期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2022

48

4

468-473

10.13331/j.cnki.jhau.2022.04.014

国家水体污染控制与治理科技重大专项（2014ZX07206001）；

本校为第一机构

设计 pH、Fe~0投加量、过硫酸盐（PS）投加量和四环素（TC）初始质量浓度对 TC 去除率影响的单因素试验，探索 Fe~0/PS 体系降解 TC 的最适条件；利用单因素试验的结果，采用伪一级动力学模型拟合得到 Fe~0/PS 体系降解TC 影响因素的反应级数；通过自由基淬灭试验，探究 Fe~0/PS 体系中自由基的种类；运用液相色谱–质谱探索 TC在 Fe~0/PS 体系中的降解产物和降解路径。结果表明：在 TC 初始质量浓度为 30 mg/L 时，选择 p H=3.0、PS 投加量为 2.0 mmol/L,Fe~0投加量为 1.00 mmol/L，温度为 25 ℃的条件，反应 45 min 后，TC 去除率达 94.11%;PS 投加量、Fe~0投加量和 TC 浓度的反应级数分别为 ...

A single-factor experiment was designed to investigate the effects of the pH,Fe0 dosage,persulfate(PS)dosage and tetracycline(TC)initial mass concentration on the TC removal rate to explore the optimum conditions for the Fe0/PS system to degrade TC.Using the results of single factor test and pseudo first-order kinetic model,the reaction order of the influencing factors of TC degradation in Fe0/PS system was obtained.The types of free radicals in Fe0/PS system were determined by free radical quenching test.The degradation products and pathways o...