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温度对餐厨垃圾厌氧消化的影响

发表时间:2016-12-31  浏览量:2146  下载量:382
全部作者: 陈欢,陶盈冰,邹德勋,宋若桢,李云芳,王晓旭,陈振宁,马卓然,李秀金
作者单位: 北京化工大学化学工程学院;北京市环境污染控制与资源化工程研究中心
摘 要: 通过批式厌氧消化实验,以产气效果、底物降解和系统稳定性为指标,研究温度对餐厨垃圾厌氧消化的影响。分别设定温度为低温(20℃)、常温(13~29℃)、中温(35℃)、高温(55℃)和超高温(70℃),进料负荷为5 gVS/L,有机负荷率为F/M=1(F代表有机物,M代表微生物). 结果表明,中温条件下产气效果最好,累积产气量达到8 286 mL;高温条件下的产气效果与中温相差不大,且存在日产气量最大值800 mL;低温和常温条件下的产气量随温度的降低而减少;超高温条件下的产气主要集中于水解酸化阶段,甲烷化阶段几乎没有产气。
关 键 词: 固体污染防治工程;温度;餐厨垃圾;厌氧消化;微生物
Title: Effect of temperature on anaerobic digestion of food waste
Author: CHEN Huan, TAO Yingbing, ZOU Dexun, SONG Ruozhen, LI Yunfang, WANG Xiaoxu, CHEN Zhenning, MA Zhuoran, LI Xiujin
Organization: Colleg of Chemical Engineering, Beijing University of Chemical Technology; Beijing City Environmental Pollution Control and Resource Reuse Engineering Research Center
Abstract: We investigated the effect of temperature on anaerobic digestion of food waste by batch anaerobic digestion tests, using the biogas production, the mass conversion and the system stability as indicators. Five different temperatures were set, psychrophilic (20℃), room temperature (13-29℃), mesophilic (35℃), thermophilic (55℃) and hyperthermophilic (70℃), respectively. The organic loading of food waste was 5 gVS/L and the corresponding organic loading rate was F/M=1 (food to microorganism). The results showed that effect of anaerobic digestion was the best at mesophilic temperature with the maximum biogas production of 8 286 mL. Thermophilic temperature had almost the same effect as mesophilic temperature with the maximum daily biogas production of 800 mL. Biogas production decreased at psychrophilic and room temperatures because the low temperature was not fit for anaerobic digestion system. Most biogas was produced on anaerobic hydrolysis acidification at hyperthermophilic temperature, and there was almost no biogas production in the stage of methane production.
Key words: solid pollution control project; temperature; food waste; anaerobic digestion; microorganism
发表期数: 2016年12月第24期
引用格式: 陈欢,陶盈冰,邹德勋,等. 温度对餐厨垃圾厌氧消化的影响[J]. 中国科技论文在线精品论文,2016,9(24):2572-2578.
 
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