改性麦秸生物炭固定化高度可降解微生物群落去除苯并[a]芘。

IF 5.8 3区环境科学与生态学 0 ENVIRONMENTAL SCIENCES

Environmental Science and Pollution Research Pub Date : 2024-12-06 DOI:10.1007/s11356-024-35717-1

Xiaoxiao Chen, Rong Meng, Meihui Geng, Jiahui Zhou, Yuewu Pu

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引用次数: 0

摘要

苯并[a]芘（BaP）是一种高分子量多环芳烃（hw - pahs），是一种普遍存在的有机污染物。由于各种环境因素的影响，污染土壤中多环芳烃降解菌的生存力和降解能力显著降低。因此，保持微生物活性，提高降解效率势在必行。本研究旨在优化生物炭固定化BaP去除效果，以提高微生物群落的降解潜力。改性小麦秸秆生物炭（MWBC）的固定化显著提高了石油污染土壤中富集的高效微生物群落对BaP （5-20 mg/L）的去除效率，在矿物盐培养基中，12 d的去除效率高达75.18%。以及对管理实际污染场地的挑战和困难的评估。

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Removal of benzo[a]pyrene by a highly degradable microbial community immobilized by modified wheat straw biochar

Benzo[a]pyrene (BaP), a high-molecular-weight polycyclic aromatic hydrocarbon (HMW-PAHs), is a prevalent organic pollutant. Due to various environmental factors, the viability and degradation capacity of PAHs-degrading bacteria in contaminated soil are significantly reduced. Therefore, it is imperative to maintain microbial activity and enhance degradation efficiency. This study aims to optimize BaP removal by utilizing biochar-immobilized BaP for the enhancement of microbial communities’ degradative potential. The immobilization of modified wheat straw biochar (MWBC) significantly enhanced the removal efficiency of BaP by a highly efficient microbial community enriched from oil-contaminated soil, achieving a large removal efficiency of 75.18% for BaP (5–20 mg/L) in a mineral salts medium in 12 d. The study also involved a detection of the species richness and intermediate metabolites of microbial community, as well as an assessment of the challenges and difficulties associated with managing real contaminated sites.

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来源期刊

Environmental Science and Pollution Research 环境科学-环境科学

CiteScore

8.70

自引率

17.20%

发文量

6549

审稿时长

3.8 months

期刊介绍： Environmental Science and Pollution Research (ESPR) serves the international community in all areas of Environmental Science and related subjects with emphasis on chemical compounds. This includes: - Terrestrial Biology and Ecology - Aquatic Biology and Ecology - Atmospheric Chemistry - Environmental Microbiology/Biobased Energy Sources - Phytoremediation and Ecosystem Restoration - Environmental Analyses and Monitoring - Assessment of Risks and Interactions of Pollutants in the Environment - Conservation Biology and Sustainable Agriculture - Impact of Chemicals/Pollutants on Human and Animal Health It reports from a broad interdisciplinary outlook.