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首页> 外文学位 >Characterization of leachate from two municipal waste disposal landfills in Puerto Rico and its possible impact on nearby soils and groundwater wells.
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Characterization of leachate from two municipal waste disposal landfills in Puerto Rico and its possible impact on nearby soils and groundwater wells.

机译：波多黎各两个市政垃圾填埋场渗滤液的特性及其对附近土壤和地下水井的影响。

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摘要

Municipal solid waste landfills (MSWL) are currently the predominant solid waste disposal practice in Puerto Rico. In these landfills, runoff and rainwater combine with solid waste degradation products to produce leachate. Landfill leachate is rich in organic and inorganic substances, including heavy metal ions.;Although these chemical species represent a public health and environmental hazard, particularly when they reach surface and groundwater systems, no data regarding the type and concentration of heavy metals in leachates from landfills in Puerto Rico was available. At the time this study began, the PREQB did not have data on leachate composition and its impact on nearby soil and groundwater quality for any landfill in PR. Moreover, this agency used data from US landfills for decision-making with regards to landfill problems in Puerto Rico. It was thus a priority to document this information for optimal landfill operation, and to determine potential impact on nearby soil and groundwater wells. The results presented in this dissertation are aimed at addressing this need.;Through this study, the following goals were attained: (1) methods and procedures for sampling and analyzing metals in landfill leachates were designed and implemented; (2) a detailed analysis of selected parameters, using analytic techniques approved by USEPA (U.S. Environmental Protection Agency) were performed; (3) the contribution of these parameters on leachate composition was assessed; (4) the leachate composition of samples obtained at two distinct locations within a specific landfill (one containing metal scraps and the other containing domestic wastes) was compared; (5) the metal composition of leachate from these two landfills was compared with that reported in other studies; and (6) the impact of the Toa Baja landfill leachate on nearby soil and groundwater quality was assessed.
机译：目前，市政固体废物填埋场（MSWL）是波多黎各主要的固体废物处置方法。在这些垃圾填埋场中，径流和雨水与固体废物降解产物结合在一起产生渗滤液。垃圾填埋场渗滤液中含有丰富的有机和无机物质，包括重金属离子。尽管这些化学物质对公众健康和环境构成危害，尤其是当它们到达地表水和地下水系统时，但尚无来自垃圾渗滤液中重金属类型和浓度的数据有波多黎各的垃圾填埋场。在这项研究开始时，PREQB还没有关于PR中任何垃圾填埋场渗滤液组成及其对附近土壤和地下水质量的影响的数据。此外，该机构还利用美国垃圾填埋场的数据来做出有关波多黎各垃圾填埋场问题的决策。因此，优先考虑记录此信息以实现最佳的垃圾掩埋运营，并确定对附近土壤和地下水井的潜在影响。通过本研究，实现了以下目标：（1）设计并实施了垃圾渗滤液中金属的采样和分析方法和程序； （2）使用USEPA（美国环境保护署）批准的分析技术对所选参数进行详细分析； （3）评估了这些参数对渗滤液组成的贡献； （4）比较了在特定垃圾填埋场中两个不同位置（一个包含金属屑，另一个包含生活垃圾）获得的样品的渗滤液组成； （5）将这两个垃圾填埋场渗滤液的金属成分与其他研究报告进行了比较； （6）评估了Toa Baja垃圾填埋场渗滤液对附近土壤和地下水质量的影响。

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  • 作者

    Betancourt Moreno, Luz Stella.;

  • 作者单位

    Universidad del Turabo (Puerto Rico).;

  • 授予单位 Universidad del Turabo (Puerto Rico).;
  • 学科 Environmental Health.;Geochemistry.
  • 学位 Ph.D.
  • 年度 2011
  • 页码 263 p.
  • 总页数 263
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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