Gas Pressure Model for Layered Municipal Solid Waste Landfills

被引：25

作者：

Li, Yu-Chao ^{[1
]}

Cleall, Peter John ^{[2
]}

Ma, Xiao-Fei ^{[1
]}

Zhan, Tony L. T. ^{[1
]}

Chen, Yun-Min ^{[1
]}

机构：

[1] Zhejiang Univ, MOE Key Lab Soft Soils & Geoenvironm Engn, Dept Civil Engn, Hangzhou 310058, Zhejiang, Peoples R China

[2] Cardiff Univ, Geoenvironm Res Ctr, Cardiff Sch Engn, Cardiff CF24 3AA, S Glam, Wales

来源：

JOURNAL OF ENVIRONMENTAL ENGINEERING | 2012年 / 138卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Analytical techniques; Landfill; Gas; Pressure; NUMERICAL-SIMULATION; BEM SOLUTION; MIGRATION; FLOW; PERMEABILITY; TRANSPORT; GENERATION; EXTRACTION; EMISSION; DESIGN;

D O I：

10.1061/(ASCE)EE.1943-7870.0000533

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A mathematical model for calculating gas pressure profiles in layered landfill systems is presented. Solutions to scenarios considering a zero-pressure top boundary condition and a zero gas flux or fixed gas pressure bottom boundary condition are presented. Two cases, specified gas pressure and specified inward gas flux, are addressed for scenarios involving horizontal gas collection systems. A series of application examples demonstrate how the proposed model can be used to investigate the influences of (1) variation of gas generation rate with respect to depth and time, (2) soil covers, (3) horizontal collection layers, and (4) geomembrane and geosynthetic clay liner covers on gas pressure distribution in landfills. The proposed model provides a useful tool to landfill engineers in designing landfill gas management systems and in particular when selecting and specifying gas collection system spacing and pumps. DOI: 10.1061/(ASCE)EE.1943-7870.0000533. (C) 2012 American Society of Civil Engineers.

引用

页码：752 / 760

页数：9

共 37 条

[1] [Anonymous], 2011, MATLAB: The language of technical computing
[2] [Anonymous], 2011, 430R11005 EPA
[3] [Anonymous], COMSOL MULT COMP SOF
[4] GAS GENERATION, TRANSPORT, AND EXTRACTION IN LANDFILLS
ARIGALA, SG
TSOTSIS, TT
WEBSTER, IA
YORTSOS, YC
KATTAPURAM, JJ
[J]. JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 1995, 121 (01): : 33 - 44
[5] Numerical simulation of gas emission in a sanitary landfill equipped with a passive venting system
Chen, YC
Wu, CH
Hu, HY
[J]. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2000, 35 (09): : 1735 - 1747
[6] Numerical simulation of gas flow around a passive vent in a sanitary landfill
Chen, YC
Chen, KS
Wu, CH
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2003, 100 (1-3) : 39 - 52
[7] Stochastic model for landfill gas transport and energy recovery
Copty, NK
Ergene, D
Onay, TT
[J]. JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 2004, 130 (09): : 1042 - 1049
[8] Gas permeability of geosynthetic clay liners
Didier, G
Bouazza, A
Cazaux, D
[J]. GEOTEXTILES AND GEOMEMBRANES, 2000, 18 (2-4) : 235 - 250
[9] Numerical modelling of generation and transport of gas and heat in landfills .1. Model formulation
ElFadel, M
Findikakis, AN
Leckie, JO
[J]. WASTE MANAGEMENT & RESEARCH, 1996, 14 (05) : 483 - 504
[10] Migration and atmospheric emission of landfill gas
ElFadel, M
Findikakis, AN
Leckie, JO
[J]. HAZARDOUS WASTE & HAZARDOUS MATERIALS, 1995, 12 (04): : 309 - 327

← 1 2 3 4 →