Sulfate-reducing bacteria in removal of pollutants: a promising candidate for bioremediation.

IF 4 3区生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

World journal of microbiology & biotechnology Pub Date : 2025-04-07 DOI:10.1007/s11274-025-04345-3

Panchami Sreeja Shaji, Salom Gnana Thanga Vincent, Karthikeyan Subburamu

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Abstract

Industrial processes contribute significantly to environmental pollution, particularly by releasing sulfate-rich wastewater containing toxic metals and organic pollutants. Sulfate-reducing bacteria (SRB), being anaerobic microorganisms, are capable of reducing sulfate to sulfide, which precipitates harmful heavy metals and facilitates bioremediation. This review explores the potential of SRB in industrial wastewater treatment, focusing on their roles in the bioremediation of sulfates, heavy metals, and persistent organic pollutants (POPs). Laboratory-scale experiments demonstrated that SRB effectively reduces sulfate concentrations and removes heavy metals such as zinc, cadmium, and chromium through sulfidogenesis. The treatment process shows promise as an eco-friendly alternative to conventional chemical methods. However, challenges related to hydrogen sulfide emissions and process scalability persist. Future research focuses on enhancing SRB activity through optimized bioreactor designs while effectively controlling H₂S release. This review emphasizes SRB as a promising candidate for industrial applications in wastewater treatment and environmental management.

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硫酸盐还原菌去除污染物：一种有前途的生物修复候选者。

工业过程严重造成环境污染，特别是释放含有有毒金属和有机污染物的富含硫酸盐的废水。硫酸盐还原菌（SRB）是一种厌氧微生物，能够将硫酸盐还原为硫化物，从而沉淀有害重金属，有利于生物修复。本文综述了SRB在工业废水处理中的潜力，重点介绍了它们在硫酸盐、重金属和持久性有机污染物（POPs）的生物修复中的作用。实验室规模的实验表明，SRB有效地降低了硫酸盐浓度，并通过硫化作用去除锌、镉和铬等重金属。这种处理方法有望成为传统化学方法的环保替代品。然而，与硫化氢排放和工艺可扩展性相关的挑战仍然存在。未来的研究重点是通过优化生物反应器设计来提高SRB活性，同时有效控制H2S的释放。本文着重介绍了SRB在废水处理和环境管理方面的工业应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

World journal of microbiology & biotechnology 工程技术-生物工程与应用微生物

CiteScore

6.30

自引率

2.40%

发文量

257

审稿时长

2.5 months

期刊介绍： World Journal of Microbiology and Biotechnology publishes research papers and review articles on all aspects of Microbiology and Microbial Biotechnology. Since its foundation, the Journal has provided a forum for research work directed toward finding microbiological and biotechnological solutions to global problems. As many of these problems, including crop productivity, public health and waste management, have major impacts in the developing world, the Journal especially reports on advances for and from developing regions. Some topics are not within the scope of the Journal. Please do not submit your manuscript if it falls into one of the following categories: · Virology · Simple isolation of microbes from local sources · Simple descriptions of an environment or reports on a procedure · Veterinary, agricultural and clinical topics in which the main focus is not on a microorganism · Data reporting on host response to microbes · Optimization of a procedure · Description of the biological effects of not fully identified compounds or undefined extracts of natural origin · Data on not fully purified enzymes or procedures in which they are applied All articles published in the Journal are independently refereed.