欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用批式实验,通过分析液相性质和产气过程,比较了生活垃圾中2类主要的生物质组分（食物类废物和纤维类废物）及其不同含量在厌氧降解时甲烷生成过程的差异.结果表明,食物类废物累积产甲烷量远高于纤维类废物,其有机物的快速水解酸化,为快速产甲烷化提供了必要的底物.纤维类废物产甲烷速率相对较低,水解是其厌氧产甲烷化过程的控制步骤.生活垃圾的产甲烷量可以根据食物类废物和纤维类废物的比例推算而得,食物类废物含量越高,其累积产甲烷量越大.采用厌氧消化工艺有利于含食物类废物量高的垃圾的能量回收,而因食物类废物快速水解导致的液相挥发性有机酸积累是该工艺必须解决的关键性技术问题.
英文摘要：
Batch reactors were applied to study the anaerobic methanization of municipal solid waste （MSW）. To compare the difference of methanization process of the majority two compositions of MSW, food waste and cellulosic waste, liquid characteristics and biogas production were investigated on the reactors with reconstituted food waste and cellulosic waste respectively, and two kinds of typical MSW with different contents of food waste and cellulosic waste. Methane yield of food waste was much higher than that in cellulosic waste, and sufficient intermediate products were supplied by quick hydrolysis of food waste, which was necessary for high rate of methanization. The hydrolysis rate of cellulosic waste was slower, and that was the control step for methanization of cellulosic waste. The methane production of MSW could be estimated by summing up the separate methane production of the food waste and cellulosic waste in MSW, and the higher content of food waste, the higher yield of methane. Considering the superiority of methanization of food waste, anaerobic digestion process should be appropriate for treatment of the MSW with high content of food waste. Meanwhile, the accumulation of volatile fatty acids in the liquid phase that occurred according to fast hydrolysis of food waste, may inhibit the overall biodegradation, and this problem should be solved for the successful application of the anaerobic methanization process.
同期刊论文项目
同项目期刊论文
Methane emissions from MSW landfill with sandy soil covers under leachate recirculation and subsurfa
Partition of six phthalate acid esters in soluble and solid residual fractions of wastewater sludges
Behaviour and mechanism of enhanced phosphate sorption on loess modified with metals: Equilibrium st
Investigation of migration of pollutant at the base of Suzhou Qizishan landfill without a liner syst
Adsorption and desorption behaviour of Pb(II) on a natural kaolin: Equilibrium, kinetic and thermody
An analytical solution for one-dimensional contaminant diffusion through multi-layered system and it
Combined monitoring of changes in δ 13 CH4 and archaeal community structure during mesophilic methan
Co-removal of phthalic acid esters with dissolved organic matter from landfill leachate by coagulati
Investigation of mechanisms of bentonite extrusion from GCL and related effects on the shear strengt
期刊信息
位置：