过氧乙酸高级氧化技术机理及影响因素研究进展

doi:10.19965/j.cnki.iwt.2022-0201

摘要/Abstract

摘要：

过氧乙酸高级氧化技术（PAA-AOPs）能原位产生羟基（·OH）、有机自由基（R—C·）、超氧自由基（·O₂^-）和单线态氧（¹O₂）等高活性物质，可提高有机污染物的可生化性，甚至使其完全矿化。与传统水处理技术相比，PAA-AOPs具有操作简单、成本低和毒副产物少等优势，潜力巨大。对PAA-AOPs的反应机理、研究现状、特有性质和主要影响因素进行了全面分析。首先综述了光照、过渡金属和碳质材料等方式活化PAA的机理，并分析对比了三种活化方式的优缺点，然后对PAA-AOPs降解有机污染物过程中的优势活性物质、易反应结构和主要反应路径进行了总结；其次根据PAA-AOPs的工艺特点，系统阐述了pH、PAA浓度、Cl^-、CO₃^2-、NO₃^-和天然有机质（NOM）等因素对PAA-AOPs降解有机污染物的影响，并对其中的深层次机理进行了概述；最后在此基础上对该技术未来的研究方向进行了展望。

关键词: 过氧乙酸, 高级氧化, 活化机理, 降解机理, 有机污染物, 影响因素

Abstract:

Advanced oxidation processes with peracetic acid（PAA-AOPs） can produce high active substance such as hydroxide radical（·OH），organic radical（R—C·），superoxide radical（·O₂^-） and singlet oxygen（¹O₂） in situ，which can improve the biodegradability of organic pollutants and even completely mineralize them. Compared with traditional water treatment technologies，PAA-AOPs has the advantages of simple operation，low cost as well as less toxicity and by-products and has great potential. In this review，the reaction mechanism，specific properties and main influencing factors of PAA-AOPs were comprehensively analyzed. The mechanisms of activation of PAA by light，transition metal and carbonaceous material was firstly reviewed，and then the advantages and disadvantages of the three activation methods were analyzed and compared. Next，the dominant active substances，easy reaction structures and main reaction pathways in the degradation of organic pollutants by PAA-AOPs was summarized. Furthermore，the effects of pH，PAA concentration，Cl^-，CO₃^2-，NO₃^- and natural organic matter（NOM） on PAA-AOPs degradation of organic pollutants according to the process characteristics of PAA-AOPs were systematically described and the underlying mechanism was summarized. Finally，on this basis，we provide some future perspectives on the research direction of PAA-AOPs.

Key words: peracetic acid, advanced oxidation, activation principle, degradation principle, organic pollutant, influencing factor

中图分类号:

X703

代朝猛,贾辰炎,胡佳俊,刘曙光,张亚雷,游学极. 过氧乙酸高级氧化技术机理及影响因素研究进展[J]. 工业水处理, 2023, 43(1): 1-9.

Chaomeng DAI,Chenyan JIA,Jiajun HU,Shuguang LIU,Yalei ZHANG,Xueji YOU. Research progress on mechanism and influencing factors of advanced oxidation technology with peracetic acid[J]. Industrial Water Treatment, 2023, 43(1): 1-9.

https://www.iwt.cn/CN/Y2023/V43/I1/1

图/表 7

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活化方式	优点	缺点
光照^{〔11，24-26〕}	毒副产物少、不易造成二次污染	能耗大、成本高、对废水色度及污染物种类有要求、适用污染物种类少、不适用于地下水等环境，适用场景要求严格
过渡金属^〔6，8〕	操作简单、适用污染物种类多、反应效率快、污染物去除效果好	pH局限性大、适用场景要求严格、有毒副产物、易造成过渡金属浸出等二次污染
碳质材料^〔22-23〕	操作简单、原材料来源广泛，成本低、适用污染物种类多、pH适用范围广、适用场景要求宽松、毒副产物少、不易造成二次污染	相比于过渡金属非均相催化剂，回用效果差，可循环使用次数少

活化方式	优点	缺点
光照^{〔11，24-26〕}	毒副产物少、不易造成二次污染	能耗大、成本高、对废水色度及污染物种类有要求、适用污染物种类少、不适用于地下水等环境，适用场景要求严格
过渡金属^〔6，8〕	操作简单、适用污染物种类多、反应效率快、污染物去除效果好	pH局限性大、适用场景要求严格、有毒副产物、易造成过渡金属浸出等二次污染
碳质材料^〔22-23〕	操作简单、原材料来源广泛，成本低、适用污染物种类多、pH适用范围广、适用场景要求宽松、毒副产物少、不易造成二次污染	相比于过渡金属非均相催化剂，回用效果差，可循环使用次数少

活化方式	体系	有机污染物	优势活性物质种类	去除率/%
光照	UV/PAA^〔11〕	NAP	·OH和R—C·	94
	UV/PAA^〔24〕	氯酚同类物质	·OH	100
	UV/PAA^〔25〕	双氯芬酸（DCF）	·OH和R—C·	80
过渡金属	Co（Ⅱ）/PAA^〔4〕	SMX	CH₃COO·和CH₃COOO·	89.4
	Co（Ⅱ）/PAA^〔8〕	BPA	CH₃COOO·	100
	Co（Ⅱ）/PAA^〔8〕	NAP	CH₃COOO·	100
	Co（Ⅱ）/PAA^〔8〕	SMX	CH₃COOO·	98.5
	Fe（Ⅱ）/PAA^〔6〕	MBA	·OH、R—C·和Fe（Ⅳ）	90
	Mn（Ⅱ）/PAA^〔16〕	橙黄Ⅱ	·OH和CH₃COOO·	100
碳质材料	ACFs/PAA^〔22〕	活性艳红X-3B	R—C·和·OH	97
	N-Rgo/PAA^〔29〕	SMX	CH₃COO·和CH₃COOO·	96
	碳纳米管/PAA^〔23〕	金橙G	·OH	90

活化方式	体系	有机污染物	优势活性物质种类	去除率/%
光照	UV/PAA^〔11〕	NAP	·OH和R—C·	94
	UV/PAA^〔24〕	氯酚同类物质	·OH	100
	UV/PAA^〔25〕	双氯芬酸（DCF）	·OH和R—C·	80
过渡金属	Co（Ⅱ）/PAA^〔4〕	SMX	CH₃COO·和CH₃COOO·	89.4
	Co（Ⅱ）/PAA^〔8〕	BPA	CH₃COOO·	100
	Co（Ⅱ）/PAA^〔8〕	NAP	CH₃COOO·	100
	Co（Ⅱ）/PAA^〔8〕	SMX	CH₃COOO·	98.5
	Fe（Ⅱ）/PAA^〔6〕	MBA	·OH、R—C·和Fe（Ⅳ）	90
	Mn（Ⅱ）/PAA^〔16〕	橙黄Ⅱ	·OH和CH₃COOO·	100
碳质材料	ACFs/PAA^〔22〕	活性艳红X-3B	R—C·和·OH	97
	N-Rgo/PAA^〔29〕	SMX	CH₃COO·和CH₃COOO·	96
	碳纳米管/PAA^〔23〕	金橙G	·OH	90

活化方式	体系	有机污染物	pH范围	最佳pH	反应时间/min	去除率/%
光照	UV/PAA^〔11〕	NAP	5.09~9.65	5.09	120	94
	UV/PAA^〔35〕	4-CP	4~9.5	9.5	18	90
	UV/PAA^〔25〕	DCF	3~11	8.5	15	80
过渡金属	Co（Ⅱ）/PAA^〔4〕	SMX	3~11	7	15	89.4
	Co（Ⅱ）/PAA^〔27〕	AO7	3~9	7	60	92
	Fe（Ⅱ）/PAA^〔9〕	DCF	5~9	5	60	80
	Fe（Ⅱ）/PAA^〔6〕	NAP	3~7.1	3	120	98.2
	Mn（Ⅱ）/PAA^〔16〕	橙黄Ⅱ	7.0~12.6	9.5	5	100
碳质材料	ACFs/PAA^〔22〕	活性艳红X-3B	3~11	7	45	97

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