硫铁矿与木屑协同生物还原法去除水中锑酸盐的研究  

Removal of Antimonate from Water by Synergistic Biological Reduction of Pyrite and Wood Chips

作　　者：谢进 王潘婷 万东锦[1] 何巧冲 XIE Jin;WANG Panting;WAN Dongjin;HE Qiaochong(School of Environmental Engineering,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]河南工业大学环境工程学院,河南郑州450001

出　　处：《河南科技》2025年第4期74-78,共5页Henan Science and Technology

基　　金：国家自然科学基金青年基金“微生物介导硫铁矿氧化去除水中锑酸盐的作用机理”(NO.42207066);河南工业大学2022年度青年骨干教师培育计划项目;郑州市科技局自然科学项目,协同创新专项“硫铁矿强化循环养殖系统中氮去除机制及调控策略”(NO.22ZZRDZX13)。

摘　　要：【目的】构建硫铁矿和木屑基生物反应器(PWBR),探讨硫铁矿和木屑同时作为微生物还原电子供体去除水中Sb(V)的可行性。【方法】首先采用硫铁矿和木屑协同微生物异养还原法将锑酸盐Sb(V)还原为Sb(Ⅲ),其次通过沉淀去除水中Sb(V)。【结果】PWBR可对水中的Sb(Ⅴ)进行有效去除,去除率可达98.68%,稳态时出水SO_(4)^(2-)维持在1 mg/L以下,出水中未检测出硫化物。【结论】成功验证了微生物介导的硫铁矿与木屑复合体系在还原Sb(Ⅴ)并随之从水体中有效去除Sb(Ⅴ)及TSb的可行性与高效性,是一种具有创新意义且高效清洁的水处理技术,能够为应对水体锑污染问题提供有力支撑。[Purposes]A pyrite and wood chips-based bioreactor(PWBR)was constructed to explore the feasibility of using both pyrite and wood chips as electron donors for microbial reduction to remove Sb(V)from water.[Methods]Using a synergistic method of pyrite and wood chips combined with microbial het⁃erotrophic reduction,the objective was to reduce antimonate(Sb(V))to Sb(Ⅲ),followed by the removal of Sb(V)from water through precipitation.[Findings]The PWBR effectively removed Sb(Ⅴ)from water,achieving a removal rate of 98.68%.At steady state,the effluent sulfate(SO_(4)^(2-))concentration remained below 1 mg/L,and no sulfide was detected in the effluent.[Conclusions]This study successfully dem⁃onstrated the feasibility and efficiency of a microbial-mediated composite system of pyrite and wood chips in reducing Sb(Ⅴ)and subsequently effectively removing Sb(V)and total Sb(TSb)from water.This represents an innovative and efficient clean water treatment technology that provides significant scientific and technological support for addressing the increasingly severe problem of antimony pol⁃lution in water bodies.

关 键 词：PWBR 生物还原 锑酸盐 高效清洁 

分 类 号：X703[环境科学与工程—环境工程]