HOUShujie,RUANJiaxin,JIALifei,et al.Membrane Capacitive Deionization Coupled PMS for Simultaneous Removal of Salt and Tetracycline[J].China Water & Wastewater,2026,42(5):18-25.
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Membrane Capacitive Deionization Coupled PMS for Simultaneous Removal of Salt and Tetracycline

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第42卷 Number: 第5期 Page: 18-25 Column: Date of publication: 2026-03-01
Author(s):
HOU　Shujie1;  RUAN　Jiaxin2;  JIA　Lifei1;  KONG　Weijing3;  CHEN　Sijia1;  DOU　Kebin1;  LI　Peilian4;  WANG　Yingying5;  HOU　Liefeng6
（1. Xingtai Ecological Environment Monitoring Center， Xingtai 054001， China； 2. Shandong Provincial Marine Ecological Environment Monitoring and Emergency Response Center， Yantai 264003， China； 3. Chinese Research Academy of Environmental Sciences， Beijing 100012，China； 4. Xingtai Weixian Environmental Monitoring Center， Xingtai 054700， China； 5. Hebei Xingtai Ecological Environment Monitoring Center， Xingtai 054000， China； 6. Xingtai Municipal Ecological Environment Science Research Institute， Xingtai 054001， China）
Keywords:
membrane capacitive deionization;  peroxymonosulfate (PMS);  ball?milled activated carbon;  salt removal;  tetracycline
Abstract:
Tetracycline (TC), as a broad?spectrum antibiotic, poses persistent hazards to the environment due to its poor degradability, and its removal has become a key issue in the environmental field. However, TC wastewater is often accompanied by the presence of a large number of salt ions. Therefore, the simultaneous removal of TC and salts is crucial for maintaining the reuse of industrial water. In this study, ball-milled activated carbon was used as the electrode material for a membrane capacitive deionization (MCDI) device, and peroxymonosulfate (PMS) was used as the oxidant to construct a MCDI coupled with PMS system for the simultaneous desalination during the degradation of TC. The coupled system showed good stability under continuous operation conditions, and the removal rate of TC by electro-activated PMS could be increased by 22.8%. The effects of factors such as ball-milled time, applied voltage, and PMS addition time on the removal performance of TC and NaCl were investigated. The results showed that when the ball-milled time was 10 h, the applied voltage was 1.2 V, and the PMS addition time was 0 min, the removal performance of NaCl and TC was the best, with the salt and TC removal efficiencies reaching 61.05% and 26.61%, respectively, and the desalination amount and TC removal amount reaching 6.38 μmol/J and 0.029 μmol/J, respectively.
Last Update: 2026-03-01