Modelling flow to leachate wells in landfills

被引：19

作者：

Al-Thani, AA ^{[1
]}

Beaven, RP ^{[1
]}

White, JK ^{[1
]}

机构：

[1] Univ Southampton, Dept Civil & Environm Engn, Southampton SO17 1BJ, Hants, England

来源：

WASTE MANAGEMENT | 2004年 / 24卷 / 03期

关键词：

D O I：

10.1016/j.wasman.2003.11.010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Vertical wells are frequently used as a means of controlling leachate levels in landfills. They are often the only available dewatering option for both old landfills without any basal leachate collection layer and for newer sites where the installed drainage infrastructure has failed. When the well is pumped, a seepage face develops at the entry into the well so that the drawdown in the surrounding waste will not be as great as might be expected. The numerical groundwater flow model MODFLOW-SURFACT, which contains the functionality to model seepage surfaces, has been used to investigate the transient dewatering of a landfill. The study concludes that the position of the seepage face and information about the characteristics of the induced seepage flow field are important and should not be neglected when designing wells in landfills. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：271 / 276

页数：6

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