F/M及HRT对果蔬垃圾厌氧发酵产氢的影响  

Effect of the Food to Mass Ratio and Hydraulic Retention Time on Hydrogen Production from Fruit and Vegetable Waste

作　　者：李标 孔晓英[1] 李连华[1] 李颖[1] 袁振宏[1] 孙永明[1] 吕鹏梅[1] LI Biao;KONG Xiao-ying;LI Lian-hua;LI Ying;YUAN Zhen-hong;SUN Yong-ming;LV Peng-mei(Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640 China;Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China)

机构地区：[1]中国科学院广州能源研究所,中国科学院可再生能源重点实验室,广东省新能源和可再生能源研究开发与应用重点实验室,广州510640 [2]中国科学技术大学纳米科学技术学院,苏州215123

出　　处：《环境科学》2017年第11期4882-4888,共7页Environmental Science

基　　金：国家科技支撑计划项目(2015BAD21B03);中国科学院技术服务网络计划项目(KFJ-Ew-STS-138);广东省科技计划项目(2015B020215011)

摘　　要：通过中温半连续厌氧消化实验,考察了果蔬垃圾在不同食微比(0.5、0.75、1.0和1.5)及不同水力停留时间(2、3和4d)下的产氢性能.结果表明,当食微比较低(0.5和0.75)时,各水力停留时间下均不适宜连续产氢,且在水力停留时间为3 d和4 d时容易产生大量甲烷;当食微比较高(1.0和1.5)时,可以实现稳定连续产氢,发酵过程中几乎无甲烷产生.当食微比及水力停留时间分别为1.0及3 d时可获得最佳连续产氢效率,其最高容积产氢量和平均容积产氢量分别为451m L·(L·d)^(-1)和(186±29)m L·(L·d)^(-1),最高挥发性固体产氢率和平均挥发性固体产氢率(以VS计)分别为133 m L·g^(-1)和(27±5)m L·g^(-1),氢气含量可达20%~30%.Semi-continuous biogas production from fruit and vegetable waste by medium temperature anaerobic fermentation was conducted.Hydrogen production under different food-microorganism ratios（F/M 0.5,0.75,1.0,1.5） and hydraulic retention times（HRT）（2,3,4 d） were investigated.The results show that in the case of a smaller F/M values（0.5 and 0.75）,not all HRT stages were conducive to the continuous production of hydrogen,however,they were conducive to producing methane,especially when HRT was 3 or 4 d.Continuous hydrogen production was viable when the F/M ration was relatively higher（1.0 and 1.5）,however,this was not conducive to the production of methane,with almost no methane production detected in this process.A F/M of 1.0 and a HRT of 3 d provided the best conditions for continuous hydrogen production from fruit and vegetable waste.Meanwhile,the highest and average daily volume of hydrogen production were 451.2 m L·（L·d）^-1 and（186 ± 29） m L·（L·d）^-1 respectively,whereas the highest and average hydrogen production rate of volatile solids were 133 m L·g^-1 and（27 ± 5） m L·g^-1 respectively.The hydrogen content was 20%-30%.

关 键 词：果蔬垃圾 食微比 水力停留时间 氢气 甲烷 

分 类 号：X712[环境科学与工程—环境工程]