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张大超, 吴梦, 陈敏, 邓晓裕, 王春英. VUV/O3降解选矿废水残留药剂实验探究[J]. 环境化学, 2019, (7): 1675-1681. doi: 10.7524/j.issn.0254-6108.2018091305
引用本文: 张大超, 吴梦, 陈敏, 邓晓裕, 王春英. VUV/O3降解选矿废水残留药剂实验探究[J]. 环境化学, 2019, (7): 1675-1681. doi: 10.7524/j.issn.0254-6108.2018091305
shu
ZHANG Dachao, WU Meng, CHEN Min, DENG Xiaoyu, WANG Chunying. Degradation of residual medicament of mineral processing wastewater by VUV/O3[J]. Environmental Chemistry, 2019, (7): 1675-1681. doi: 10.7524/j.issn.0254-6108.2018091305
Citation: ZHANG Dachao, WU Meng, CHEN Min, DENG Xiaoyu, WANG Chunying. Degradation of residual medicament of mineral processing wastewater by VUV/O3[J]. Environmental Chemistry, 2019, (7): 1675-1681. doi: 10.7524/j.issn.0254-6108.2018091305
shu

VUV/O3降解选矿废水残留药剂实验探究

  • 1. 江西理工大学资源与环境工程学院, 赣州, 341000;

  • 2. 江西省矿冶环境污染控制重点实验室, 赣州, 341000

    • 通讯作者: 张大超, E-mail: tel:13766377328 ; 
  • 基金项目:

    博士后科学基金（2015M582776XE，2016T90967）赞助.

Degradation of residual medicament of mineral processing wastewater by VUV/O3

  • 1. School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China;

  • 2. Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, Ganzhou, 341000, China

    • Corresponding author: ZHANG Dachao, tel:13766377328 ; 
  • Fund Project: Supported by Postdoctoral Science Foundation Project(2015M582776XE,2016T90967).

  • 摘要: 以选矿废水残留药剂降解为研究目标，本文对VUV/O3（vacuum ultraviolet，VUV，真空紫外）降解松醇油进行了实验研究，考察了废水初始pH值、O3浓度、污染物初始浓度、反应时间、共存阴阳离子等因素对VUV/O3降解松醇油效果的影响，并得到最佳实验条件.实验表明，在VUV光源功率15 W、O3浓度为6 g·h-1、废水初始pH 8.0的条件下，VUV/O3对松醇油的降解效果最好，反应时间15 min，降解率就能达到99.99%；SiO32-、CO32-、Cl-、SO42-、Na+、Ca2+等6种共存离子对VUV/O3去除松醇油的效果均起抑制作用，其影响作用大小顺序为：CO32- > Ca2+ > SiO32- > SO42- > Cl-（Na+）.VUV/O3在降解松醇油的过程中，反应20 min后，溶液TOC的降解率达到平衡，为70.88%，而松醇油的降解率为99.14%；通过添加叔丁醇抑制剂对降解过程进行活性机理分析，认为·OH在VUV/O3降解松醇油过程中起主要作用.
    Abstract: In this paper, the degradation of pine oil by VUV/O3 (vacuum ultraviolet, VUV, vacuum ultraviolet) was studied. The influence of the initial pH value, O3 concentration, initial concentration of pollutants, reaction time and coexisting ions on VUV/O3 degradation of pine oil was investigated, and the optimum experimental conditions were obtained.The experiments showed that VUV/O3 has the best degradation effect on pine oil with the degradation rate of 99.99% under the conditions of VUV light source was 15W, O3 concentration was 6 g·h-1, initial pH 8, and the reaction time was 15 min. Six kinds of coexisting ions, such as SiO32-, CO32-, Cl-, SO42-, Na+ and Ca2+, inhibited the effect of VUV/O3 on the removal of pine oil. The order of effect was CO32- > Ca2+ > SiO32- > SO42- > Cl-(Na+). In the process of VUV/O3 degradation of pine oil, the degradation rate of TOC reached a balance of 70.88% in the solution and of the pine oil was 99.14% after the reaction time of 20 min. The activity mechanism of the degradation process was analyzed by adding t-BuOH inhibitors. It was considered that ·OH played a major role in the process of VUV/O3 degradation of pine oil.
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  • 收稿日期:  2018-09-13
张大超, 吴梦, 陈敏, 邓晓裕, 王春英. VUV/O3降解选矿废水残留药剂实验探究[J]. 环境化学, 2019, (7): 1675-1681. doi: 10.7524/j.issn.0254-6108.2018091305
引用本文: 张大超, 吴梦, 陈敏, 邓晓裕, 王春英. VUV/O3降解选矿废水残留药剂实验探究[J]. 环境化学, 2019, (7): 1675-1681. doi: 10.7524/j.issn.0254-6108.2018091305
shu
ZHANG Dachao, WU Meng, CHEN Min, DENG Xiaoyu, WANG Chunying. Degradation of residual medicament of mineral processing wastewater by VUV/O3[J]. Environmental Chemistry, 2019, (7): 1675-1681. doi: 10.7524/j.issn.0254-6108.2018091305
Citation: ZHANG Dachao, WU Meng, CHEN Min, DENG Xiaoyu, WANG Chunying. Degradation of residual medicament of mineral processing wastewater by VUV/O3[J]. Environmental Chemistry, 2019, (7): 1675-1681. doi: 10.7524/j.issn.0254-6108.2018091305
shu

VUV/O3降解选矿废水残留药剂实验探究

    通讯作者: 张大超, E-mail: tel:13766377328 ; 
  • 1. 江西理工大学资源与环境工程学院, 赣州, 341000;
  • 2. 江西省矿冶环境污染控制重点实验室, 赣州, 341000
  • 收稿日期:  2018-09-13
基金项目:

博士后科学基金（2015M582776XE，2016T90967）赞助.

摘要: 以选矿废水残留药剂降解为研究目标，本文对VUV/O3（vacuum ultraviolet，VUV，真空紫外）降解松醇油进行了实验研究，考察了废水初始pH值、O3浓度、污染物初始浓度、反应时间、共存阴阳离子等因素对VUV/O3降解松醇油效果的影响，并得到最佳实验条件.实验表明，在VUV光源功率15 W、O3浓度为6 g·h-1、废水初始pH 8.0的条件下，VUV/O3对松醇油的降解效果最好，反应时间15 min，降解率就能达到99.99%；SiO32-、CO32-、Cl-、SO42-、Na+、Ca2+等6种共存离子对VUV/O3去除松醇油的效果均起抑制作用，其影响作用大小顺序为：CO32- > Ca2+ > SiO32- > SO42- > Cl-（Na+）.VUV/O3在降解松醇油的过程中，反应20 min后，溶液TOC的降解率达到平衡，为70.88%，而松醇油的降解率为99.14%；通过添加叔丁醇抑制剂对降解过程进行活性机理分析，认为·OH在VUV/O3降解松醇油过程中起主要作用.

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