Application of selected indicators to assess contamination of municipal landfill leachate and its impact on groundwater

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry Pub Date : 2024-08-31 DOI:10.1016/j.wri.2024.100265

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引用次数: 0

Abstract

Leachate formation is one of the most important factors taken into account during the operation and long-term management of municipal waste landfills. Systematic assessment of groundwater and leachate contamination may be useful in selecting the appropriate method of leachate management or treatment processes. The use of indicators to quantify the contamination potential of leachate and groundwater in the vicinity of MSW could help landfill managers assess their quality. Therefore, the aim of the study was to assess the representativeness of selected indicator methods for analyzing the temporal variability of leachate and groundwater properties in the vicinity of two municipal waste landfills in a Central European country (Poland). The leachate pollution index (LPI), sub-LPI and adjusted leachate pollution index (r-LPI) were used to assess the quality of leachate water, while the landfill water pollution index (LWPI) was used to assess the variability of groundwater quality. The results confirmed that LWPI is an effective method for assessing the quality of groundwater in the vicinity of municipal waste landfills. The obtained results confirm the negative impact of landfills, despite the insulation used. LWPI showed poor quality of groundwater and visible impact of the landfill (landfill W, average LWPI - 2.34) and moderately polluted waters and minor impact of the landfill (landfill S, average LWPI - 1.37). In most cases, it was observed that two parameters, EC and TOC, are the main factors contributing to the deterioration of groundwater quality. The sub-LPI analysis showed that leachates from both landfills have a very low content of heavy metals, so they should not have a negative impact on the biological treatment process. The obtained r-LPI values were in all cases higher than the calculated LPI values. For landfill S, the average r-LPI was 26.3 (Z-1) and 25.7 (Z-2). However, the average LPI was 13.5 (Z-1) and 13.2 (Z-2). For landfill W, the average r-LPI was 14.6 and the average LPI was 11.4. Analysis conducted on multi-year leachate and groundwater data using specific indicators can help managers better understand the impact of MSW on surrounding areas and help avoid potential operational problems in the future.

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应用选定指标评估城市垃圾填埋场沥滤液污染及其对地下水的影响

沥滤液的形成是城市垃圾填埋场运行和长期管理过程中需要考虑的最重要因素之一。对地下水和沥滤液污染进行系统评估可能有助于选择适当的沥滤液管理方法或处理工艺。使用指标来量化都市固体废物附近沥滤液和地下水的污染潜力，有助于垃圾填埋场管理者评估其质量。因此，本研究旨在评估选定指标方法的代表性，以分析中欧国家（波兰）两个城市垃圾填埋场附近沥滤液和地下水特性的时变性。渗滤液污染指数 (LPI)、子 LPI 和调整后的渗滤液污染指数 (r-LPI) 用于评估渗滤液水质，而填埋水污染指数 (LWPI) 则用于评估地下水水质的可变性。结果证实，LWPI 是评估城市垃圾填埋场附近地下水质量的有效方法。尽管使用了隔热材料，但所得结果证实了垃圾填埋场的负面影响。LWPI 显示地下水质量较差，垃圾填埋场的影响明显（W 垃圾填埋场，平均 LWPI - 2.34），水质中度污染，垃圾填埋场的影响较小（S 垃圾填埋场，平均 LWPI - 1.37）。在大多数情况下，EC 和 TOC 这两个参数是导致地下水水质恶化的主要因素。子 LPI 分析表明，两个垃圾填埋场的渗滤液重金属含量都很低，因此不会对生物处理过程产生负面影响。获得的 r-LPI 值在所有情况下都高于 LPI 计算值。垃圾填埋场 S 的 r-LPI 平均值为 26.3（Z-1）和 25.7（Z-2）。然而，平均 LPI 为 13.5（Z-1）和 13.2（Z-2）。对于垃圾填埋场 W，平均 r-LPI 为 14.6，平均 LPI 为 11.4。利用特定指标对多年沥滤液和地下水数据进行分析，可帮助管理人员更好地了解 MSW 对周边地区的影响，并有助于避免未来可能出现的运营问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Water Resources and Industry Social Sciences-Geography, Planning and Development

CiteScore

8.10

自引率

5.90%

发文量

审稿时长

75 days

期刊介绍： Water Resources and Industry moves research to innovation by focusing on the role industry plays in the exploitation, management and treatment of water resources. Different industries use radically different water resources in their production processes, while they produce, treat and dispose a wide variety of wastewater qualities. Depending on the geographical location of the facilities, the impact on the local resources will vary, pre-empting the applicability of one single approach. The aims and scope of the journal include: -Industrial water footprint assessment - an evaluation of tools and methodologies -What constitutes good corporate governance and policy and how to evaluate water-related risk -What constitutes good stakeholder collaboration and engagement -New technologies enabling companies to better manage water resources -Integration of water and energy and of water treatment and production processes in industry