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Comprehensive Study of Different Multifunctional Membranes with Fenton Oxidation and Ultrafiltration for Real Industrial Wastewater Treatment
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2023-07-12 , DOI: 10.1021/acs.iecr.3c01446 Yi Ren 1 , Weiming Zhang 2 , Longguo Li 1 , Bo Lai 3
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2023-07-12 , DOI: 10.1021/acs.iecr.3c01446 Yi Ren 1 , Weiming Zhang 2 , Longguo Li 1 , Bo Lai 3
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Integrating catalytic oxidation and ultrafiltration in multifunctional membranes seems a promising method to strengthen wastewater treatment, and multiple strategies developed for further enhancement of multifunctional membranes have been focused upon recently. However, a comprehensive evaluation of multifunctional membranes and their strengthened variants compared with separate oxidation and ultrafiltration units using real industrial wastewater is still absent. In this study, a traditional multifunctional membrane and multifunctional membranes strengthened by catalyst enhancement, catalyst loading enhancement, and oxidation/ultrafiltration sequence optimization were synthesized for the real industrial wastewater treatment, compared with separate units of oxidation and ultrafiltration. The membrane structure was characterized by various methods, treatment efficiency and membrane fouling were evaluated, and stability for long-term operation was investigated by analysis of the decontamination performance decline and membrane characterization. The results indicate that direct immobilization of the catalyst in an ultrafiltration membrane might sacrifice the decontamination performance. Strengthening the multifunctional membrane by catalyst activity and catalyst loading enhancement could improve decontamination and antifouling performance, while it would reduce the stability due to high oxidative activity on the membrane matrix. Optimizing the sequence of ultrafiltration before catalytic oxidation in the multifunctional membrane could efficiently improve the treatment efficiency and stability, while the antifouling performance would be weakened greatly. Multifunctional membrane development can strengthen wastewater treatment indeed in some respects, but their shortcomings should be carefully considered as well. We believe this study gives a new understanding on multifunctional catalytic oxidation and ultrafiltration membrane-based systems, and provides guidance regarding their practical application for wastewater treatment.
中文翻译：
芬顿氧化和超滤不同多功能膜在实际工业废水处理中的综合研究
将催化氧化和超滤集成在多功能膜中似乎是一种有前途的加强废水处理的方法，并且为进一步增强多功能膜而开发的多种策略最近受到关注。然而，与使用真实工业废水的单独氧化和超滤装置相比，仍然缺乏对多功能膜及其增强型变体的综合评估。在本研究中，针对实际工业废水处理，合成了传统的多功能膜和通过催化剂增强、催化剂负载增强和氧化/超滤序列优化增强的多功能膜，与单独的氧化和超滤单元进行了比较。通过各种方法对膜结构进行表征，评估处理效率和膜污染，并通过分析去污性能下降和膜表征来研究长期运行的稳定性。结果表明，将催化剂直接固定在超滤膜中可能会牺牲去污性能。通过催化剂活性和催化剂负载量增强来强化多功能膜可以提高去污和防污性能，但由于膜基质的高氧化活性，会降低稳定性。优化多功能膜催化氧化前的超滤顺序可以有效提高处理效率和稳定性，但防污性能会大大减弱。多功能膜的开发确实可以在某些方面加强废水处理，但也应仔细考虑其缺点。我们相信这项研究使人们对基于多功能催化氧化和超滤膜的系统有了新的认识，并为其在废水处理中的实际应用提供了指导。
更新日期：2023-07-12
中文翻译：
芬顿氧化和超滤不同多功能膜在实际工业废水处理中的综合研究
将催化氧化和超滤集成在多功能膜中似乎是一种有前途的加强废水处理的方法，并且为进一步增强多功能膜而开发的多种策略最近受到关注。然而，与使用真实工业废水的单独氧化和超滤装置相比，仍然缺乏对多功能膜及其增强型变体的综合评估。在本研究中，针对实际工业废水处理，合成了传统的多功能膜和通过催化剂增强、催化剂负载增强和氧化/超滤序列优化增强的多功能膜，与单独的氧化和超滤单元进行了比较。通过各种方法对膜结构进行表征，评估处理效率和膜污染，并通过分析去污性能下降和膜表征来研究长期运行的稳定性。结果表明，将催化剂直接固定在超滤膜中可能会牺牲去污性能。通过催化剂活性和催化剂负载量增强来强化多功能膜可以提高去污和防污性能，但由于膜基质的高氧化活性，会降低稳定性。优化多功能膜催化氧化前的超滤顺序可以有效提高处理效率和稳定性，但防污性能会大大减弱。多功能膜的开发确实可以在某些方面加强废水处理，但也应仔细考虑其缺点。我们相信这项研究使人们对基于多功能催化氧化和超滤膜的系统有了新的认识，并为其在废水处理中的实际应用提供了指导。
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