化工进展2026，Vol.45Issue(4)：2443-2452,10.DOI:10.16085/j.issn.1000-6613.2025-0645
Fe3O4强化厌氧动态膜生物反应器处理黑水性能与机制
Enhancing performance and mechanisms of anaerobic dynamic membrane bioreactor for black water treatment using Fe3O4
摘要
Abstract
Anaerobic digestion technology has been widely used in wastewater treatment because of its low energy consumption and high efficiency of organic matter degradation.However,the low conversion of organic matter,limited treatment efficiency and membrane pollution have seriously affected the popularization and application of anaerobic dynamic membrane bioreactor(AnDMBR).Therefore,in order to find effective technical means to optimize reactor performance,mitigate membrane contamination,and improve treatment efficiency,two sets of AnDMBR reactors were constructed.The purpose was to investigate the effects of Fe3O4 on the performance of AnDMBR,especially in methanogenesis efficiency,membrane pollution,electron transport efficiency,key enzyme activity,microbial community structure and other aspects of improvement.The experimental results showed that the addition of Fe3O4 significantly improved the COD removal rate.When the load was 1.2g COD/(L·d),the COD removal rate in the R2 group reached 97.14%±2.22%.In addition,Fe3O4 significantly enhanced methanogenic capacity.At an organic load of 1.2g COD/(L·d),the specific methanogenic rate in the R2 group was(157.04±4.70)mL CH4/g CODremoved and performed better than the control group.Fe3O4 also improved the filtration performance of the membrane by slowing the membrane fouling process and reducing the membrane's transmembrane pressure difference(TMP).Further electron transport efficiency tests showed that Fe3O4 significantly improved the conductivity and electron transport activity of the sludge,promoting direct electron transfer(DIET)between microorganisms.Microbial community analysis showed that the addition of Fe3O4 changed the composition of microorganisms in the reactor,promoted the enrichment of electroactive microorganisms and methanogens,and enhanced the stability and treatment efficiency of the anaerobic digestion system.By analyzing the functional mechanism of Fe3O4 in the reactor,the optimization potential of Fe3O4 as an exogenous conductive medium in the anaerobic dynamic membrane reactor was evaluated,in order to provide theoretical basis and technical support for improving the efficiency of wastewater treatment and anaerobic digestion.关键词
四氧化三铁/厌氧动态膜/电子传递/微生物Key words
triiron tetraoxide(Fe3O4)/anaerobic dynamic membrane/electron transport/microorganism分类
资源环境引用本文复制引用
潘伟亮,何秋宏,古励,何强,李勇,张浩程..Fe3O4强化厌氧动态膜生物反应器处理黑水性能与机制[J].化工进展,2026,45(4):2443-2452,10.基金项目
重庆市技术创新与应用发展专项重点项目(CSTB2022TIAD-KPX0201) （CSTB2022TIAD-KPX0201）
重庆市自然科学基金(CSTB2022NSCQ-MSX1438) （CSTB2022NSCQ-MSX1438）
重庆市研究生联合培养基地项目(JDLHPYJD2024004) （JDLHPYJD2024004）
重庆交通大学研究生科创基金(2024S0066,2024S0054). （2024S0066,2024S0054）
