干旱区生态环境知识资源中心(Arid): The role of Fe-oxidizing bacteria (FeOB) and organic matters in As removal in the heavy-polluted arid soil

Arid

DOI	10.1016/j.ecoenv.2022.114126
	The role of Fe-oxidizing bacteria (FeOB) and organic matters in As removal in the heavy-polluted arid soil
	Ning, Xiang; Wang, Shengli; Long, Song; Li, Longrui; Dong, Suhang; Nan, Zhongren
通讯作者	Wang, SL
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN	0147-6513
EISSN	1090-2414
出版年	2022
卷号	245
英文摘要	The bio-remediation of As-polluted farmlands in the arid area is seldomly reported. This study aimed at un-derstanding the impact of DOM, Fe-oxides, and FeOB biogeochemical processes on As remediation. The ap-proaches used included: FeOB strain Pseudomonas flavescens LZU-3; Batch-experiment. Our results showed that all FeOB tested effectively immobilized As (>95%) during microbial mineralization; DOM play an important role in the reduction of Fe(III)(hydr)oxides and As(V); Less-crystallized ferrihydrite transform to more-crystallized goethite and secondary minerals; Under the reaction of FeOB and DOM, the As-Fe-OM ternary compound were formed, containing N, S, C and O functional group; The addition of OM can clearly reduce soil Eh, pro-moting dissolution of As in bound to iron oxides, co-precipitation of the amorphous iron oxide in Fe(III)-OM-FeOB, closely related to As in bound to insoluble organics and sulfides and mineral residues, which plays an important role in controlling the mobilization of As. This study provides controlling of As transportation and transformation in the As-DOM-Bio-Fe ternary system as As-remediation technology in the arid soil.
英文关键词	As removal Arid soil remediation Organic matter FeOB Fe(III) (hydr)oxide
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000869715000001
WOS关键词	FRACTIONATION ; FERRIHYDRITE ; ADSORPTION ; REDUCTION ; RETENTION ; OXIDATION ; ARSENITE ; ARSENATE ; EXCHANGE ; MOBILITY
WOS类目	Environmental Sciences ; Toxicology
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392390
推荐引用方式 GB/T 7714	Ning, Xiang,Wang, Shengli,Long, Song,et al. The role of Fe-oxidizing bacteria (FeOB) and organic matters in As removal in the heavy-polluted arid soil[J],2022,245.
APA	Ning, Xiang,Wang, Shengli,Long, Song,Li, Longrui,Dong, Suhang,&Nan, Zhongren.(2022).The role of Fe-oxidizing bacteria (FeOB) and organic matters in As removal in the heavy-polluted arid soil.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,245.
MLA	Ning, Xiang,et al."The role of Fe-oxidizing bacteria (FeOB) and organic matters in As removal in the heavy-polluted arid soil".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 245(2022).