Segmented trenches for recovering contaminant plumes from lined waste impoundments

IF 0.8 Q4 ENGINEERING, ENVIRONMENTAL

Proceedings of the Institution of Civil Engineers-Waste and Resource Management Pub Date : 2022-12-19 DOI:10.1680/jwarm.22.00023

P. Hudak

引用次数: 0

Abstract

This study examined the capability of segmented trenches with various placements to remediate groundwater contaminated by small holes in lined waste impoundments such as landfills. A groundwater flow and mass transport model simulated a small contaminant source above an unconfined alluvial aquifer. After the leachate plume evolved for 1,000 days, the source was shut off and clean-up trials commenced. Decoupled trench configurations, with one segment at the downgradient edge of a plume, and the other at high concentrations within the plume, expedited cleanup while limiting downgradient travel. At some sites, relatively efficient schemes documented here may be effective clean-up alternatives for contemporary landfills.

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用于从衬砌的废物蓄水池中回收污染物羽流的分段沟槽

本研究考察了不同位置的分段沟槽修复被填埋等衬砌废物蓄水池中小孔污染的地下水的能力。一个地下水流和质量输运模型模拟了一个在无承压冲积含水层上的小污染源。在渗滤液形成1000天后，源头被关闭，清理试验开始。分离的海沟结构，一段位于羽流的下梯度边缘，另一段位于羽流的高浓度区域，加速了清理，同时限制了向下梯度的移动。在某些地点，本文所记录的相对有效的方案可能是当代垃圾填埋场的有效清理方案。

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

Proceedings of the Institution of Civil Engineers-Waste and Resource Management ENGINEERING, ENVIRONMENTAL-

CiteScore

1.70

自引率

14.30%

发文量

期刊介绍： Waste and Resource Management publishes original research and practice papers on all civil engineering and construction related aspects of the resource management cycle, from the minimization of waste, through the re-use and recycling, to the management and disposal of residual wastes. Associated legislation, standards, socio-economic considerations and links with sustainable consumption and production are included. The range of subjects covered encompasses, but is not restricted to, strategies for reducing construction waste through better design, improved recovery and re-use, more efficient resource management, the performance of materials recovered from wastes, and, the procurement, planning, design, construction, operation and logistics of waste and resource management facilities.