粉煤灰和活性污泥对好氧填埋渗滤液组分的影响  

Impact of Fly Ash and Activated Sludge on Leachate Component of Aerobic Landfill

作　　者：董军[1] 赵勇胜[1] 宗芳[1] 韩融[1] 刘莹莹[1] 

机构地区：[1]吉林大学环境与资源学院,长春130026

出　　处：《环境科学与技术》2006年第4期69-70,81,共3页Environmental Science & Technology

基　　金：国家自然科学基金项目(50478006)

摘　　要：通过在好氧反应器中添加粉煤灰和活性污泥来加速固体废物的降解。实验结果表明,添加粉煤灰不但改善了氧气扩散,而且增强了反应器对各种污染物的去除能力,对渗滤液中COD、NH4+、NO3-的去除率分别达到75%、68%和65%以上;添加活性污泥引入了一定量的微生物,也有利于固体废物的降解,渗滤液中COD、NH4+、NO3-的去除率分别达到了90%、65%和77%。因此,通过添加粉煤灰和活性污泥来加速固体废物降解是可行的。Fly ash and activated sludge were added to enhance municipal solid waste (MSW) degradation. Results indicated that addition of fly ash not only improved dispersion of oxygen, but also improved removal efficiency of pollutants, with removal efficiency of COD, NH4+ and NO3- in leachate over 75%, 68% and 65% respectively. Inoculation of microbes by adding activated sludge was favourable to degrade MSW, with removal efficiency of COD, NH4+ and NO3- up to 90%, 65% and 77% respectively. It is feasible to accelerate degradation of MSW through adding fly ash and activated sludge.

关 键 词：粉煤灰 活性污泥 好氧 城市固体废物 

分 类 号：X705[环境科学与工程—环境工程]