厨余垃圾填埋产气过程实验模拟研究
首发时间:2007-02-09
摘要:研究垃圾填埋产气规律对合理预测垃圾填埋气产气量及进行垃圾填埋气回收利用有着重要意义。本文针对我国生活垃圾以厨余为主的特点,选择厨余垃圾在厌氧模拟反应器中进行填埋降解产气过程实验,实验中对累积产气量、产气率,渗滤液的pH值、COD、VFA进行了监测,得到了这些影响因素随时间的变化规律,在此基础上推导出了理论产气速率模型。根据该模型对实验数据利用梯度法优化求参,拟合得到产气速率关系曲线和产气特征参数。
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Study on the Generation Process of Landfill Gas from kitchen waste by Laboratory Simulation
Abstract:Study on landfill gas (LFG) generation pattern plays an important role in rational prediction of the LFG generation quantity and recovery of LFG. In this paper, the experiment of the generation process of landfill gas from kitchen waste was conducted in simulated anaerobic reactor for the kitchen waste is a major component of domestic refuse in China. Cumulative LFG production and LFG production rate, and pH value, chemical oxygen demand (COD), volatile fatty acids (VFA) concentrations were regularly monitored; results show the variation pattern of them with time. A theoretical model of landfill gas (LFG) generation was derived based on the gas generation pattern. With this model, through parameter identification by optimizing method of gradient approach and experimental fitting, the featured parameters of landfill gas generation from kitchen waste were obtained.
Keywords: kitchen waste;anaerobic; landfill gas;generation rate
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No.1112483820117099****
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