环境工程学报2017，Vol.11Issue(11)：6007-6013,7.DOI:10.12030/j.cjee.201612153
酸化相发酵类型对甲烷相产甲烷性能的影响
Effects of fermentation type of acidogenic phase on biomethane yield of methanogenic phase
摘要
Abstract
The different acidifying fermentation type and the corresponding performance of methane yield were researched by controlling pH,oxidation-reduction potential (ORP) and organic loading rate (OLR) in acidogenic phase of digesting food waste and rice straw.The results showed that the ethanol-type fermentation was occurred at pH ＜ 4.5 and ORP ＜-120 mV.At pH ＞ 5.5,the butyric acid-type fermentation was appeared.A mixed type fermentation was found in the transformation between butyric acid-type fermentation and ethanol-type fermentation.The best acidifying performance was butyric acid-type fermentation with the acidification degree of 36％.Meanwhile,the maximum total methane production of 535 mL · g-1VS was obtained from digestion of the effluent of R2.Through the analysis results of PCR-DGGE,the advantage bacteria were Bacteroidetes and Lactobacillus in acidogenic phase,and Lactobacillus in methanogenic phase.关键词
餐厨垃圾/稻草/两相厌氧消化/微生物种群结构Key words
food waste/rice straw/two-phase anaerobic digestion/microbial community structure分类
资源环境引用本文复制引用
陈雪,李秀金,张文海,张立东,朱海燕,刘研萍,袁海荣,庞云芝,浦鹏..酸化相发酵类型对甲烷相产甲烷性能的影响[J].环境工程学报,2017,11(11):6007-6013,7.基金项目
国家科技支撑计划(2014BAC24B01,2014BAL05B03,2015BAD21B03) （2014BAC24B01,2014BAL05B03,2015BAD21B03）
