垃圾填埋场对周边土壤性质的影响

Influence of Landfill on the Properties of Surrounding Soil

垃圾填埋是我国城市垃圾的主要处理方式,垃圾填埋后产生的渗滤液,通过渗透、迁移、扩散的作用,对周边的土壤环境造成一定的影响,导致周边土壤理化性质发生变化。通过对垃圾场周边土壤各项性质影响的分析发现,垃圾填埋场周边土壤性质受到各种因素的影响,尤其是渗滤液性质、周边土壤性质、地形、盛行风向等,使垃圾填埋场周边的土壤性质空间特征重新分布,而且垃圾填埋场的极端土壤环境创造出特殊的微生物生态,可以将垃圾场作为特殊微生物选育场,为垃圾的微生物处理提供微生物种源,也为今后垃圾填埋场周边土壤污染防治提供科学依据。

Landfill is the main treatment method of municipal solid waste in China.The leachate produced after landfill has a certain impact on the surrounding soil environment through the role of infiltration,migration and diffusion,resulting in changes in the physical and chemical properties of the surrounding soil.Through the analysis of the influence of various properties of the soil around the landfill site,it is found that the influence of the landfill site on the properties of the surrounding soil is affected by various factors,especially the properties of leachate,the properties of the surrounding soil,topography,prevailing wind direction,etc.,which makes the spatial characteristics of the soil around the landfill site redistributed,and the extreme soil environment of the landfill site creates special micro life In terms of material ecology,the waste dump can be used as a special microbial breeding site to provide microbial provenance for the microbial treatment of waste in the future and provide scientific basis for the prevention and control of soil pollution around the landfill.