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某简易污泥填埋场污染物调查与扩散迁移研究
引用本文:董志高,李磊,张春雷,付婷婷.某简易污泥填埋场污染物调查与扩散迁移研究[J].科学技术与工程,2014,14(32).
作者姓名:董志高  李磊  张春雷  付婷婷
作者单位:1. 南京南大岩土工程技术有限公司,南京,210012
2. 河海大学地球科学与工程学院,南京,210098
3. 河海大学环境学院,南京,210098
4. 南京佳的建筑设计事务所有限公司,南京,210008
基金项目:国家自然科学基金(51278172, 51108156); 江苏省自然科学基金(BK2012883)
摘    要:未经规范处理进行简易填埋处置的污泥对周围环境存在较大的污染风险。基于某简易污泥填埋场项目,通过对场地地貌及地质条件分析,从污泥、渗沥液、周围土壤、地下水四个方面出发进行污染物调查;并建立污染物Mn的扩散迁移模型,分析不同时间段Mn的扩散迁移规律。调查及模拟结果表明,污泥填埋场存在渗透性较好的沙砾石层,地下水水力联系条件良好,污染物易发生迁移扩散现象;大部分污染物对周边环境影响较小,少部分污染物指标超标;Mn在填埋场周围的地层中迁移速度较为显著,其污染范围在25年后可以达到距离1号坑约400 m的距离,为了防止扩散迁移可在地下水流向方向设置相应污染防治措施。

关 键 词:填埋场  污泥  污染物调查  扩散迁移
收稿时间:2014/6/20 0:00:00
修稿时间:2014/7/10 0:00:00

Study on Investigation, Diffusion and Migration of Pollutants in a Simple Sewage Sludge Landfill
Dong Zhi-gao,Li Lei,Zhang Chun-lei and Fu Ting-ting.Study on Investigation, Diffusion and Migration of Pollutants in a Simple Sewage Sludge Landfill[J].Science Technology and Engineering,2014,14(32).
Authors:Dong Zhi-gao  Li Lei  Zhang Chun-lei and Fu Ting-ting
Institution:College of Earth Sciences and Engineering,Hohai University,College of Environment,Hohai University,Nanjing W Architecture Design Firm CoLtd
Abstract:The disposal sewage sludge without standard treatment for simple landfill has a greater risk to surrounding environment. Base on a simple sewage sludge landfill project, through the analysis of topography and geological conditions, pollutants were investigated from sludge, leachate, surrounding soil and groundwater, Mn migration model was established, and its migration law was analyzed at different time. The results show that the existence of gravel layer makes a good contact condition of groundwater and the environment polluted; in addition to a small number of pollutants indicators exceeded the standard value, most pollutants had less impacted on the surrounding environment; Mn migration rate is more significant in the soil, the scope of its pollution can be achieved about 400meters from the 1st pit after 25 years, and the corresponding pollution control measures can be adopted in the direction of groundwater flow.
Keywords:landfill  sewage sludge  pollutants investigation  diffusion and migration
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