| 厌氧膜生物反应器处理高浓度食品废水的应用 |
| 摘要点击 2966 全文点击 3041 投稿时间：1999-03-05 |
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| 中文关键词 厌氧膜生物反应器 食品废水 废水处理 稳定性 |
| 英文关键词 anaerobic membrane bioreactor food wastewater wasterwater treatment stability |
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| 中文摘要 |
| 采用由完全混合的厌氧生物反应器和板框式超滤膜组件构成的厌氧膜生物反应器对高浓度食品废水进行处理,考察了厌氧膜生物反应器的处理效果及其对负荷、水力停留时间等的稳定性。膜组件装填面积为0.64m2,膜材质为聚醚砜(PES),膜截留分子量为20000.结果表明,COD负荷在2～3kg/(m3·d)时,膜出水COD去除率可达80%～90%;当COD负荷超过4.5kg/(m3·d)时,混合液VFA 出现积累,COD去除率下降至70%.对SS、色度及细菌的去除率分别可达100%、98% 和99.9%.水力停留时间对厌氧膜生物反应器的处理效果有重要影响,水力停留时间应大于50h。 |
| 英文摘要 |
| A cross flow ultrafiltration membrane separation was applied to anaerobic process for treatment of a high concentration food wastewater. The UF unit used was a flat plate type of module in which eight sheets of PES membrane with total surface area of 0.64m2 was installed. The nominal molecular cut off size of the membrane was 20000 dalton. It was proved that the COD removal rate was 80%～90% at COD loading rate of 2～3kg/(m3·d) and 70%～80% at 4～5kg/(m3·d). This system had a high performance in removing SS, color and bacteria due to the membrane separation and the removal rate of 100%,98% and 99.9% was achieved respectively. The HRT of anaerobic reactor was found to have a important influence on the treatment effect and needed to be more than 50h. |
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