餐厨垃圾与固体废物共消化产气效果研究
|
摘要
为研究餐厨垃圾与不同固体废物厌氧共消化产气的效果,探究餐厨垃圾/污泥共消化最佳进料方式,采用自制的全混合厌氧反应器,通过产气量和甲烷含量综合评价餐厨垃圾与不同固废(鸡粪、猪粪、玉米秸秆、麦秆、稻杆和活性污泥)共消化系统在不同配比下产气的潜力;通过产气性能和消化液的pH值、VFAs质量浓度、氨氮质量浓度、碱度综合评价进料方式对餐厨垃圾/活性污泥共消化系统的影响。结果表明:餐厨垃圾与6种不同底物混合共消化系统的产气潜力分别是活性污泥(5∶5)>鸡粪(5∶5)>玉米杆(3∶7)>麦秆(3∶7)>猪粪(1∶9)>稻杆(5∶5);餐厨垃圾/活性污泥共消化系统连续式进料的各项指标均优于序批式进料,更适合厌氧发酵产沼气。
In order to study the effect of anaerobic co-digestion of kitchen waste with different solid wastes and the optimal feeding method of kitchen waste/sludge co-digestion, a self-made fully mixed anaerobic reactor was used in this study. The gas production potential of the co-digestion system was comprehensively evaluated through gas production and methane content where cooked garbage and six solid wastes mixed system(chicken manure, pig manure, corn stalk, wheat straw, rice straw and activated sludge) under different ratios. Effects of different feeding methods on the cooked garbage/sludge system were comprehensively evaluated by the performance of gas production of the system and pH, VFAs mass concentration, ammonia nitrogen mass concentration and alkalinity of the digestive juice. The results show that the potential gas production of the co-digestive system with six different substrates is activated sludge(5 ∶5)>chicken manure(5 ∶5)>corn stalk(3 ∶7)>wheat straw(3 ∶7)>rice straw(5 ∶5)>pig manure(1 ∶9). All indicators of the continuous feed system for food waste/activated sludge co-digestion system are superior to the sequential batch feed system. And it is more suitable for anaerobic fermentation to produce biogas.
In order to study the effect of anaerobic co-digestion of kitchen waste with different solid wastes and the optimal feeding method of kitchen waste/sludge co-digestion, a self-made fully mixed anaerobic reactor was used in this study. The gas production potential of the co-digestion system was comprehensively evaluated through gas production and methane content where cooked garbage and six solid wastes mixed system(chicken manure, pig manure, corn stalk, wheat straw, rice straw and activated sludge) under different ratios. Effects of different feeding methods on the cooked garbage/sludge system were comprehensively evaluated by the performance of gas production of the system and pH, VFAs mass concentration, ammonia nitrogen mass concentration and alkalinity of the digestive juice. The results show that the potential gas production of the co-digestive system with six different substrates is activated sludge(5 ∶5)>chicken manure(5 ∶5)>corn stalk(3 ∶7)>wheat straw(3 ∶7)>rice straw(5 ∶5)>pig manure(1 ∶9). All indicators of the continuous feed system for food waste/activated sludge co-digestion system are superior to the sequential batch feed system. And it is more suitable for anaerobic fermentation to produce biogas.
引文
[1] 刘晓英. 餐厨垃圾特性及厌氧消化产沼性能研究[D].北京:北京化工大学, 2010.
[2] 李雪, 张欣, 葛长明, 等. 不同秸秆厌氧发酵产沼气潜力研究[J]. 江苏农业科学, 2016, 44(6): 496-499.
[3] WANG Yaya, ZANG Bing, GONG Xiaoyan, et al. Effects of of pH buffering agents on the anaerobic hydrolysis acidification stage of kitchen waste[J]. Waste Management, 2017, 68: 603-609.
[4] KHALID A, ARSHAD M, ANJUM M, et al. The anaerobic digestion of solid organic waste[J]. Waste Management, 2011, 31(8): 1737-1744.
[5] ZUPANCIC G D, URANJEK-ZEVART N, ROS M. Full-scale anaerobic co-digestion of organic waste and municipal sludge[J]. Biomass & Bioenergy, 2008, 32(2): 162-167.
[6] WANG Xiaojiao, YANGGaihe, FENG Yongzhong, et al. Optimizing feeding composition and carbon-nitrogen ratios for improved methane yield during anaerobic co-digestion of dairy, chicken manure and wheat straw[J]. Bioresource Technology,2012, 120: 78-83.
[7] 陈芮芮. 餐厨垃圾与牛粪半干式混合厌氧发酵试验研究[D].郑州:河南农业大学, 2014.
[8] MAO Chunlan, FENG Yongzhong, WANG Xiaojiao, et al. Review on research achievements of biogas from anaerobic digestion[J]. Renewable & Sustainable Energy Reviews,2015, 45: 540-555.
[9] 蒋滔, 李平, 任桂英, 等. 餐厨垃圾与玉米秸秆混合中温发酵产气效果模拟[J]. 生态与农村环境学报, 2015, 31(1): 124-130.
[10] 贾传兴. 有机垃圾两相厌氧消化中氮素转化特性的试验研究[D].重庆:重庆大学, 2007.
[11] 庞艳, 张文阳, 吴燕, 等. 半连续式餐厨垃圾与猪粪混合厌氧消化试验研究[J]. 黑龙江畜牧兽医, 2012(7): 73-75.
[2] 李雪, 张欣, 葛长明, 等. 不同秸秆厌氧发酵产沼气潜力研究[J]. 江苏农业科学, 2016, 44(6): 496-499.
[3] WANG Yaya, ZANG Bing, GONG Xiaoyan, et al. Effects of of pH buffering agents on the anaerobic hydrolysis acidification stage of kitchen waste[J]. Waste Management, 2017, 68: 603-609.
[4] KHALID A, ARSHAD M, ANJUM M, et al. The anaerobic digestion of solid organic waste[J]. Waste Management, 2011, 31(8): 1737-1744.
[5] ZUPANCIC G D, URANJEK-ZEVART N, ROS M. Full-scale anaerobic co-digestion of organic waste and municipal sludge[J]. Biomass & Bioenergy, 2008, 32(2): 162-167.
[6] WANG Xiaojiao, YANGGaihe, FENG Yongzhong, et al. Optimizing feeding composition and carbon-nitrogen ratios for improved methane yield during anaerobic co-digestion of dairy, chicken manure and wheat straw[J]. Bioresource Technology,2012, 120: 78-83.
[7] 陈芮芮. 餐厨垃圾与牛粪半干式混合厌氧发酵试验研究[D].郑州:河南农业大学, 2014.
[8] MAO Chunlan, FENG Yongzhong, WANG Xiaojiao, et al. Review on research achievements of biogas from anaerobic digestion[J]. Renewable & Sustainable Energy Reviews,2015, 45: 540-555.
[9] 蒋滔, 李平, 任桂英, 等. 餐厨垃圾与玉米秸秆混合中温发酵产气效果模拟[J]. 生态与农村环境学报, 2015, 31(1): 124-130.
[10] 贾传兴. 有机垃圾两相厌氧消化中氮素转化特性的试验研究[D].重庆:重庆大学, 2007.
[11] 庞艳, 张文阳, 吴燕, 等. 半连续式餐厨垃圾与猪粪混合厌氧消化试验研究[J]. 黑龙江畜牧兽医, 2012(7): 73-75.