环境工程学报2017，Vol.11Issue(11)：6034-6040,7.DOI:10.12030/j.cjee.201608212
湿热预处理对北京市典型餐厨垃圾生物制氢潜力的影响
Impact of hydrothermal pre-treatmentfrom typical kitchen waste in Beijing on biohydrogen production potential
摘要
Abstract
The influence of the physicochemical properties of kitchen waste and anaerobic fermentation on hydrogen production potential after different hydrothermal pre-treatments was investigated.Two typical kitchen wastes that are common in Beijing were analyzed under different temperatures (40,80,120 and 160 ℃) and heating intervals (30,60,90 and 120 min).The results showed that the content of floatable oil was significantly affected by temperature and the time of the hydrothermal pre-treatment.The levels of SCOD and TOC changes were negatively correlated with VS/TS.The kitchen waste degree of floatable oil,SCOD,and TOC at the hydrothermal conditions of 120 ℃ and 30 min of treatment were 17 mL · kg-1,150.99 g · L-1,and 57.91 g · L-1,respectively.The kitchen waste degree of floatable oil,SCOD,and TOC at the hydrothermal conditions of 160 ℃ and 30 min of treatment were 99 mL· kg-1,120.69 g· L-1,and 62.58 g· L-1,respectively.At 160 ℃ for 30 min,under mesophilic and thermophilic conditions,the rates of hydrogen production and maximum hydrogen production were 40.58 mL · g-1 VS and 29.20 mL · h-1 which were 0.78 and 2.02 times higher than the control sample,respectively.The start-up time reduced by more than one time compared with the control under mesophilic conditions.The solubility and bioavailability of organic wastes can be enhanced using a modest hydrothermal pretreatment system that improves the hydrogen production yield and efficiency.关键词
餐厨垃圾/湿热预处理/生物制氢/理化性能/动力学分析Key words
kitchen waste/hydrothermal pretreatment/biohydrogen production/physicochemical properties/kinetic analysis分类
资源环境引用本文复制引用
贾璇,王勇,任连海,李彤,李迎新,赵敏..湿热预处理对北京市典型餐厨垃圾生物制氢潜力的影响[J].环境工程学报,2017,11(11):6034-6040,7.基金项目
国家自然科学基金资助项目(21406213) （21406213）
