典型文献
Enhanced metronidazole removal by binary-species photoelectrogenic biofilm of microaglae and anoxygenic phototrophic bacteria
文献摘要：
High efficient removal of antibiotics during nutriments recovery for biomass production poses a major technical challenge for photosynthetic microbial biofilm-based wastewater treatment since antibiotics are always co-exist with nutriments in wastewater and resist biodegradation due to their strong biotoxicity and recalcitrance.In this study,we make a first attempt to enhance metronidazole(MNZ)removal from wastewater using electrochemistry-activated binary-species photosynthetic biofilm of Rhodopseudomonas Palustris(R.Palustris)and Chlorella vulgaris(C.vulgaris)by cultivating them under different applied potentials.The results showed that application of external potentials of-0.3,0 and 0.2 V led to 11,33 and 26-fold acceleration in MNZ removal,respectively,as compared to that of potential free.The extent of enhancement in MNZ removal was positively correlated to the intensities of photosynthetic current produced under different externally applied potentials.The binary-species photoelectrogenic biofilm exhibited 18 and 6-fold higher MNZ removal rate than that of single-species of C.vulgaris and R.Palustris,respectively,due to the enhanced metabolic interaction between them.Application of an external potential of 0V significantly promoted the accumulation of tryptophan and tyrosine-like compounds as well as humic acid in ex-tracellular polymeric substance,whose concentrations were 7.4,7.1 and 2.0-fold higher than those produced at potential free,contributing to accelerated adsorption and reductive and photosensitive degradation of MNZ.
文献关键词：
中图分类号：
作者姓名：
Xubin Zhang;Jian Sun;Mengmeng Zhao
作者机构：
Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control,Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control,School of Environmental Science and Engineering,Institute of Environmental Health and Pollution Control,Guangdong University of Technology,Guangzhou 510006,China
文献出处：
引用格式：
[1]Xubin Zhang;Jian Sun;Mengmeng Zhao-.Enhanced metronidazole removal by binary-species photoelectrogenic biofilm of microaglae and anoxygenic phototrophic bacteria)[J].环境科学学报（英文版）,2022(05):25-36
A类：
photoelectrogenic,microaglae,anoxygenic,nutriments,Palustris
B类：
Enhanced,metronidazole,removal,by,binary,species,biofilm,phototrophic,bacteria,High,efficient,antibiotics,during,recovery,biomass,production,poses,major,technical,challenge,photosynthetic,microbial,wastewater,treatment,since,always,exist,resist,biodegradation,due,their,strong,biotoxicity,recalcitrance,In,this,study,make,first,attempt,MNZ,from,using,electrochemistry,activated,Rhodopseudomonas,Chlorella,vulgaris,cultivating,them,under,different,applied,potentials,results,showed,that,application,led,fold,acceleration,respectively,compared,free,extent,enhancement,positively,correlated,intensities,current,produced,externally,exhibited,higher,than,single,enhanced,metabolic,interaction,between,Application,0V,significantly,promoted,accumulation,tryptophan,tyrosine,like,compounds,well,humic,acid,tracellular,polymeric,substance,whose,concentrations,were,those,contributing,accelerated,adsorption,reductive,photosensitive
AB值：
0.523787
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