典型文献
Comparison of different valent iron on anaerobic sludge digestion:Focusing on oxidation reduction potential,dissolved organic nitrogen and microbial community
文献摘要：
This study compared effects of three different valent iron(Fe0,Fe(Ⅱ)and Fe(Ⅲ))on enhanced anaerobic sludge digestion,focusing on the changes of oxidation reduction potential(ORP),dissolved organic nitrogen(DON),and microbial community.Under the same iron dose in range of 0-160 mg/L after an incubation period of 30 days(d),the maximum methane production rate of sludge samples dosed with respective Fe0,Fe(Ⅱ)and Fe(Ⅲ)at the same concentration showed indiscernible differences at each iron dose,regardless of the different iron valence.Moreover,their behavior in changes of ORP,DON and microbial community was different:(1)the addition of Fe0 made the ORP of sludge more negative,and the addition of Fe(Ⅱ)and Fe(Ⅲ)made the ORP of sludge less negative.However,whether being more or less negative,the changes of ORP may show unobservable effects on methane yield when it ranged from-278.71 to-379.80 mV;(2)the degradation of dissolved organic nitrogen,particularly proteins,was less efficient in sludge samples dosed with Fe compared with those dosed with Fe(Ⅱ)and Fe(Ⅲ)after an incubation period of 30 d.At the same dose of 160 mg/L iron,more cysteine was noted in sludge samples dosed with Fe(Ⅱ)(30.74 mg/L)and Fe(Ⅲ)(27.92 mg/L)compared with that dosed with Fe0(21.75 mg/L);(3)Fe0 particularly promoted the enrichment of Geobacter,and it was 6 times higher than those in sludge samples dosed with Fe(Ⅱ)and Fe(Ⅲ)at the same dose of 160 mg/L iron.
文献关键词：
中图分类号：
作者姓名：
Zecong Yu;Keke Xiao;Yuwei Zhu;Mei Sun;Sha Liang;Jingping Hu;Huijie Hou;Bingchuan Liu;Jiakuan Yang
作者机构：
School of Environmental Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Hubei Provincial Engineering Laboratory of Solid Waste Treatment,Disposal and Recycling,Wuhan 430074,China;State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China
文献出处：
引用格式：
[1]Zecong Yu;Keke Xiao;Yuwei Zhu;Mei Sun;Sha Liang;Jingping Hu;Huijie Hou;Bingchuan Liu;Jiakuan Yang-.Comparison of different valent iron on anaerobic sludge digestion:Focusing on oxidation reduction potential,dissolved organic nitrogen and microbial community)[J].环境科学与工程前沿,2022(06):159-170
A类：
indiscernible
B类：
Comparison,different,valent,iron,anaerobic,sludge,digestion,Focusing,oxidation,reduction,potential,dissolved,organic,nitrogen,microbial,community,This,study,compared,effects,three,Fe0,enhanced,focusing,changes,ORP,DON,Under,same,after,incubation,period,days,maximum,methane,production,rate,samples,dosed,respective,concentration,showed,differences,each,regardless,valence,Moreover,their,behavior,was,addition,made,more,negative,However,whether,being,may,unobservable,yield,when,ranged,from,mV,degradation,particularly,proteins,efficient,those,At,cysteine,noted,that,promoted,enrichment,Geobacter,times,higher
AB值：
0.37176
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