活化过硫酸盐高级氧化技术降解硝基苯类化合物及其影响因素分析  

Activated persulfate-based advanced oxidation technology for degradation of nitrobenzene compounds and analysis of influencing factors

作　　者：王建辉[1] 孙汝祺 刘佳杰 李明东 朱星宇 WANG Jian-hui;SUN Ru-qi;LIU Jia-jie;LI Ming-dong;ZHU Xing-yu(College of Municipal and Environmental Engineering,Jilin Jianzhu University,Changchun 130018,China)

机构地区：[1]吉林建筑大学市政与环境工程学院,吉林长春130018

出　　处：《吉林师范大学学报(自然科学版)》2025年第2期95-100,共6页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(51678272)。

摘　　要：硝基苯类化合物因其高毒性与难降解特性,对生态环境及生物健康构成严重威胁,开发高效经济的降解技术已成为研究热点.本文基于国内外研究进展,系统探讨过硫酸盐高级氧化技术对硝基苯类化合物的降解机制及关键影响因素,以期为实际应用提供理论支撑.结果表明,活化过硫酸盐技术对硝基苯类化合物降解效果显著,降解率可达75%以上;其中废水pH对反应效率影响显著,废水pH=3时降解率最高(97%),碱性条件下效率下降.过硫酸盐浓度存在阈值效应,2 mmol/L时降解效果最优,浓度过高则抑制反应;Fe^(2+)活化剂浓度达2 mmol/L时降解率达峰值,而Cl-等共存阴离子对反应具有明显抑制作用,其中Cl^(-)抑制作用最强,其余含氧阴离子次之.Nitrobenzene compounds,characterized by their high toxicity and recalcitrant nature,pose significant threats to ecological systems and biological health,rendering the development of efficient and cost-effective degradation technologies a research priority.Based on the recent advances in domestic and international research,this study systematically investigates the degradation mechanisms and critical influencing factors of persulfate-based advanced oxidation processes for nitrobenzene compounds,aiming to provide theoretical foundations for practical applications.The results demonstrate that activated persulfate technology achieves remarkable degradation efficiency for nitrobenzene compounds,with removal rates exceeding 75%.Notably,wastewater pH exerts a pronounced influence on reaction efficiency,with optimal degradation(97%)observed at pH 3,while alkaline conditions substantially reduce performance.A threshold effect is identified for persulfate concentration,where 2 mmol/L delivers optimal degradation,whereas excessive concentrations inhibit the process.The Fe^(2+)activator concentration reaches peak efficacy at 2 mmol/L.Co-existing anions,particularly Cl^(-),exhibit significant inhibitory effects,with chloride demonstrating the strongest suppression followed by oxyanions.

关 键 词：硝基苯类化合物 高级氧化 过硫酸盐 

分 类 号：X131[环境科学与工程—环境科学]