UBF处理垃圾渗滤液的中试研究

Pilot experiment study of landfill leachate using UBF process

采用复合厌氧反应器UBF(UASB与AF复合反应器)对垃圾渗滤液进行了处理．结果表明:在温度15．3- 35．2℃,水力停留时间为6 d条件下,当进水CODCr质量浓度为5 431—8 723 mg／L、BOD5质量浓度为 1 633．5～3 124．2 mg/L时,CODCr、BOD5去除率分别为70．6％-73．9％和74．5％～78．1％．在冬季8～15℃的低温条件下,水力停留时间仍为6 d,通过外加污泥,可使CODCr、BOD5的去除率分别保持在70％、75％左右．

The landfill leachate is treated by combination anaerobic reactor UBF. The results show that under the conditions of which the temperature is 15.3 - 35.2℃ and HRT is 6 d, the removal efficiencies of CODe, and BODs are 70.6% -73.9% and 74.5% - 78.1%, respectively when CODe,. concentration of inlet ranges is 5 431 - 8 723 mg/L and BOD8 is 1 633.5 - 3 124.2 mg/L. The removal efficiencies of CODcr and BOD5 are still 70% and 75%, respectively, by putting sludge into the reactor when the temperature is 8 - 15℃ and HRT is 6 d in winter.