知识与财富的链接
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363.5 mL/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 m3/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 2 264.2 m3/d, indicating that the potential for methane production through anaerobic digestion of campus catering waste is enormous and has practical value.
