Efficient treatment of old landfill leachate by peroxodisulfate assisted electro-oxidation and electro-coagulation combined system

被引：4
|
作者：
Ma D. [1 ]
Wang D. [2 ]
Wang X. [3 ]
Wang Q. [3 ]
Hu Y. [2 ,4 ]
机构：
[1] School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), Hubei, Wuhan
[2] School of Environmental Science and Engineering, Hubei Key Laboratory of Mine Environmental Pollution Control &Remediation, Hubei Polytechnic University, Hubei, Huangshi
[3] Nankong Environmental Energy Technology Research Institute Co., Ltd, Hubei, Qianjiang
[4] College of Life Sciences, Hubei Normal University, Huangshi
来源：
Chemosphere | 2024年 / 346卷
关键词：
Dual-anode; Electro-coagulation; Electro-oxidation; Old landfill leachate; Peroxodisulfate;
D O I：
10.1016/j.chemosphere.2023.140675
中图分类号：
学科分类号：
摘要：
Efficient removal of chemical oxygen demand (COD) and ammonium-N (NH4+-N) is the key issue for treatment of old landfill leachate. In this study, a peroxodisulfate assisted electro-oxidation and electro-coagulation coupled system (POCS) adopting Ti/SnO2–Sb2O3/TiO2 and Fe dual-anode was constructed for synergistic removal of COD and NH4+-N in old landfill leachate. Laboratory experiment results showed that with current density of 20 mA cm−2, initial pH value of 8.0 and peroxodisulfate (PDS) concentration of 60 mM, the POCS system can reach removal efficiencies of 84.2% for COD and 39.8% for NH4+-N. The POCS effectively reduced the complexity of macromolecular organics and avoided the need to add acid or base to adjust pH value. The residual NH4+-N could be effectively recovered through struvite precipitation with a 93.8% purity of the precipitate. © 2023 Elsevier Ltd
引用
收藏
相关论文
共 50 条
  • [21] Electro-coagulation treatment of raw and autoclaved landfill leachate with aluminum electrodes: case study of Djebel Chakir (Tunisia)
    Amjad Kallel
    Anis Attour
    Ismail Trabelsi
    Arabian Journal of Geosciences, 2017, 10
  • [22] Treatment of municipal solid wastes leachate by means of chemical- and electro-coagulation
    Veli, Sevil
    Oeztuerk, Tuba
    Dimoglo, Anatoly
    SEPARATION AND PURIFICATION TECHNOLOGY, 2008, 61 (01) : 82 - 88
  • [23] Landfill Leachate Treatment through Electro-Fenton Oxidation
    Mohajeri, S.
    Hamidi, A. A.
    Isa, M. H.
    Zahed, M. A.
    POLLUTION, 2019, 5 (01): : 199 - 209
  • [24] APPLICATION OF COMBINED CHEMICAL COAGULATION AND ELECTRO-COAGULATION PROCESS FOR CARWASH WASTEWATER TREATMENT
    Bazrafshan, Edris
    Mostafapoor, Ferdos Kord
    Soori, Mohammad Mahdi
    Mahvi, Amir Hossein
    FRESENIUS ENVIRONMENTAL BULLETIN, 2012, 21 (9A): : 2694 - 2701
  • [25] Degradation and Mineralization of Metformin by Electro-Oxidation on Ti/DSA (Ta2O5-Ir2O5) Anode and Combined Electro-Oxidation and Electro-Coagulation on Stainless Steel (SS) Anode
    Meena, Vinod Kumar
    Ghatak, Himadri Roy
    IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION, 2022, 41 (12): : 4048 - 4063
  • [26] Application of combined membrane biological reactor and electro-oxidation processes for the treatment of landfill leachates
    Aloui, Fathi
    Fki, Firas
    Loukil, Slim
    Sayadi, Sami
    WATER SCIENCE AND TECHNOLOGY, 2009, 60 (03) : 605 - 614
  • [27] Treatment of landfill leachate by combined electro-fenton oxidation and sequencing batch reactor method
    Lin, SH
    Chang, CC
    WATER RESEARCH, 2000, 34 (17) : 4243 - 4249
  • [28] Development of Combined Treatment of Electro-Coagulation and Flocculation for various types of Wastewater
    Matsuda, Satoshi
    Wada, Takahiro
    Suzuki, Akiko
    Suzuki, Toshinori
    INTER ACADEMIA 2010: GLOBAL RESEARCH AND EDUCATION, 2011, 222 : 293 - 296
  • [29] Evaluation of electro-oxidation of biologically treated landfill leachate using response surface methodology
    Zhang, Hui
    Ran, Xiaoni
    Wu, Xiaogang
    Zhang, Daobin
    JOURNAL OF HAZARDOUS MATERIALS, 2011, 188 (1-3) : 261 - 268
  • [30] Enhanced Purification and Disinfection of Restaurant Wastewater by Electro-coagulation Coupled with an Electro-oxidation Process: From Lab Scale to Field Scale
    Zhang, Junke
    Su, Peidong
    Zhu, Xu
    Mao, Ran
    Yuan, Liqiu
    Li, Angzhen
    Zhao, Xu
    ACS ES&T ENGINEERING, 2023, 3 (07): : 932 - 943
12345