Recent advances in photo-activated sulfate radical-advanced oxidation process (SR-AOP) for refractory organic pollutants removal in water

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2019-12-15 DOI:10.1016/j.cej.2019.122149

Qi Yang , Yinghao Ma , Fei Chen , Fubing Yao , Jian Sun , Shana Wang , Kaixin Yi , Lihua Hou , Xiaoming Li , Dongbo Wang

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引用次数: 330

Abstract

In recent decades, a growing number of refractory organic pollutants with serious health risks are frequently detected in aquatic environment. Sulfate radical (SO₄⁻)-based advanced oxidation process (SR-AOP) under light irradiation (ultraviolet (UV) light, visible light or simulated solar light) is considered as a prospective method for refractory organic pollutants degradation. The satisfactory removal depends on the generation of active radicals SO₄⁻ as well as OH from the activation of persulfate (PS) and peroxymonosulfate (PMS). In this paper, different methods of PS/PMS photo-activation, including catalyst-free, metal catalyst and metal-free catalyst activation, under different light sources as well as their activation mechanisms are reviewed comprehensively. The effects of key parameters are commendably assessed, such as PS/PMS concentration, catalyst dosage, initial contaminant concentration, pH, and coexisting organic or inorganic matters. This study will help to deeply understand the photo-activated SR-AOP for the refractory organic pollutants removal and present better perspectives for future researches.

Abstract Image

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光活化硫酸盐自由基-深度氧化法(SR-AOP)去除水中难降解有机污染物研究进展

近几十年来，在水生环境中频繁发现越来越多具有严重健康风险的难降解有机污染物。在紫外光、可见光或模拟太阳光照下，基于硫酸根(SO4−)的高级氧化工艺(SR-AOP)被认为是一种有前景的降解难降解有机污染物的方法。令人满意的脱除取决于活化过硫酸盐(PS)和过氧单硫酸盐(PMS)产生的活性自由基SO4−和OH。本文综述了PS/PMS在不同光源下的光活化方法，包括无催化剂、金属催化剂和无金属催化剂活化，以及它们的活化机理。关键参数的影响得到了很好的评估，如PS/PMS浓度、催化剂用量、初始污染物浓度、pH值和共存的有机或无机物。该研究有助于深入了解光活化SR-AOP对难降解有机污染物的去除，为今后的研究提供更好的前景。

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 Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.