工业废水处理中群体猝灭膜生物反应器的生物污染缓解和微生物群落动态

IF 6.3 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2025-07-25 DOI:10.1016/j.jwpe.2025.108379

Rabia Ardic-Demirbilekli , Semanur Korkusuz-Soylu , Borte Kose-Mutlu , Ismail Koyuncu

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引用次数: 0

摘要

研究了群体猝灭（QQ）机制在膜生物反应器（mbr）中处理含盐、硫酸盐、铅等无机污染物的工业废水中的效率和适用性。以石油天然气生产废水、水泥工业废水和纺织工业废水为主要无机污染物，进行了QQ MBR半中试试验。以Rhodococcus sp. BH4细菌作为QQ细菌，对有机物的去除效率没有负面影响，表明半中试QQ MBR系统具有抗毒性冲击的能力。结果表明，QQ MBR显著降低了盐、铅和硫酸盐胁迫下的跨膜压力（TMP）。与对照MBR相比，QQ MBR的可溶性微生物产物（SMP）和胞外聚合物（EPS）浓度较低，而这两种物质是生物膜形成的关键因素。微生物群落分析表明，QQ成功地保持了运行稳定性，同时调节细菌数量以减少生物膜的形成。这项研究强调了MBR系统利用QQ机制解决工业废水处理挑战的潜力，为提高能源效率和延长膜在可变操作条件下的寿命提供了一个有前途的解决方案。

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Biofouling mitigation and microbial community dynamics in the quorum quenching membrane bioreactors for industrial wastewater treatment

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Biofouling mitigation and microbial community dynamics in the quorum quenching membrane bioreactors for industrial wastewater treatment

The research investigates the efficiency and applicability of quorum quenching (QQ) mechanism in membrane bioreactors (MBRs) in the treatment of industrial wastewater rich in inorganic pollutants such as salinity, sulfate and lead. In the study, a semi-pilot QQ MBR system was operated with inorganic pollutants representing petroleum and natural gas production wastewater, cement industry wastewater and textile industry wastewater. Rhodococcus sp. BH4 bacteria used as QQ bacteria did not have a negative effect on the organic matter removal efficiency and it was demonstrated that semi-pilot QQ MBR system is resistant to toxic shocks. The results showed that QQ MBR significantly reduced transmembrane pressure (TMP) increases under salinity, lead, and sulfate stress conditions. Moreover, QQ MBR had lower concentrations of soluble microbial products (SMP) and extracellular polymeric substances (EPS), which are key factors in biofilm formation, compared to Control MBR. Microbial community analysis revealed that QQ successfully maintained operational stability while regulating bacterial populations to minimize biofilm formation. This study highlights the potential of MBR systems utilizing the QQ mechanism to address challenges in industrial wastewater treatment, providing a promising solution to improve energy efficiency and extend membrane life under variable operational conditions.

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies