典型文献
New insights into different surfactants'impacts on sludge fermentation:Focusing on the particular metabolic processes and microbial genetic traits
文献摘要：
Surfactants were expected to exhibit positive effects on the waste activated sludge(WAS)disposal.However,the systematic comparison of different categories of surfactants on the WAS fermentation and the functional mechanisms,especially microbial metabolic traits,have not yet been precisely explored.This study revealed the positive effects of different surfactants on the volatile fatty acid(VFA)production,which followed the order of alkyl polysaccharides(APG)＞sodium dodecylbenzene sulfonate(SDBS)＞hexadecyl trimethyl ammonium bromide(HTAB).Mechanistic exploration found that the presence of different surfactants improved solubilization and hydrolysis steps,and then contributed to the subsequent acidification with different efficiencies.The functional microorganisms associated with VFA generation were enriched in surfactant-conditioned reactors.Metagenomic analysis further indicated that the key genes involved in the particular process of VFA generation were over-expressed.The simultaneous bioavailable substrate improvement,functional bacterial enrich-ment,and metabolic activity upregulation induced by different surfactants jointly contributed to VFA promotion during WAS fermentation.This study could provide a comprehensive realization of surfactants'impacts on the WAS fermentation process,and more importantly,it reminded the public to discern the distinct interplaying effects induced by different chemicals in regulating the WAS disposal and resource recovery.
文献关键词：
中图分类号：
作者姓名：
Jingyang Luo;Shiyu Fang;Wenxuan Huang;Feng Wang;Le Zhang;Fang Fang;Jiashun Cao;Yang Wu;Dongbo Wang
作者机构：
Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes,Ministry of Education,Hohai University,Nanjing 210098,China;College of Environment,Hohai University,Nanjing 210098,China;State Key Laboratory of Pollution Control and Resource Reuse,School of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;College of Environmental Science and Engineering,Hunan University,Changsha 410082,China
文献出处：
引用格式：
[1]Jingyang Luo;Shiyu Fang;Wenxuan Huang;Feng Wang;Le Zhang;Fang Fang;Jiashun Cao;Yang Wu;Dongbo Wang-.New insights into different surfactants'impacts on sludge fermentation:Focusing on the particular metabolic processes and microbial genetic traits)[J].环境科学与工程前沿,2022(08):121-134
A类：
hexadecyl,reminded,interplaying
B类：
New,insights,into,different,surfactants,impacts,sludge,fermentation,Focusing,particular,metabolic,processes,microbial,genetic,traits,Surfactants,were,expected,exhibit,positive,effects,waste,activated,WAS,disposal,However,systematic,comparison,categories,functional,mechanisms,especially,have,not,yet,been,precisely,explored,This,study,revealed,volatile,fatty,VFA,production,which,followed,order,alkyl,polysaccharides,APG,sodium,dodecylbenzene,sulfonate,SDBS,trimethyl,ammonium,bromide,HTAB,Mechanistic,exploration,found,that,presence,improved,solubilization,hydrolysis,steps,then,contributed,subsequent,acidification,efficiencies,microorganisms,associated,generation,enriched,conditioned,reactors,Metagenomic,analysis,further,indicated,key,genes,involved,expressed,simultaneous,bioavailable,substrate,improvement,bacterial,activity,upregulation,induced,by,jointly,promotion,during,could,provide,comprehensive,realization,more,importantly,public,discern,distinct,chemicals,regulating,resource,recovery
AB值：
0.593126
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