典型文献
Potassium ferrate pretreatment promotes short chain fatty acids yield and antibiotics reduction in acidogenic fermentation of sewage sludge
文献摘要：
During the acidogenic fermentation converting waste activated sludge(WAS)into short-chain fatty acids(SCFA),hydrolysis of complex organic polymers is a limiting step and the transformation of harmful substances(such as antibiotics)during acidogenic fermentation is unknown.In this study,potassium ferrate(K2FeO4)oxidation was used as a pretreatment strategy for WAS acidogenic fermentation to increase the hydrolysis of sludge and destruct the harmful antibiotics.Pretreatment with K2FeO4 can effectively increase the SCFA pro-duction during acidogenic fermentation and change the distribution of SCFA components.With the dosage of 0.2 g/g TS,the maximum SCFA yield was 4823 mg COD/L,which is 28.3 times that of the control group;acetic acid accounts for more than 90％of the total SCFA.The higher dosage(0.5 g/g TS)can further increase the proportion of acetic acid,but inhibit the overall performance of SCFA production.Apart from the promotion of hydrolysis and aci-dogenesis,K2FeO4 pretreatment can also simultaneously oxidizes and degrades part of the antibiotics in the sludge.When the dosage is 0.5 g/g TS,the degradation efficacy of antibi-otics is the most significant,and the contents of ofloxacin,azithromycin,and tetracycline in the sludge are reduced by 69％,42％,and 50％,respectively.In addition,K2FeO4 pretreat-ment can also promote the release of antibiotics from sludge flocs,which is conducive to the simultaneous degradation of antibiotics in the subsequent biological treatment process.
文献关键词：
中图分类号：
作者姓名：
Zihao Qiao;Suyun Xu;Wanqiu Zhang;Shuyin Shi;Wei Zhang;Hongbo Liu
作者机构：
School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China;Centillion Resource Recycling(Wuxi)Co.Ltd.,Wuxi 214000,China
文献出处：
引用格式：
[1]Zihao Qiao;Suyun Xu;Wanqiu Zhang;Shuyin Shi;Wei Zhang;Hongbo Liu-.Potassium ferrate pretreatment promotes short chain fatty acids yield and antibiotics reduction in acidogenic fermentation of sewage sludge)[J].环境科学学报（英文版）,2022(10):41-52
A类：
acidogenic,aci,dogenesis,antibi
B类：
Potassium,ferrate,pretreatment,promotes,short,chain,fatty,acids,yield,antibiotics,reduction,fermentation,sewage,sludge,During,converting,waste,activated,WAS,into,SCFA,hydrolysis,complex,organic,polymers,limiting,step,transformation,harmful,substances,such,during,unknown,In,this,study,potassium,K2FeO4,oxidation,used,strategy,increase,destruct,Pretreatment,effectively,change,distribution,components,With,dosage,TS,maximum,COD,which,times,that,control,group,acetic,accounts,more,than,total,higher,further,proportion,inhibit,overall,performance,production,Apart,from,promotion,also,simultaneously,oxidizes,degrades,When,degradation,efficacy,most,significant,contents,ofloxacin,azithromycin,tetracycline,are,reduced,by,respectively,addition,release,flocs,conducive,subsequent,biological,process
AB值：
0.452746
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
