摘要：某(mou)大豆綜合加工(gong)(gong)(gong)(gong)企業(ye)廢水(shui)(shui)再生(sheng)(sheng)(sheng)利用(yong)(yong)工(gong)(gong)(gong)(gong)程(cheng)包括(kuo)二級(ji)處理(li)和深(shen)度處理(li)工(gong)(gong)(gong)(gong)程(cheng)，二級(ji)處理(li)采(cai)(cai)用(yong)(yong)無(wu)機膜(mo)分離(li)預處到(dao)氣浮／生(sheng)(sheng)(sheng)物氧化工(gong)(gong)(gong)(gong)藝，深(shen)度處理(li)采(cai)(cai)用(yong)(yong)二級(ji)曝氣生(sheng)(sheng)(sheng)物濾(lv)池／微絮(xu)凝直(zhi)流過濾(lv)工(gong)(gong)(gong)(gong)藝，出水(shui)(shui)達到(dao)《城市污水(shui)(shui)再生(sheng)(sheng)(sheng)利用(yong)(yong)工(gong)(gong)(gong)(gong)業(ye)用(yong)(yong)水(shui)(shui)水(shui)(shui)質(zhi)》(GB／T 19923-2005)中冷卻用(yong)(yong)水(shui)(shui)敞開式(shi)循環冷卻水(shui)(shui)系統補(bu)充(chong)水(shui)(shui)水(shui)(shui)質(zhi)標準(zhun)，回(hui)用(yong)(yong)為生(sheng)(sheng)(sheng)產車(che)問敞開式(shi)循環冷卻水(shui)(shui)系統補(bu)充(chong)用(yong)(yong)水(shui)(shui)及廠區綠(lv)化用(yong)(yong)水(shui)(shui)。

關鍵詞：大(da)豆生產廢水； 無(wu)機膜(mo)分(fen)離； 曝氣(qi)生物濾池； 微絮凝直流過濾

天津某大豆生產企業大豆綜合加工能力為150×10⁴ t／a，排放廢水主要包括油脂精煉車間排放的堿煉洗滌廢水(150 m³／d)和油浸出車間排放的廢水(770 m³／d)，具體水質指標見表1。為了提高廢水綜合利用效率，擬投資680萬元建設廢水回收再利用工程，設計規模為1 500 m³／a。建設內容包括二級處理和深度處理工程兩部分：二級處理工程內容包括調節池、水解酸化池、接觸氧化池、浮渣池、沉淀池、鼓風機房、污水泵房等，占地面積約1 617 m²。深度處理工程內容包括集水池、曝氣生物濾池、中間水池、反洗水池、風機房、消毒間等，占地面積約105m²。最終出水執(zhi)行《城市污水再生利用工業用水水質》(GB／T 19923--2005)中(zhong)冷(leng)卻(que)(que)用水敞開式循環冷(leng)卻(que)(que)水系(xi)統補充水標準。

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