食(shi)品工(gong)業廢(fei)(fei)水來源廣泛,制品種類(lei)繁多,排除廢(fei)(fei)水的(de)水量、水質差(cha)異很大(da)。其廢(fei)(fei)水的(de)特點是有機物(wu)(wu)質和懸浮物(wu)(wu)含量(liang)高,易腐敗,一般無大的毒性。食品加工廢(fei)水處(chu)(chu)理(li)除按水質特點(dian)進行(xing)適(shi)當預處(chu)(chu)理(li)外,一般均(jun)宜采用(yong)(yong)生(sheng)物(wu)(wu)處(chu)(chu)理(li)。如對出水水質要求很(hen)高或因廢(fei)水中有機物(wu)(wu)含量(liang)很(hen)高,可(ke)采用(yong)(yong)兩(liang)級曝氣池或兩(liang)級生(sheng)物(wu)(wu)濾池,或多(duo)級生(sheng)物(wu)(wu)轉盤,或聯合使用(yong)(yong)兩(liang)種生(sheng)物(wu)(wu)處(chu)(chu)理(li)裝置,也(ye)可(ke)采用(yong)(yong)厭(yan)氧-需氧串(chuan)聯的生物處理系統。