准好氧矿化垃圾反应床＋超声／芬顿联用技术处理垃圾渗滤液

针对垃圾渗滤液污染物浓度高、可生化性差等特点，采用准好氧矿化垃圾反应床＋超声／芬顿联用技术对垃圾渗滤液进行预处理。准好氧矿化垃圾床处理后渗滤液中COD、氨氮、总磷、色度的去除率分别为80％、85％、92％和85％。通过单因素实验和正交实验，确定了超声／Fenton法最佳工艺条件。经该组合工艺后，渗滤液中COD、氨氮、总磷和色度的最高去除率分别可达96％、86％、94％和95％，且出水无臭，颜色为淡黄色，BOD5／COD从0．16增至0．35左右，可生化性基本满足后续生物处理需要，且COD、总磷这2个指标达到《生活垃圾填埋场污染控制标准》（GB16889—2008）规定的排放标准。

Treatment of landfill leachate by combined semi-aerobic aged refuse bioreactor and ultrasound//Fenton processes

According to landfill leachate＇ s characteristics of high concentration of pollutants, poor bio- chemical degradability, etc, semi-aerobic aged refuse bioreaetor and ultrasound/Fenton process were applied to treat landfill leachate. The removal rates of chemical oxygen demand（COD） , ammonia nitrogen（NH3-N） , total phosphorus（TP） and eolorimetry treated by semi-aerobic aged refuse bioreactor were 80% , 85% , 92% , 85% , respectively. The optimal technical conditions of uhrasound/Fenton process were discovered by single factor and orthogonal experiments. Satisfying treatment effect of the total removal rate of landfill leachate by combined semi- aerobic aged refuse bioreaetor and uhrasound/Fenton process could be achieved. The highest removal rates of COD, NH3-N, TP and eolorimetry were 96% , 86% , 94% and 95% , respectively. The final effluent was ino- dorous with color of pale yellow. Its BOD5/CODincreased from 0. 16 to 0.35, which met follow-up biological treatment. The effluent of COD, TP could meet the Standard for Pollution Control on the Landfill Site of Munici- pal Solid Waste （GB 16889-2008）.