摘要
采用厌氧发酵处理庆大霉素菌渣,考察了含固率、接种比、接种污泥、发酵底物等因素对庆大霉素菌渣厌氧发酵的影响,并用累积净甲烷产量衡量庆大霉素菌渣进行厌氧发酵的可行性及发酵程度。试验结果证实了庆大霉素菌渣进行厌氧发酵的可行性,其中含固率和接种比对发酵的影响较大,最佳条件为含固率5%,接种比1/3;对比试验所用3种接种污泥,发现接种某造纸厂污水处理IC反应器的厌氧颗粒污泥效果最优,在最优含固率和接种比的条件下,累积净产甲烷量为28.21 m3/t;此外,试验还证实,采用不同菌渣的联合发酵表现出了明显的协同作用,在最优条件下,庆大霉素菌渣与林可霉素菌渣按1∶2的比例联合发酵的产甲烷量可达到37.5 m3/t。
The feasibility of anaerobic digestion for gentamicin mushroom dreg was evaluated by biochemical methane potential（ BMP） tests and the fermentation condition was optimized by regulating solid contents,inoculation ratio,inoculated sludge and fermentation substrates based on net methane production. The results showed that gentamicin mushroom dreg could be effectively fermented in anaerobic condition. The fermentation was significantly influenced by solid contents and inoculation ratio,and the optimal values were 5% and 1 /3,respectively. In this condition,the net methane production could be as high as 28. 21 m3/ t by inoculating anaerobic granular sludge from the IC reactor of a paper mill wastewater treatment. Furthermore,it was suggested that a significant synergy existed when gentamicin mushroom dreg and lincomycin mushroom dreg were co-fermented at a ratio of 1∶ 2,resulting in a net methane production be up to 37. 5 m3/ t.
出处
《环境工程》
CAS
CSCD
北大核心
2017年第1期119-123,共5页
Environmental Engineering
基金
河南科技攻关项目(162102210084)
国家"水体污染控制与治理"科技重大专项(2012ZX-07204-001-002)
关键词
庆大霉素菌渣
厌氧发酵
累积净甲烷产量
含固率
接种比
gentamicin mushroom dreg
anaerobic digestion
net methane production
solid content
inoculation ratio
