Modeling and simulation of landfill gas production from pretreated MSW landfill simulator

• Published in: Frontiers of environmental science & engineering 2016-02, Vol.10 (1), p.159-167
• Main Authors: Mahar, Rasool Bux, Sahito, Abdul Razaque, Yue, Dongbei, Khan, Kamranullah
• Format: Article
• Language: English
• Subjects: Anaerobic treatment; biochemical pathways; combine growth and decay model; Cost benefit analysis; Decay; Degradation; Delay time; Earth and Environmental Science; Environment; Gas production; Gompertz模型; Goodness of fit; Landfill; Landfill gas; Landfills; managers; Modelling; multi component landfill gas (LFG) model; Municipal landfills; Municipal solid waste; Municipal waste management; Oil and gas production; pretreated municipal solid waste (MSW); Research Article; risk; Simulation; simulation models; Solid waste management; Solid wastes; Waste disposal sites; 场模拟; 垃圾渗滤液; 建模工具; 快速降解; 指数模型; 生活垃圾填埋场; 预处理
• ISSN: 2095-2201; 2095-221X
• DOI: 10.1007/s11783-014-0685-6

The cumulative landfill gas (LFG) production and its rate were simulated for pretreated municipal solid waste (MSW) landfill using four models namely first order exponential model, modified Gompertz model, single component combined growth and decay model and Gaussian function. Considering the behavior of the pretreated MSW landfill, a new multi component model was based on biochemical processes that occurring in landfilled pretreated MSW. The model was developed on the basis of single component combined growth and decay model using an anaerobic landfill simulator reactor which treats the pretreated MSW. It includes three components of the degradation i.e. quickly degradable, moderately degradable and slowly degradable. Moreover, the developed model was statistically analyzed for its goodness of fit. The results show that the multi components LFG production model is more suitable in comparison to the simulated models and can efficiently be used as a modeling tool for pretreated MSW landfills. The proposed model is likely to give assistance in sizing of LFG collection system, generates speedy results at lower cost, improves cost-benefit analysis and decreases LFG project risk. It also indicates the stabilization of the landfill and helps the managers in the reuse of the landfill space. The proposed model is limited to aerobically pretreated MSW landfill and also requires the values of delay times in LFG productions from moderately and slowly degradable fractions of pretreated MSW.