| 填埋场释放气体运移数值模型及应用 |
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| 引用本文： | 陈家军,王红旗,王金生,聂永丰,李国鼎.填埋场释放气体运移数值模型及应用[J].环境科学学报,2000,20(3):327-331. |
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| 作者姓名： | 陈家军 王红旗 王金生 聂永丰 李国鼎 |
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| 作者单位： | 北京师范大学环境科学研究所环境模拟与污染控制国家重点联合实验室!北京100875，北京师范大学环境科学研究所环境模拟与污染控制国家重点联合实验室!北京100875，北京师范大学环境科学研究所环境模拟与污染控制国家重点联合实验室!北京100875，清华大学环境科学与工程系!北京1000 |
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| 基金项目： | 高等学校博士学科点专项科研基金! (980 0 2 712 ) |
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| 摘 要： | 以多也介质流体动力学理论为基础，在考虑填埋场内气体压力变化较小、相应气体密度变化小的情况下建立了填埋场释放气体运移数值模型。该模型具有适用范围广的特点，如边界形状任意、介质性质空间变化。模型中考虑了填埋场中介质含水量变化对气体运移的影响，利用本数值模型对无控制系统和有控制系统时释放气体运移进行了对比模拟分析，给出了有水平气体控制系统时的优化排气量并得出相庆的释放气体收集率，可为填埋场释放气体控制系
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| 关 键 词： | 填埋场 释放气体运移 模型 垃圾处理 污染气体 |
| 收稿时间： | 1999/1/28 0:00:00 |
| 修稿时间： | 1999-01-28 |
Numerical model of landfill gas migration and its application |
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| CHEN Jiajun,WANG Hongqi,WANG Jinsheng,NIE Yongfeng and LI Guoding.Numerical model of landfill gas migration and its application[J].Acta Scientiae Circumstantiae,2000,20(3):327-331. |
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| Authors: | CHEN Jiajun WANG Hongqi WANG Jinsheng NIE Yongfeng and LI Guoding |
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| Institution: | Institute of Environmental Sciences, Beijing Normal Universit y, St at e Key Joint Laborat ory of Environment al Simulat ion and Pollution Control, Beijing 100875,Institute of Environmental Sciences, Beijing Normal Universit y, St at e Key Joint Laborat ory of Environment al Simulat ion and Pollution Control, Beijing 100875,Institute of Environmental Sciences, Beijing Normal Universit y, St at e Key Joint Laborat ory of Environment al Simulat ion and Pollution Control, Beijing 100875,Department of Environment al Science and Engineering, Tsinghua University, Beijing 100084 and Department of Environment al Science and Engineering, Tsinghua University, Beijing 100084 |
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| Abstract: | Based on the theory of fluid dynamics in porous media,a numerical model of landfill gas migration is developed under presumption of small variation of air pressure,negligible change of gas density.This model is characterized with wider range of its availability, such as any shape of domain and space variation of media property at landfill site.The influence of water content of the media on landfill gas migration is taken into account.In this paper,the comparison and analysis of landfill gas migration simulation are presented in assumptions of with landfill gas control system and without landfill gas control system,and the optimal pumpage of gas pumping well is calculated,thus the ratio of landfill gas collection is given correspondingly.Hence it can provide basis for designing of landfill gas control system and for environmental impact prediction and assessment of landfill gas migration. |
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| Keywords: | landfill gas migration numerical model application |
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