渗滤液
城市固体废物
环境科学
废物管理
生物反応器型埋立
环境工程
城市垃圾
水文学(农业)
地质学
岩土工程
工程类
作者
Daniele Di Trapani,Gaetano Di Bella,Giorgio Mannina,Salvatore Nicosia,Gaspare Viviani
标识
DOI:10.1061/(asce)ee.1943-7870.0000950
摘要
AbstractWaste settlement as well as consolidation phenomena, which occur inside a landfill for municipal solid waste (MSW), can cause a decrease in waste permeability. This can lead to a reduction in conveyance of the leachate drainage system. It is therefore possible that a so-called perched leachate zone will form. Such a zone is constituted by an area in the body of the landfill where the leachate is temporarily trapped and is unable to infiltrate downward. This phenomenon is influenced by many factors, which include rain infiltration rate, waste moisture and composition, landfill height, and so on. The main aim of the paper is to elucidate the role played by landfill height in the formation of perched leachate zones using a one-dimensional (1D) mathematical model. The model allows for the simulation of the percolation fluxes throughout an MSW landfill based on mass-balance equations. The results showed a different response in terms of flow rates throughout the landfill, highlighting the important role...
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