典型文献
Compared effects of"solid-based"hydrogen peroxide pretreatment on disintegration and properties of waste activated sludge
文献摘要:
The effects of two solid-based hydrogen peroxides sodium percarbonate(SPC)and calcium peroxide(CP)on waste activated sludge(WAS)disintegration were investigated.Both oxidants achieved efficient WAS disintegration for the synergistic effect of alkaline and oxidation.The strong alkaline condition led to the leakage of ammonia and the existence of abundant calcium ions accelerated the fixation of phosphorus via precipitation in CP WAS disintegration process.However,the spongy-like layer and low pH condition retarded the release of gaseous ammonia in SPC group.Hydroxyl radical was the main oxygen reactive species in SPC approaches which were more intense than CP by electron spin resonance(ESR)analysis.CP treated WAS contented more small particle size matter and total suspended solids(TSS)increased dramatically.In conclusion,CP pretreated sludge was more suitable for fertilization,while SPC was in favor of anaerobic digestion.This study clarified the differences between these two oxidants and their intermediates on nutrients release in sludge disintegration.
文献关键词:
中图分类号:
作者姓名:
Hai-Chao Luo;Wan-Qian Guo;Qi Zhao;Hua-Zhe Wang;Nan-Qi Ren
作者机构:
State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China
文献出处:
引用格式:
[1]Hai-Chao Luo;Wan-Qian Guo;Qi Zhao;Hua-Zhe Wang;Nan-Qi Ren-.Compared effects of"solid-based"hydrogen peroxide pretreatment on disintegration and properties of waste activated sludge)[J].中国化学快报(英文版),2022(03):1293-1297
A类:
percarbonate,contented
B类:
Compared,effects,hydrogen,pretreatment,disintegration,properties,waste,activated,sludge,two,peroxides,sodium,SPC,calcium,CP,WAS,were,investigated,Both,oxidants,achieved,efficient,synergistic,alkaline,oxidation,strong,condition,led,leakage,ammonia,existence,abundant,ions,accelerated,fixation,phosphorus,via,precipitation,process,However,spongy,like,layer,low,retarded,release,gaseous,group,Hydroxyl,radical,main,oxygen,reactive,species,approaches,which,more,intense,than,by,electron,spin,resonance,ESR,analysis,small,particle,size,matter,total,suspended,solids,TSS,increased,dramatically,In,conclusion,pretreated,suitable,fertilization,while,favor,anaerobic,digestion,This,study,clarified,differences,between,these,their,intermediates,nutrients
AB值:
0.592285
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