电催化臭氧技术降解啶虫脒

马永双; 展巨宏; 王会姣; 王玉珏

doi:10.13205/j.hjgc.202112016

电催化臭氧技术降解啶虫脒

doi: 10.13205/j.hjgc.202112016

1. 清华大学环境学院, 北京 100084;
2. 苏州普滤得净化股份有限公司, 江苏苏州 215129;
3. 清华苏州环境创新研究院, 江苏苏州 215163;
4. 中国矿业大学(北京)化学与环境工程学院, 北京 100083

基金项目:

国家水体污染控制与治理科技重大专项(2017ZX07202-001)。

详细信息

作者简介:
马永双(1996-),男,硕士,主要研究方向为电化学高级氧化技术。mys18@mails.tsinghua.edu.cn

通讯作者:
王玉珏(1975-),男,副教授,主要研究方向为水处理技术研究。wangyujue@tsinghua.edu.cn

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- 文章访问数: 134
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- 被引次数: 0
出版历程
- 收稿日期: 2020-12-30
- 网络出版日期: 2022-03-30
- 刊出日期: 2022-03-30

STUDY ON ABATEMENT OF ACETAMIPRID BY ELECTRO-PEROXONE PROCESS

1. School of Environment, Tsinghua University, Beijing 100084, China;
2. Suzhou Purification Equipment Co., Ltd, Suzhou 215129, China;
3. Research Institute for Environmental Innovation (Suzhou), Tsinghua University, Suzhou 215163, China;
4. School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China

摘要

摘要: 研究了臭氧氧化、紫外/臭氧(UV/O₃)和电催化臭氧(electro-peroxone, EP)3种技术降解啶虫脒的机制,比较了3种技术降解地下水和地表水中啶虫脒的效率和能耗(使用E_EO指标表征)。发现啶虫脒为臭氧难氧化物质,与臭氧(O₃)和羟基自由基(·OH)的二级反应速率常数分别为(0.05±0.01) mol/(L·s)、(2.8±0.2)×10⁹ mol/(L·s)。经6 min臭氧氧化后,地下水和地表水中的啶虫脒去除率仅为26%和64%。与之相比,UV/O₃和EP技术可以完全去除地下水和地表水中的啶虫脒。臭氧氧化、UV/O₃和EP技术降解啶虫脒的能耗分别为0.11~0.27,1.22~1.24,0.12~0.24 kW·h/m³。结果表明,EP技术是一种去除饮用水中啶虫脒的高效低耗技术。
- electro-peroxone /
- 臭氧 /
- 紫外光 /
- 啶虫脒
Abstract: The abatement kinetics and mechanism of acetamiprid were studied by ozonation, ultraviolet/ozone(UV/O₃), and electro-peroxone(EP) in the groundwater and surface water. The electrical energy demands per order removal(E_EO) of acetamiprid abatement by these processes were compared in two real water matrices. The second-order rate constants for the reaction of acetamiprid with ozone and hydroxyl radical(·OH) at pH of 7 were determined to be(0.05±0.01) mol/(L·s) and(2.8±0.2)×10⁹ mol/(L·s), respectively. After 6 min ozone oxidation, the removal rates of acetamiprid in groundwater and surface water were only 26% and 64%. In contrast, UV/O₃ and EP technology can completely remove acetamiprid from groundwater and surface water. The energy demands for 90% removal efficiency of acetamiprid were 0.11~0.27, 1.22~1.24, and 0.12~0.24 kW·h/m³ for ozonation, UV/O₃, and EP processes, respectively. The results showed that the EP process was an energy-efficient alternative for the abatement of acetamiprid in water treatment.
- electro-peroxone /
- ozone /
- ultraviolet /
- acetamiprid

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