环境工程学报2017，Vol.11Issue(11)：6014-6021,8.DOI:10.12030/j.cjee.201702001
猪粪与污泥不同配比对其厌氧共消化与微生物多样性的影响
Impacts of different mix ratio of pig manure and dewatered sludge on anaerobic digestion performance and microbial community diversity
摘要
Abstract
In order to investigate the effects of substrate mix ratio on the reactor performance and microbial community diversity of anaerobic mesophilic co-digester when treated pig manure (PM) and dewatered sludge (DS),lab-scale tests were carried out at five volatile solid (VS) ratios of PM/DS at 1 ∶ 0,2 ∶ 1,1 ∶ 1,1 ∶ 2,and 0∶ 1.16S rRNA amplicon high-throughput sequencing was also applied to reveal the microbial community composition.Results showed that digestion efficiency was improved significantly by the addition of PM.When ratio of PM∶ DS is 2∶ 1,the optimal methane daily production reached 684 L · kg-1VS,which was 120％ higher than DS alone.At this point,VS remove rate also increased to 63.1％ without restriction of accumulative VFA concentration.Meanwhile,dominant genus in codigestion group include Bacteroides,Clostridium,Methanosaeta and Methanosarcina.Redundancy analysis revealed methane conversion was mainly dominated by hydrogenotrophic pathway.Co-digestion of PM increased microbial community diversity then promoted synergistic effects between different species,finally better digestion performance was achieved.关键词
厌氧消化/脱水污泥/猪粪/甲烷/微生物群落Key words
anaerobic digestion/dewater sludge/pig manure/methane/microbial community分类
资源环境引用本文复制引用
ALOUN Manosane,杨朝晖,徐锐,李娟,张益杰,周焱,王庆鹏,柏洋..猪粪与污泥不同配比对其厌氧共消化与微生物多样性的影响[J].环境工程学报,2017,11(11):6014-6021,8.基金项目
国家自然科学基金资助项目(51578223,51521006,51378189) （51578223,51521006,51378189）
