甲醇添加量对苯酚测定精度及芬顿反应猝灭效果的影响  

Effect of Methanol Addition on Determination Precision of Phenol and Quenching of Fenton Reaction

作　　者：姜凤成 邱瑶 徐潇 赵曙光 徐亚慧 张传兵 Jiang Fengcheng;Qiu Yao;Xu Xiao;Zhao Shuguang;Xu Yahui;Zhang Chuanbing(School of Resources and Environment,Henan Polytechnic University,Henan,454003;Huaxia Besince Environmental Technology Co.,Ltd.,Henan,450008)

机构地区：[1]河南理工大学资源环境学院,河南454003 [2]华夏碧水环保科技股份有限公司,河南450008

出　　处：《当代化工研究》2024年第18期71-73,共3页Modern Chemical Research

基　　金：河南省重点研发与推广专项(科技攻关)项目“煤化工废水中典型含氮杂环类污染物处理关键技术研发”(项目编号:222102320102);中国博士后科学基金资助项目“半胱氨酸调控Fe(Ⅱ)/Na2S2O8对煤化工废水中有机物和重金属的同步去除效能与机理”(项目编号:2023M731170);河南省重点研发专项“污泥基类芬顿耦合臭氧催化氧化处理抗生素制药废水关键技术与装备研发”(项目编号:241111320400)。

摘　　要：芬顿氧化技术能有效去除水中苯酚,但过量添加芬顿反应猝灭剂甲醇会干扰苯酚浓度的准确测定。本研究建立了一种兼顾分光光度法测定苯酚的精度和芬顿反应猝灭效果的甲醇添加量确定方法,并进行了验证。结果显示,甲醇的加入会使苯酚测试值偏低,当甲醇与水的比例不超过2%时,其对苯酚测试的影响可以忽略;当比例为2%时,芬顿反应对苯酚的降解率仅为3.82%,且在反应的不同时间点添加2%甲醇后,苯酚降解将停止,表明良好的猝灭效果。因此,甲醇猝灭剂的添加量可以定为2%。本研究可为芬顿反应猝灭剂合适用量的选择提供有价值的指导。The Fenton oxidation technology effectively removes phenol from water,but excessive methanol used as a quenching agent can affect phenol concentration measurements.This study developed and validated a method to determine the optimal methanol amount,balancing accurate spectrophotometric phenol measurement with the quenching effect.Findings show that the addition of methanol can result in lower phenol test values,and when the ratio of methanol to aqueous solution does not exceed 2%,its effect on phenol testing is negligible.At a 2% methanol ratio,phenol degradation in the Fenton reaction was only 3.82%,and this ratio effectively terminates phenol degradation,indicating a strong quenching effect.Thus,a 2% methanol ratio is recommended as a quenching agent,providing guidance for selecting the appropriate dosage in Fenton reactions.

关 键 词：猝灭剂 苯酚 甲醇 高级氧化 

分 类 号：X703[环境科学与工程—环境工程]