The Coupling of Catalysis with Submerged Ceramic Mf Membrane for Hybrid Water Treatment Process

Q3 Chemical Engineering

Chemical engineering transactions Pub Date : 2016-05-20 DOI:10.3303/CET1647042

T. Trinh, W. Samhaber

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引用次数: 3

Abstract

The purpose of coupling Microfiltration (MF) with the catalytic process is to separate suspended catalyst from a reaction solution. In this study, submerged ceramic membranes were used. Different operating modes of MF in combination with photocatalysis were investigated: (1) MF separation of the suspended catalyst without UV irradiation and reaction; (2) MF in connection with UV irradiation and active photocatalytic reaction, whereby the catalytic activities of TiO2 catalytic particles were determined and the catalytic reaction rates of suspended particles were compared with that of deposited particles as a cake layer on the membrane surface.The results of the first operating mode showed that a minimum cake layer of deposited catalytic particles on membrane surface was achieved which subsequently exhibited 10 % decline of normalized permeability by controlling the permeate flux.The TOC degradation by the photocatalytic activity with immobilized catalyst was obtained in the range between 61 % and 82 % while with the 0.5 g.L-1 catalytic particles in suspension the measured values was 91.2 % within a period of 2 hours irradiation in both investigated systems.

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浸没陶瓷Mf膜耦合催化混合水处理工艺研究

微滤与催化过程耦合的目的是将悬浮催化剂从反应溶液中分离出来。本研究采用浸没陶瓷膜。研究了光敏与光催化结合的不同操作模式:(1)光敏分离悬浮催化剂，不需要紫外线照射和反应;(2) MF与UV照射和活性光催化反应的关系，测定TiO2催化颗粒的催化活性，并比较悬浮颗粒与沉积颗粒作为饼层在膜表面的催化反应速率。第一种工作模式的结果表明，通过控制渗透通量，在膜表面沉积了最小的催化颗粒饼层，使归一化渗透率下降了10%。固定化催化剂对TOC的光催化降解率在61% ~ 82%之间，而固定化催化剂的光催化降解率为0.5 g。两种系统辐照2小时后，悬浮中L-1催化颗粒的测量值为91.2%。

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

Chemical engineering transactions Chemical Engineering-Chemical Engineering (all)

CiteScore

1.40

自引率

0.00%

发文量

审稿时长

6 weeks

期刊介绍： Chemical Engineering Transactions (CET) aims to be a leading international journal for publication of original research and review articles in chemical, process, and environmental engineering. CET begin in 2002 as a vehicle for publication of high-quality papers in chemical engineering, connected with leading international conferences. In 2014, CET opened a new era as an internationally-recognised journal. Articles containing original research results, covering any aspect from molecular phenomena through to industrial case studies and design, with a strong influence of chemical engineering methodologies and ethos are particularly welcome. We encourage state-of-the-art contributions relating to the future of industrial processing, sustainable design, as well as transdisciplinary research that goes beyond the conventional bounds of chemical engineering. Short reviews on hot topics, emerging technologies, and other areas of high interest should highlight unsolved challenges and provide clear directions for future research. The journal publishes periodically with approximately 6 volumes per year. Core topic areas: -Batch processing- Biotechnology- Circular economy and integration- Environmental engineering- Fluid flow and fluid mechanics- Green materials and processing- Heat and mass transfer- Innovation engineering- Life cycle analysis and optimisation- Modelling and simulation- Operations and supply chain management- Particle technology- Process dynamics, flexibility, and control- Process integration and design- Process intensification and optimisation- Process safety- Product development- Reaction engineering- Renewable energy- Separation processes- Smart industry, city, and agriculture- Sustainability- Systems engineering- Thermodynamic- Waste minimisation, processing and management- Water and wastewater engineering