Responses of nitrobenzene removal performance and microbial community by modified biochar supported zerovalent iron in anaerobic soil.

Lu Hainan, Li Peng, Li Qingqing, Liu Fang, Zhou Dong, Huang Shenfa, Yang Jie, Li Zhiheng

Abstract read

In one paragraph

Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Lu HainanMinistry of Ecology and Environment Engineering Center for Urban Soil Contamination Control and Remediation, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China.

Li PengMinistry of Ecology and Environment Engineering Center for Urban Soil Contamination Control and Remediation, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China.

Li QingqingMinistry of Ecology and Environment Engineering Center for Urban Soil Contamination Control and Remediation, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China.

Liu FangMinistry of Ecology and Environment Engineering Center for Urban Soil Contamination Control and Remediation, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China.

Zhou DongMinistry of Ecology and Environment Engineering Center for Urban Soil Contamination Control and Remediation, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China.

Huang ShenfaShanghai Technology Center for Reduction of Pollution and Carbon Emissions, Shanghai, 200235, China.

Yang JieMinistry of Ecology and Environment Engineering Center for Urban Soil Contamination Control and Remediation, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China. yangj@saes.sh.cn.

Li ZhihengSchool of Environmental Science and Engineering, Key Laboratory of Solid Waste Treatment and Recycling of Zhejiang Province, Zhejiang Gongshang University, Hangzhou, 310018, Zhejiang Province, China.

Funding

2022 Shanghai Oriental Talent Plan Leading Project 16thNational Key Research and Development Program of China 2023YFC3709600

6 · The paper itself

Abstract

Biochar-supported ZVI have received increasing attention for their potential to remove nitrobenzene in groundwater and soil. However, the capacity of this material to enhance the biological reduction of nitrobenzene and alter microbial communities in anaerobic groundwater have not been explored. In this study, the nitrobenzene removal performance and mechanism of modified biochar-supported zerovalent iron (ZVI) composites were explored in anaerobic soil. The results showed that the 700 °C biochar composite enhanced the removal of nitrobenzene and inhibited its release from soil to the aqueous phase. NaOH-700-Fe50 had the highest removal rate of nitrobenzene, reaching 64.4%. However, the 300 °C biochar composite inhibited the removal of nitrobenzene. Microbial degradation rather than ZVI-mediated reduction was the main nitrobenzene removal pathway. The biochar composites changed the richness and diversity of microbial communities. ZVI enhanced the symbiotic relationship between microbial genera and weakened competition between soil microbial genera. In summary, the 700 °C modified biochar composite enhanced the removal of nitrobenzene by increasing microbial community richness and diversity, by upregulating functional genes, and by promoting electron transfer. Overall, the modified biochar-supported ZVI composites could be used for soil remediation, and NaOH-700-Fe50 is a promising composite material for the on-site remediation of nitrobenzene-contaminated groundwater.

Indexed as

CharcoalIronNitrobenzenesSoil MicrobiologyAnaerobiosisBiodegradation, EnvironmentalGroundwaterMicrobiotaSoilSoil PollutantsbiocharCharcoalIronnitrobenzeneNitrobenzenesSoilSoil PollutantsAnaerobic soilMicrobial communityModified biocharNitrobenzeneZVI

Identifiers

PMID39048602

DOI10.1038/s41598-024-67301-5

PMCPMC11269609

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.