校园餐饮垃圾产甲烷潜力的估算  

Estimation of methane production potential from anaerobic digestion of campus catering waste

作　　者：江岩 底坤 胡乐涵 刘新媛 Jiang Yan;Di Kun;Hu Lehan;Liu Xinyuan(College of Engineering and Technology,Tianjin Agricultural University,Tianjin 300392,China;Urban and Rural Water Affairs and Architectural Design Institute,Hunan Hydro&Power Design Institute(HHPDI),Changsha 410000,China)

机构地区：[1]天津农学院工程技术学院,天津300392 [2]湖南省水利水电勘测设计规划研究总院有限公司城乡水务和建筑设计院,长沙410000

出　　处：《天津农学院学报》2024年第6期90-93,共4页Journal of Tianjin Agricultural University

基　　金：天津市教委科研计划项目(2022KJ021)。

摘　　要：本研究以评估高等学校校园食堂餐饮垃圾的沼气发酵产气潜能为目的,采用理论法和试验法估算校园餐饮垃圾的产甲烷潜力。结果表明,依据化学需氧量守恒的原理估算得到校园餐饮垃圾的理论甲烷产率为446.7 mL/gVS(挥发性固体),其中溶解性糖类和溶解性蛋白类贡献了33.8%的甲烷产量。采用试验法估算时,进行厌氧批式发酵试验得到校园餐饮垃圾的累积甲烷产率为363.5mL/gVS,低于理论估算值。根据试验法估算结果,计算得到天津地区校园餐饮垃圾的产甲烷量可达2 264.2 m~3/d,说明校园餐饮垃圾沼气发酵产甲烷潜力巨大,具有较大的应用价值。The purpose of this study is to evaluate the methane production potential of campus cafeteria catering waste through anaerobic digestion by using the theoretical and experimental methods.Based on the principle of conservation of chemical oxygen demand,the theoretical methane production rate of campus catering waste was estimated to be 446.7 mL/gVS(Volatile solid),with dissolved carbohydrates and proteins contributing 33.8%of methane production.Using the experimental method,anaerobic batch fermentation experiments with campus catering waste as substrate obtained the cumulative methane yield of 363.5 mL/gVS,which was lower than the theoretical estimation value.According to the estimation results with the experimental method,it was calculated that the methane production of campus catering waste in Tianjin city could reach 2264.2 m3/d,indicating that the potential for methane production through anaerobic digestion of campus catering waste is enormous and has practical value.

关 键 词：校园餐饮垃圾 产甲烷潜力 理论估算 试验估算 

分 类 号：X705[环境科学与工程—环境工程]