采用介质阻挡放电等离子体/微曝气技术协同处理苯酚废水,考察放电电压、放电时间、溶液初始浓度及曝气量对苯酚处理效果的影响。研究结果表明：苯酚降解率随放电时间增加、苯酚初始浓度减小而提高;曝气量为150 m L/min时,苯酚降解率为51...采用介质阻挡放电等离子体/微曝气技术协同处理苯酚废水,考察放电电压、放电时间、溶液初始浓度及曝气量对苯酚处理效果的影响。研究结果表明：苯酚降解率随放电时间增加、苯酚初始浓度减小而提高;曝气量为150 m L/min时,苯酚降解率为51.8%。采用介质阻挡放电等离子体/微曝气协同工艺处理苯酚废水,与单独使用介质阻挡放电等离子体工艺相比,苯酚降解率提高了15%~20.4%。展开更多
以模拟的城镇生活垃圾为底物,在发酵试验起始阶段向反应体系通入不同浓度氧气(0,5,10,20 m L O2/g VS),探究微氧处理对两相发酵联产氢气甲烷的影响。研究表明,通入5 m L O2/g VS的试验组获得了最高的氢气产量(72.23 m L/g VS),较未处理...以模拟的城镇生活垃圾为底物,在发酵试验起始阶段向反应体系通入不同浓度氧气(0,5,10,20 m L O2/g VS),探究微氧处理对两相发酵联产氢气甲烷的影响。研究表明,通入5 m L O2/g VS的试验组获得了最高的氢气产量(72.23 m L/g VS),较未处理组提高了45.51%;虽然通入5 m L O2/g VS的试验组也获得了最高的甲烷产量(380.35 m L/g VS),但相比其他试验组并无明显提高。从整体来看,通入5 m L O2/g VS的试验组获得了最高的VS降解率(75.66%)和最高的能量回收率(72.76%),较未处理组分别提高了5.70%和5.33%。试验表明,适量的微氧处理(5 m L O2/g VS)可以提高城镇生活垃圾两相发酵联产氢气甲烷的产能效果。展开更多
The comparison of pentachlorophenol(PCP)degradation was conducted under micro-aeration and anaerobic condition with three series of batch experiment,results of which indicated that during micro-aeration condition co-i...The comparison of pentachlorophenol(PCP)degradation was conducted under micro-aeration and anaerobic condition with three series of batch experiment,results of which indicated that during micro-aeration condition co-immobilized of anaerobic granular sludge and isolated aerobic bacterial species could enhance the efficiency of PCP reduction through the synergism of aerobes and anaerobes reductive dechlorination and exchange of metabolites within the co-immobilized granular sludge.While during anaerobic condition,there was no great difference in the three series.The specific activities experiment further confirmed that strict anaerobes were not affected over the presence of micro aeration environment.Microorganism community construc-tion of co-immobilized anaerobic granular sludge and the mixed isolated aerobic community was also deduced.By the efficient cooperation of aerobes and anaerobes,the high efficiency removal rate of PCP was implemented.展开更多
文摘采用介质阻挡放电等离子体/微曝气技术协同处理苯酚废水,考察放电电压、放电时间、溶液初始浓度及曝气量对苯酚处理效果的影响。研究结果表明：苯酚降解率随放电时间增加、苯酚初始浓度减小而提高;曝气量为150 m L/min时,苯酚降解率为51.8%。采用介质阻挡放电等离子体/微曝气协同工艺处理苯酚废水,与单独使用介质阻挡放电等离子体工艺相比,苯酚降解率提高了15%~20.4%。
文摘以模拟的城镇生活垃圾为底物,在发酵试验起始阶段向反应体系通入不同浓度氧气(0,5,10,20 m L O2/g VS),探究微氧处理对两相发酵联产氢气甲烷的影响。研究表明,通入5 m L O2/g VS的试验组获得了最高的氢气产量(72.23 m L/g VS),较未处理组提高了45.51%;虽然通入5 m L O2/g VS的试验组也获得了最高的甲烷产量(380.35 m L/g VS),但相比其他试验组并无明显提高。从整体来看,通入5 m L O2/g VS的试验组获得了最高的VS降解率(75.66%)和最高的能量回收率(72.76%),较未处理组分别提高了5.70%和5.33%。试验表明,适量的微氧处理(5 m L O2/g VS)可以提高城镇生活垃圾两相发酵联产氢气甲烷的产能效果。
基金This research was funded by the National Natural Science Foundation of China(Grant No.20676045)State Key Laboratory of Pulp and Paper Engineering,South China University of Technology(200552).
文摘The comparison of pentachlorophenol(PCP)degradation was conducted under micro-aeration and anaerobic condition with three series of batch experiment,results of which indicated that during micro-aeration condition co-immobilized of anaerobic granular sludge and isolated aerobic bacterial species could enhance the efficiency of PCP reduction through the synergism of aerobes and anaerobes reductive dechlorination and exchange of metabolites within the co-immobilized granular sludge.While during anaerobic condition,there was no great difference in the three series.The specific activities experiment further confirmed that strict anaerobes were not affected over the presence of micro aeration environment.Microorganism community construc-tion of co-immobilized anaerobic granular sludge and the mixed isolated aerobic community was also deduced.By the efficient cooperation of aerobes and anaerobes,the high efficiency removal rate of PCP was implemented.
