UASBF反应器处理垃圾渗滤液的试验研究

Experimental studies of UASBF reactor for the treatment of landfill leachate

研究了上流式厌氧复合床反应器（UASBF）处理垃圾渗滤液的启动期、负荷提高期、运行期的处理效果及CODCr负荷、pH、碱度对反应器运行的影响.结果表明,启动期最佳启动温度在35±1℃,进水pH6.8,CODCr浓度1000～1200 mg.L-1,水力停留时间（HRT）48h,容积负荷为0.5kgCODcr·m-3·d-1.提高期和运行期容积负荷为10kgCODcr.m-3.d-1,CODcr去除率为71.5%,氨氮去除率为57.5%,总磷去除率为64.8%,悬浮物达到去除率为55%.

We studied the efficiency of the upflow anaerobic sludge bed filtration （UASBF） reactor in treating landfill leachate in the phases of start-up, load increase and steady function. The effects of chemical oxygen demand （CODcr）, pH and alkalinity on the reactor running were also discussed. The results showed that the optimal temperature was （35±1）℃; pH was 6.8; CODcr concentration was 1000 to 1200 mg·L-l; hydraulic retention time （HRT） was 48 h; volume load was 0.5 kgCODcr·m-3-dl in the phase of start-up. The CODcr load of the increase and steady function phases was 10 kg-m3·d-1. The removal rates for CODcr, NH4＋-N, total phosphorus （TP） and suspended substance （SS） were 71.5%, 57.5%, 64.8% and 55%, respectively.