褐铁矿和白云石对垃圾渗滤液厌氧消化增强作用的初步研究  

The enhancement of anaerobic digestion of landfill leachate by limonite and dolomite

作　　者：庆承松[1,2] 韦玲[1,2] 陈天虎[1,2] 周跃飞[1,2] 王进[1,2] 岳正波[1,2] 

机构地区：[1]合肥工业大学纳米矿物与环境材料实验室 [2]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《岩石矿物学杂志》2014年第2期365-369,共5页Acta Petrologica et Mineralogica

基　　金：973预研项目(2011CB411904);国家自然科学基金资助项目(41130206,41372347,41372046)

摘　　要：垃圾渗滤液治理一直是城市生活垃圾卫生填埋场的难题。能否利用矿物-微生物交互作用提高垃圾渗滤液有机污染物厌氧转化的效率是值得研究的问题。本文设置4组厌氧生物反应器(分别为只添加褐铁矿或者白云石、同时添加褐铁矿和白云石以及不添加矿物的空白组),考察添加褐铁矿、白云石对垃圾渗滤液厌氧消化的影响。实验结果表明,厌氧生化反应12 d时,添加了褐铁矿和白云石的反应器中COD去除率均达到80%以上,而空白对照组COD去除率仅为50%;4组反应器中溶液pH值变化表明,矿物的存在提高了溶液的pH值0.5左右;4组反应器中氨氮含量变化不大,也没有表现出明显差异。研究认为褐铁矿或白云石矿物在垃圾渗滤液中有机物的厌氧消化过程中起到了重要促进作用。研究结果为提高垃圾渗滤液厌氧处理效率提供了一个可供参考的方法。Landfill leachate has encountered the severe treatment problem.Using cheap mineral materials as accelerants for the decomposition of organic pollutants in leachate is feasible.This study focused mainly on the efficiencies of anaerobic digestion of landfill leachate with the mediations of limonite and/or dolomite.Four groups of anaerobic bioreactors （control,limonite,dolomite,limonite with dolomite） were set.After anaerobic digesting for 19 days,the COD removal efficiencies for limonite and/or dolomite addition experiments were all over 80 ％,while the COD removal efficiency for control experiment was only 50 ％.The pH value in the control experiment changed insignificantly,while in mineral addition experiments there had obvious promotions （～ 0.5）.The ammonia content changed little and did not show significant differences among experiments.This study demonstrates that the presence of limonite and/or dolomite minerals can promote the anaerobic digestion of organic matter in landfill leachate.The results obtained by the authors provide a feasible method for promoting the efficiency of landfill leachate treatment.

关 键 词：褐铁矿 白云石 垃圾渗滤液 厌氧消化 

分 类 号：P579[天文地球—矿物学] P578.497[天文地球—地质学]