Treatment of textile industry effluents with up-flow anaerobic sulfidogenic reactor

IF 2.8 4区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of chemical technology and biotechnology Pub Date : 2024-06-20 DOI:10.1002/jctb.7699

Gülayşe Özkaymak, Aybüke Nur Şahan, Elif Yakamercan, Yakup Çakmak, Deniz Uçar

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引用次数: 0

Abstract

BACKGROUND

Dyes present in textile wastewater can pose various environmental problems, including toxicity, carcinogenicity and mutagenicity, when released into receiving environments. Sulfidogenic bacteria play a crucial role in wastewater treatment by reducing sulfate and producing sulfide through the utilization of organic compounds in water. The resulting sulfide often transfers its electrons to another electron acceptor. This study focused on the treatment of real textile wastewater using an up-flow sulfidogenic column bioreactor.

RESULTS

The reactor was acclimated to sulfate-reducing conditions when influent chemical oxygen demand and sulfate concentrations were 1742 and 2000 mg L⁻¹, respectively. Subsequently, a gradual transition was made from sulfate-reducing conditions to dye-reducing conditions. Throughout the study, the hydraulic retention time was maintained at 1 day.

CONCLUSION

The influent dye concentration was 2722 Pt-Co, and an impressive dye removal efficiency of approximately 90 ± 2% was achieved. This corresponds to a removal rate of 2450 Pt-Co L⁻¹ day⁻¹. Although the sulfide concentration in the reactor decreased in the last period, investigating the extent to which this sulfide participates in the dye removal may expand the use of sulfidogenic reactors in the treatment of real textile industry wastewater. © 2024 The Author(s). Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).

Abstract Image

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利用上流式厌氧硫化反应器处理纺织工业污水

背景纺织废水中的染料释放到接收环境中会造成各种环境问题，包括毒性、致癌性和致突变性。硫化细菌利用水中的有机化合物还原硫酸盐并产生硫化物，在废水处理中发挥着重要作用。产生的硫化物通常会将电子转移给另一个电子受体。结果当进水化学需氧量和硫酸盐浓度分别为 1742 mg L-1 和 2000 mg L-1 时，反应器适应了硫酸盐还原条件。随后，从硫酸盐还原条件逐渐过渡到染料还原条件。在整个研究过程中，水力停留时间保持在 1 天。这相当于 2450 Pt-Co L-1 天-1 的去除率。虽然反应器中的硫化物浓度在最后一段时间有所下降，但研究硫化物在染料去除中的参与程度可能会扩大硫化反应器在实际纺织工业废水处理中的应用。作者：© 2024。化学技术和生物技术期刊》由约翰威利和桑斯有限公司代表化学工业学会（SCI）出版。

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

Journal of chemical technology and biotechnology 工程技术-工程：化工

CiteScore

7.00

自引率

5.90%

发文量

268

审稿时长

1.7 months

期刊介绍： Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.