you)包(bao)括多種(zhong)(zhong)工(gong)(gong)藝(yi)(yi)。物理(li)(li)(li)處(chu)(chu)(chu)(chu)理(li)(li)(li)法(fa)(fa)(fa)有篩(shai)濾(lv)、撇除(chu)、調(diao)節、沉淀、氣(qi)浮(fu)、過濾(lv)、微濾(lv)、離(li)(li)心分離(li)(li)等,前五(wu)種(zhong)(zhong)工(gong)(gong)藝(yi)(yi)主(zhu)要用(yong)于預處(chu)(chu)(chu)(chu)理(li)(li)(li)或一(yi)級處(chu)(chu)(chu)(chu)理(li)(li)(li),后三種(zhong)(zhong)工(gong)(gong)藝(yi)(yi)主(zhu)要用(yong)于深度處(chu)(chu)(chu)(chu)理(li)(li)(li);化(hua)學處(chu)(chu)(chu)(chu)理(li)(li)(li)法(fa)(fa)(fa)有中和法(fa)(fa)(fa)、混凝(ning)法(fa)(fa)(fa)、電解法(fa)(fa)(fa)、氧化(hua)還原法(fa)(fa)(fa)、離(li)(li)子交換法(fa)(fa)(fa)、膜分離(li)(li)法(fa)(fa)(fa)等;生(sheng)(sheng)物處(chu)(chu)(chu)(chu)理(li)(li)(li)工(gong)(gong)藝(yi)(yi)包(bao)括好氧生(sheng)(sheng)物處(chu)(chu)(chu)(chu)理(li)(li)(li)工(gong)(gong)藝(yi)(yi)、厭氧生(sheng)(sheng)物處(chu)(chu)(chu)(chu)理(li)(li)(li)工(gong)(gong)藝(yi)(yi)、穩定塘工(gong)(gong)藝(yi)(yi)、土(tu)地處(chu)(chu)(chu)(chu)理(li)(li)(li)工(gong)(gong)藝(yi)(yi)和由上(shang)述工(gong)(gong)藝(yi)(yi)相結(jie)合而成的綜合生(sheng)(sheng)物處(chu)(chu)(chu)(chu)理(li)(li)(li)工(gong)(gong)藝(yi)(yi)。而根據食(shi)品加工(gong)(gong)廢水BOD、COD值高等特點,國內外(wai)廣泛采用(yong)的方法(fa)(fa)(fa)是生(sheng)(sheng)物處(chu)(chu)(chu)(chu)理(li)(li)(li)法(fa)(fa)(fa)。