微波预处理对厌氧颗粒污泥发酵产氢的影响  

Influence of Microwave Pretreatment on Fermentative Bio-hydrogen Production by Anaerobic Granular Sludge

作　　者：黄惠莹[1,2] 周兴求[1,2] 

机构地区：[1]华南理工大学环境科学与工程学院,广东广州510006 [2]华南理工大学工业聚集区污染控制与生态修复教育部重点实验室,广东广州510006

出　　处：《中国给水排水》2010年第23期13-16,共4页China Water & Wastewater

摘　　要：以高浓度有机废水为发酵底物,接种颗粒污泥进行厌氧发酵制氢,研究不同的微波预处理时间对颗粒污泥发酵产氢的影响。结果表明:最佳的微波预处理时间为6 min,此时的比产氢速率高达8.03 mmolH2/(gCOD.d);随着预处理时间的增加,对COD的去除率逐步提高,但也不宜过长,否则将会杀灭产酸菌芽孢,导致去除率降低;系统启动完成后,出水pH值稳定在4.5左右,对COD的去除率约为40%,颗粒污泥的VSS/SS值为83.0%,沉降速率为23.5 m/h。Taking high concentrated organic wastewater as fermentative substrates, the inoculated granular sludge was used for fermentative bio-hydrogen production, and the influence of microwave pretreatment time on the fermentative bio-hydrogen production was investigated. The results show that the optimal time of microwave pretreatment is 6 min, and the specific hydrogen production rate is the highest, attaining 8.03 mmolH2/（ gCOD· d）. As the pretreatment time increases, the COD removal rate is gradually improved. But the pretreatment time should not be too long, otherwise it would kill spores of acid-producing bacteria to result in lower COD removal. At the end of start-up, pH value of the sample is stable at about 4.5, the COD removal rate is approximately 40%, VSS/SS of granular sludge is 83.0%, and the sedimentation rate is 23.5 m/h.

关 键 词：厌氧颗粒污泥 发酵产氢 微波预处理 

分 类 号：X703[环境科学与工程—环境工程]