Author
Yanchao Jin
Other affiliations: Tianjin University
Bio: Yanchao Jin is an academic researcher from Fujian Normal University. The author has contributed to research in topics: Chemistry & Electrodialysis. The author has an hindex of 9, co-authored 18 publications receiving 179 citations. Previous affiliations of Yanchao Jin include Tianjin University.
Topics: Chemistry, Electrodialysis, Photovoltaic system, Medicine, Wastewater
Papers
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TL;DR: The experimental results indicate that the proposed system equipped with a 'back-to-back' soil compartment equipped system has the potential to be an effective technique for the treatment of soil contaminated with heavy metals.
Abstract: In this study, a modified bipolar membrane electrodialysis system equipped with a ‘back-to-back’ soil compartment was fabricated for simultaneous removal of trivalent chromium (Cr(III)) and hexaval...
53 citations
TL;DR: In this article, a bipolar membrane electrodialysis (BMED) system was studied for treatment of this challenging stream because in which salts can be converted into their corresponding acids and bases, which enables resource recovery in raffinate.
43 citations
TL;DR: In this article, the authors investigated the influence of current, temperature, bacterial load, humic acid (HA), and bicarbonate on the performance of solar water disinfection.
Abstract: In this study, the solar water disinfection (SODIS) process was enhanced by in situ generated H2O2, and the influences of current, temperature, bacterial load, humic acid (HA), and bicarbonate were investigated. The results revealed that 1.29 kJ/L of electricity consumption reduced the treatment time by 40 % and decreased the required solar energy from 235.95–141.58 kJ/L. 1O2 was the main reactive oxygen species (ROS), which played an important role. Increasing the current from 15 to 25 mA improved the cumulative H2O2 production, but it had no effect on the disinfection rate. Bicarbonate markedly suppressed E. coli inactivation. Decreasing the initial E. coli concentration reduced the required treatment time from 180 to 120 min. Increasing the temperature had a positive effect on the disinfection. HA concentration of 1 mg/L was the best for E. coli inactivation. In the presence of higher HA concentrations, it required a longer treatment time.
32 citations
TL;DR: A reticulated vitreous carbon cathode modified by anodic polarization in 20 wt% H2SO4 solution was used for drinking water disinfection under a neutral low electrolyte concentration condition and results show that H2O2 generation increased to approximately three times using the modification of the RVC.
31 citations
TL;DR: An electrokinetic (EK) system improved by a bipolar membrane (BPM) was used to recycle hexavalent chromium (Cr(VI)) from the chromite ore processing residual (COPR) in the form of H2CrO4.
30 citations
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TL;DR: Despite the overall high degradation efficiency of the UV LED-based AOPs, practical implementation is still limited and at lab scale, and more research on real water matrices at more environmentally relevant concentrations, as well as an estimation of energy requirements providing fluence-based kinetic data are required.
313 citations
09 Jul 2020
TL;DR: A comprehensive review of studies on electrodialysis applications in wastewater treatment, outlining the current status and the future prospect is presented, showing that zero or minimal liquid discharge approaches can be techno-economically affordable and competitive.
Abstract: This paper presents a comprehensive review of studies on electrodialysis (ED) applications in wastewater treatment, outlining the current status and the future prospect. ED is a membrane process of separation under the action of an electric field, where ions are selectively transported across ion-exchange membranes. ED of both conventional or unconventional fashion has been tested to treat several waste or spent aqueous solutions, including effluents from various industrial processes, municipal wastewater or salt water treatment plants, and animal farms. Properties such as selectivity, high separation efficiency, and chemical-free treatment make ED methods adequate for desalination and other treatments with significant environmental benefits. ED technologies can be used in operations of concentration, dilution, desalination, regeneration, and valorisation to reclaim wastewater and recover water and/or other products, e.g., heavy metal ions, salts, acids/bases, nutrients, and organics, or electrical energy. Intense research activity has been directed towards developing enhanced or novel systems, showing that zero or minimal liquid discharge approaches can be techno-economically affordable and competitive. Despite few real plants having been installed, recent developments are opening new routes for the large-scale use of ED techniques in a plethora of treatment processes for wastewater.
177 citations
TL;DR: In this paper, the authors have reviewed efforts and technological advances achieved so far in the pursuit of more efficient removal and recovery of heavy metals from industrial wastewaters and have evaluated their efficiency dependence on various parameters such as pH, temperature & initial dosing.
Abstract: Rapid industrialization, with economic prosperity set as the prime goal, has always created some secondary intolerable problems such as heavy metal contamination, wastewater that need remediation. Industrial wastewater is the major contributors to contamination of aquatic and terrestrial ecosystems with toxic heavy metals like arsenic, copper, chromium, cadmium, nickel, zinc, lead, and mercury whose hazardous bio-accumulative nature in biotic systems is attributed to their high solubility in the aquatic environments. There has, therefore, always been a need for the removal and/or recovery of these toxic, non-biodegradable, and persistent heavy metals from the industrial wastewater. For several decades, extensive investigations have been performed for easy, efficient, and economic removal of heavy metals with a varying degree of success. Chemical precipitation, adsorption, ion floatation, ion-exchange, coagulation/flocculation and electrochemical methods have been the most readily available conventional methods for the removal of these heavy metals. These methods however have posed some serious shortcomings such as high sludge production needing further treatment, low removal efficiency and high energy requirements. In the present years, newer more efficient, more economic and innovative technologies are being investigated. Recently photocatalysis, electrodialysis, hydrogels, membrane separation technique and introducing newer adsorbents have been developed for better adsorption. Hence in this paper, we have reviewed efforts and technological advances achieved so far in the pursuit of more efficient removal and recovery of heavy metals from industrial wastewaters and have evaluated their efficiency dependence on various parameters such as pH, temperature & initial dosing.
173 citations
TL;DR: This study reviews conventional technologies that are being applied at medium to large scales to purify water and emerging technologies currently in development and focuses on solar disinfection, including a novel technology recently developed in this field.
153 citations
TL;DR: In this article, a multi-functional honeycomb ceramic plate was fabricated by coating a layer of CuFeMnO4 on the surface of a cordierite honeycomb substrate.
133 citations