Article
Environmental Sciences
Tao Xu, Xiting Tang, Meiting Qiu, Xiaoliu Lv, Yang Shi, Yihui Zhou, Yanfei Xie, Mu. Naushad, Su Shiung Lam, Hui Suan Ng, Christian Sonne, Shengbo Ge
Summary: This study proposes a novel boron-doped diamond (BDD) pulse electrochemical oxidation (PEO) technology for efficient removal of levofloxacin (LFXN) from wastewater. The effects of current density, initial pH, frequency, electrolyte types, and initial concentration on the degradation of LFXN were investigated. The study also suggests a possible degradation mechanism of LFXN using Density functional theory calculation and analysis of degradation intermediates. The results show that the proposed method achieved high COD removal efficiency and energy consumption, and provides a promising approach for efficiently treating LFXN antibiotic wastewater without the need for adding H2O2.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Siming Lei, Yonghui Song
Summary: The electrochemical treatment of wastewater using 2D and 3D systems showed that the applied voltage and main electrode material significantly affected the removal of ions. The 3D system, with granular activated carbon as the particle electrode and carbon-filled stainless mesh and coal-based electrodes as the main electrodes, demonstrated superior treatment effects compared to the 2D system.
FRONTIERS IN CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Chengyu Zhang, Zhisheng Yu, Xiangyang Wang
Summary: This study reviews the research progress of electrochemical oxidation technology (EOT) for the treatment of medical wastewater, including the exploration of reaction mechanism, the preparation of functional electrode materials, combining multiple technologies, and the design of high-efficiency reactors. The conclusion and outlook of EOT for medical wastewater treatment were proposed. The review aims to provide prospects and guidance for EOT in treating medical wastewater.
FRONTIERS IN CHEMISTRY
(2022)
Article
Environmental Sciences
Shuming Xie, Mei Li, Yexin Liao, Qin Qin, Shouxiang Sun, Yunhong Tan
Summary: A biochar-loaded particle electrode was prepared using an in-situ method for effectively degrading 4-chlorophenol in wastewater. The supported biomass carbon particle electrode showed significantly higher degradation efficiency compared to the unsupported one. Different loading and concentration of biomass carbon particle electrodes greatly influenced the electrochemical degradation of 4-chlorophenol, with Mn/AC > Sn/AC > Sb/AC showing the best removal efficiencies.
Article
Environmental Sciences
Sonal Rajoria, Manish Vashishtha, Vikas K. Sangal
Summary: A GO/TiO2 electrode was prepared by depositing graphene oxide (GO) on a titania plate through a simple anodization method. The morphology and structure of the TiO2 and GO/TiO2 electrodes were characterized using various techniques. The results showed that GO nanoparticles were successfully formed on the TiO2 substrate, with a thickness of approximately 300 nm. The synthesized GO/TiO2 nanotube electrode exhibited a bandgap of 3.052 eV. The effect of pH, current, and degradation time on the COD degradation and energy consumed was investigated using response surface methodology. At optimized parameters, a COD degradation of 57.61% and energy consumption of 15.00 kWh/m(3) were achieved. The electroplating effluents degradation mechanism was found to involve center dot OH radicals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Jinsong Ma, Xiaona Wang, Haishu Sun, Weiqi Tang, Qunhui Wang
Summary: The potential genotoxicity and non-biodegradability of antibiotics in natural water bodies pose a threat to the survival of various organisms and cause severe environmental pollution. Three-dimensional (3D) electrochemical technology has emerged as a promising approach for antibiotic wastewater treatment. This review provides a comprehensive investigation of the use of 3D electrochemical technology in treating antibiotic wastewater, including reactor structure, electrode materials, operating parameters, reaction mechanism, and combination with other technologies. The selection of electrode materials, especially particle electrodes, significantly affects the treatment efficiency. Operating parameters such as cell voltage, solution pH, and electrolyte concentration play a crucial role. Combining 3D electrochemical technology with membrane and biological technologies effectively enhances antibiotic removal and mineralization efficiency. In conclusion, 3D electrochemical technology shows great potential for antibiotic wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Chemical
Motasem Y. D. Alazaiza, Ahmed Albahnasawi, Murat Eyvaz, Dia Eddin Nassani, Salem S. Abu Amr, Mohammed Shadi S. Abujazar, Omar Al-Maskari
Summary: Healthcare facility wastewater significantly increases the levels of micropollutants in municipal wastewater. Electrochemical advanced oxidation (EAO) is considered a promising technology for treating pharmaceutical-contaminated wastewater. However, most current research focuses on artificially prepared single-component wastewater, while actual healthcare facility wastewater is more complex.
DESALINATION AND WATER TREATMENT
(2023)
Review
Engineering, Chemical
Meudjeu Tognia, Guoqing Feng, Zonglin Pan, Xinfei Fan, Mbatchou Nonga Stephane, Chengwen Song, Tonghua Wang
Summary: This paper summarizes the role of modeling and simulations in the design of membrane-electrodes combined with electrocatalytic oxidation processes for the treatment of organic polluted water. It briefly discusses parameters such as electrode materials, the geometrical construction of the porous layer, electrode-electrolyte interactions, voltammogram, electrochemical impedance spectroscopy, catalysts coating, and electrocatalytic degradation of pollutants. The study also includes examples of modeling and simulation in real applications of electrocatalytic oxidation processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yu Hu, Li Zhou, Jia Zhu, Jingsi Gao
Summary: This study investigated the removal of polyamide microplastics from wastewater using electrocoagulation. The combination of iron anode and aluminum cathode (Fe-Al) exhibited the highest removal efficiency. The removal efficiency of microplastics increased with higher applied voltage and electrolyte concentration. The optimized conditions for polyamide removal were using Fe-Al electrodes, with a plate spacing of 2.5 cm, an applied voltage of 10 V, an initial pH of 7, and an electrolyte concentration of 0.02 mol/L. This study highlights the potential of electrocoagulation for microplastics removal and provides insights for operational parameter optimization.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Voravich Ganthavee, Antoine P. Trzcinski
Summary: This article discusses pharmaceutical contaminants and their risks to human health and the environment. It introduces the applications of adsorption and electrochemical oxidation technology in treating pharmaceutical wastewater, highlighting their effectiveness in removing non-biodegradable pharmaceutical pollutants and improving the techno-economic feasibility and environmental viability of industrial-scale treatment processes.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Review
Environmental Sciences
Jinsong Ma, Ming Gao, Huimin Shi, Jin Ni, Yuansheng Xu, Qunhui Wang
Summary: This paper comprehensively reviews the research and development of particle electrodes in 3D electrochemical reactors for wastewater treatment. The roles of particle electrodes in the 3D electrochemical treatment of wastewater are thoroughly investigated and systematized, and different types of particle electrodes are classified and evaluated.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Dan Guo, Yongbo Guo, Yixuan Huang, Yongyang Chen, Xiaochun Dong, Hao Chen, Shanping Li
Summary: This study investigated the electrochemical degradation of clothianidin in aqueous solution using a Ti/Sb-SnO2 electrode co-doped with graphene and europium. The Ti/Sb-SnO2-Eu&rGO electrode showed the highest efficiency and removal rate among the electrodes tested. Factors such as initial pH, electrolyte concentration, and current density were found to influence the degradation process. The study provides insights into the possible degradation pathway and offers a new method for clothianidin wastewater pollution control.
Article
Biotechnology & Applied Microbiology
Yuvaraj Ravikumar, Sirajunnisa Abdul Razack, Junhua Yun, Guoyan Zhang, Hossain M. Zabed, Xianghui Qi
Summary: The growing trend in consumption and production of food products from brewing industries has led to an increased waste discharge of contaminants into the environment. Microalgae-based bioremediation has gained significant importance in wastewater treatment, but its potential value in distillery wastewater treatment still needs to be fully exploited. Research work explores the roles of bacteria and fungi in treating organic compounds in distillery wastewater, and emphasizes strategies for phycoremediation in distillery wastewater, as well as introducing microbial fuel cells and genetically engineered microalgae for future prospect.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Environmental
Maocai Shen, Yaxing Zhang, Eydhah Almatrafi, Tong Hu, Chengyun Zhou, Biao Song, Zhuotong Zeng, Guangming Zeng
Summary: This study investigated the removal performance, mechanism, and influencing factors of microplastics in wastewater treatment by electrocoagulation (EC). It was found that aluminum anode EC is an effective method to remove microplastics with a removal rate above 80%. The efficiency of microplastic removal by EC is influenced by electrolyte concentration and applied voltage density, with flocculation and charge neutralization occurring simultaneously during the process.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Physical
Jose de Jesus Trevino-Resendez, Alejandro Medel, Yunny Meas
Summary: This review focuses on recent developments in electrochemical technology (with special emphasis on electrocoagulation, electro-oxidation, and electro-Fenton) to treat petroleum industry effluents, including offshore and hydraulic fracturing extraction, as well as refinery effluents. Additionally, an overview is given of the challenges these processes face in becoming consolidated technologies.
CURRENT OPINION IN ELECTROCHEMISTRY
(2021)
