准好氧和厌氧填埋陈腐垃圾的稳定化特性

第32卷第4期2010年O8月土木建筑与环境工程JournalofCivil，Architectural&EnvironmentalEngineeringVo1．32No．4Aug．2010准好氧和厌氧填埋陈腐垃圾的稳定化特性张维，岳波，张增强，黄泽春，黄启飞，王(1．西北农林科技大学生命科学学院，陕西杨陵712100；2．中国环境科学研究院固体废物污染控制技术研究所，北京100012)琪摘要：比较了5a填埋龄准好氧和厌氧填埋体陈腐垃圾的挥发性固体(VS)、有机碳(TOC)和腐殖质等降解及稳定化指标。结果表明，陈腐垃圾中VS和TOc含量较新鲜垃圾显著降低，准好氧填埋体陈腐垃圾的VS和TOC含量低于厌氧填埋体1～2，但差异不显著；准好氧填埋体的表面沉降量显著高于厌氧填埋体(Pd0．05)，存在一定的负相关关系。渗滤液和清水回灌引起陈腐垃圾VS含量的差异不明显，但造成了填埋体表面明显的不均匀沉降。准好氧填埋体陈腐垃圾的BDM值与厌氧填埋体相近，且随距离导气管距离和填埋深度的增加逐渐升高，距离导气管距离越大，层间BDM值差异越大。此外，准好氧和厌氧填埋体陈腐垃圾的腐殖质提取率与HA／FA差异不明显。关键词：陈腐垃圾；VS；沉降量；BDM；腐殖质中图分类号：X705文献标志码：A文章编号：1674—4764(2010)O4—01l8—07StabilizationPropertiesofAged--refuseinSemi-。aerobicandAnaerobicLandfills(1．LifeSciencesCollege，NorthwestAgricultureandForestryUniversity，Yangling712100，Shanxi，P．R．China；2．ChineseResearchAcademyofEnvironmentalSciences，Beijing100012，P．R．China；)Abstract：Thestabilizationpropertiesofaged—refuseinfive—year—oldsemi—aerobicandanaerobiclandfillswerecompared，suchasvolatilesolid(VS)，tota1organiccarboncontent(TOC)，humicmatters，andSOon．ItwasfoundthatVSandTOCcontentinaged—refusewereobviously1owerthanthoseinfreshrefuseafterfiveyearsdisposa1．However，theVSandTOCcontentofaged—refuseinsemi—aerobiclandfillwereslightlylowerthananaerobicones，whilstthedifferencewasnotsignificant．Surfacesettlementsofsemi—aerobic1andfillswerehigherthanthatofanaerobicones(P<0．05)．Moreover，therewasnegativecorrelationbetweenVScontentandsurfacesettlements．BothleachateandwaterrecyclingmethodsdidnotleadtosignificantVScontentdifference，whileleachaterecyclingwouldcauseobviouslyunevensurfacesettlement．Biologicaldegradablematerials(BDM)valueofaged-refuseinsemi—aerobiclandfillandanaerobiconewassimilar．Furthermore，BDMvalueincreasedwiththeincreaseofairpipedistanceanddepth．Thegreatertheairpipedistanceis，thebiggerthedifferenceofBDMvaluebetweenthelayersis．Inaddition。tota1extractionratiosofhumicmattersandHA／FAinsemi—aerobicandanaerobiclandfillaged—refusehadnosignificantdifferences．Keywords：Aged—refuse；VolatileSoild；SurfaceSettlement；BiologicalDegradableMateria