Efficacy of a Bioelectrochemical System Advanced Oxidation Process (BES-AOP) In-situ Persulfate Activator System Under Applied Potentials to Treat Multipollutants from Industrial Effluents in Fed-Batch Mode

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-10-09 DOI:10.1007/s11270-025-08666-9

Valeed Ahmed Khan, Rajesh Singh

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引用次数: 0

Abstract

Efficient and environmentally friendly persulfate (PS)-based treatments have received increasing attention as an alternative to wastewater treatment. The PS activation to generate radical species typically requires external energy input or toxic metal catalysts at higher treatment costs or the addition of potential new contaminants. In this study, PS was activated through a microbial process to evaluate the effect of input of persulfate, varied applied potential and fed-batch mode on treating industrial effluent. This study integrates a sulfate-reducing bacteria (SRB)-bioelectrochemical system (BES) with PS oxidation to enhance system efficacy. The total organic carbon (TOC) reduction peaked at 84.22% at 300 mV, which was enhanced by 30–43% through sulfate radical-based oxidation with complete discoloration of effluent. Removing nitrogenous components beyond 2nd cycle linearly enhanced from 31.90% to 44.86% in Control to BES-450 mV. Applied potential significantly reduced heavy metals ions, however, synergisms of PS and applied potential significantly dropped Cu removal. An antagonistic effect on alkaline earth metals at Stages I and II was observed from 150 to 450 mV. This system improves treatment efficiency and reduces operational costs, offering a new approach to a sustainable mature technology to treat recalcitrant organic pollutants in common industrial effluents of fluctuating quality.

查看原文本刊更多论文

生物电化学系统高级氧化工艺（BES-AOP）原位过硫酸盐活化剂系统处理进料-批式工业废水中多种污染物的应用效果

高效、环保的过硫酸盐（PS）基处理作为废水处理的替代方案越来越受到关注。PS活化产生自由基通常需要外部能量输入或有毒金属催化剂，处理成本较高，或添加潜在的新污染物。本研究通过微生物工艺对PS进行活化，评价了过硫酸盐投加量、不同应用潜力和投料间歇式处理工业废水的效果。本研究将硫酸盐还原菌(SRB)-生物电化学系统（BES）与PS氧化相结合，以提高系统效能。在300 mV下，总有机碳（TOC）的降幅达到84.22%，通过硫酸盐自由基氧化，出水完全变色，总有机碳（TOC）的降幅达到30-43%。在控制至BES-450 mV时，2次循环后的含氮组分去除率从31.90%线性提高到44.86%。外加电位显著降低了重金属离子，但PS和外加电位的协同作用显著降低了Cu的去除率。在150 ~ 450 mV范围内，对ⅰ和ⅱ阶段碱土金属有拮抗作用。该系统提高了处理效率，降低了运行成本，为处理水质波动的常见工业废水中的顽固性有机污染物提供了一条可持续的成熟技术途径。

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

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.