electrochemical wastewater Articles
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Hydroxyl radical production in electrochemical reactor
OH radical production during electrolysis of water was monitored to show that it could be involved in an indirect oxidation of pollutants in electrochemical wastewater treatment. The OH radical concentration in the electrochemical reactor was measured by using a probe compound, p-chlorobenzoate (pCBA). Titanium and titanium coated with RuO2/PtO2 were used as a cathode and an anode, respectively, ...
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Removal of reactofix supra red HBSL from industrial effluent using electrochemical and adsorption techniques
Many industries use dyes and pigments to colour their products. The largest customers of these dyes are textile, tannery, paper and pulp, pharmaceuticals, cosmetics, food processing units and they are in turn the most serious polluters of our environment. The proper treatment of aqueous wastes is fundamental for the preservation of environmental equilibria and the quality of aquatic systems. ...
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Treatment of actual metalworking wastewaters by coagulation combined with electrochemical oxidation
The technical and economical viability of physico-chemical treatment followed by electrochemical oxidation of two actual wastes produced in a metalworking industry has been studied. The physico-chemical process was found to be able to achieve the breakdown of the emulsions in the treatment of both effluents, although it requires a complementary treatment to deal with the soluble organic matter. ...
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Continuous flow electrocoagulation in the treatment of wastewater from dairy industries
Dairy industry wastewater contains high levels of organic matter, consisting mainly of fat, protein and products of their partial microbial decomposition. In the present study, the use of continuous electrocoagulation is proposed for the primary treatment of dairy wastewater. The electrochemical treatment was carried out in a continuous flow cell with aluminum electrodes. The influence of the ...
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STEP - System for Solid and Liquid Waste Put to the Test
Wendy Laursen details the System for Environmental Protection (STEP) system which is being installed inside a twenty-foot ISO container to be trialled onbard the Canadian Coast Guard vessel, Pierre Radisson. The STEP container houses Terragon's single-drum Micro-Auto Gasifciation System (MAGS) and Wastewater Electrochemical Treatment Technology (WETT). MAGS aims to transform organic, ...
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Electrochemical treatment of wastewater polluted by nitrate: selective reduction to N2 on Boron-Doped Diamond cathode
Electrochemical tests of nitrate reduction on Boron-Doped Diamond cathode are investigated through a Design of Experiments (DOE) method. The results show good reduction of nitrate into almost exclusively N2. In the studied domain, the best experimental conditions are high initial nitrate content, low acidic pH values and low working current densities. The application of DOE conclusions on an ...
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Development of a system for treatment of coconut industry wastewater using electrochemical processes followed by Fenton reaction
The coconut processing industry generates a significant amount of liquid waste. New technologies targeting the treatment of industrial effluents have emerged, including advanced oxidation processes, the Fenton reaction, and electrochemical processes, which produce strong oxidizing species to remove organic matter. In this study we combined the Fenton reaction and electrochemical process to ...
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Electrochemical oxidation of wastewater – opportunities and drawbacks
Electrochemical oxidation by means of boron-doped diamond (BDD) anodes generates a very efficient oxidizing environment by forming hydroxyl radicals, providing effective water purification for elimination of persistent pollutants. In this project the degradation rates of organic and inorganic substances are investigated. Experiments were performed in laboratory and pilot scale with synthetic ...
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Ammonium nitrogen removal from wastewater with a three-dimensional electrochemical oxidation system
Ammonium-containing wastewater could cause the promotion of eutrophication and a hindrance to the disinfection of water supplies. In this study, the feasibility of removing low-concentration ammonium nitrogen from synthetic and real wastewater by electrochemical oxidation was investigated. Using laboratory-scale electrochemical systems, the effects of chloride concentration, current density, ...
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Electrochemical disinfection of secondary wastewater treatment plant (WWTP) effluent
In this work the electrochemical disinfection of the effluent of a secondary wastewater treatment plant is investigated. In the experimental work, performed on-site with real effluents of the WWTP located in Vuelta Ostrera (Cantabria, Spain), boron-doped diamond (BDD) electrodes were employed. The initial concentration of E. coli in the effluent of the WWTP varied in the range ...
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Electrochemical oxidation of wastewater containing aromatic amines using a flow electrolytic reactor
Aromatic amines are environmental pollutants and represent one of the most important classes of industrial and natural chemicals. Some types of complex effluents containing these chemical species, mainly those originated from chemicals plants are not fully efficiently treated by conventional processes. In this work, the use of electrochemical technology through an electrolytic pilot scale flow ...
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Terragon’s Powerhouse Women Share Their Stories in Cleantech
It’s 2020, and the cleantech industry is becoming more and more diverse. Women are leading the development and commercialization of innovative technologies. Successful and inspiring women take high-level leadership positions, creating new technologies that are changing the world. Today, Terragon’s women share their stories and experiences in this ...
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Electrochemical oxidation of aromatic sulphonated acids on a boron-doped diamond electrode
The electrochemical oxidation of an industrial wastewater containing aromatic sulphonated acids on a boron-doped diamond electrode (BDD) was studied using cyclic voltammetry and bulk electrolysis. The influence of the current density and flow-rate was investigated in order to find the optimum conditions. It was found that a polymeric film, which caused BDD deactivation, was formed in the ...
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Electrodialysis Bipolar Membranes for Water Treatment
Electrodialysis Bipolar Membranes (EDBM) is a type of membrane technology that is used to separate dissolved ionic compounds from water and wastewater. Electrodialysis is an electrochemical process that can involve the use of bipolar membranes and ion exchange membranes. Bipolar membranes for electrodialysis have gained significant attention in recent years due to its efficiency, ...
By YASA ET
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Combined electrocoagulation and electro-oxidation of industrial textile wastewater treatment in a continuous multi-stage reactor
A combined electrocoagulation (EC) and electrochemical oxidation (EO) industrial textile wastewater treatment potential is evaluated in this work. A fractional factorial design of experiment showed that EC current density, followed by pH, were the most significant factors. Conductivity and number of electrooxidation cells did not affect chemical oxygen demand degradation (DCOD). Aluminum and ...
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What is an Electrocoagulation ETP and who can use this treatment technology?
What is an Electrocoagulation ETP? An Electrocoagulation ETP is an effluent treatment plant used for the treatment of water, wastewater, and process water. Electrochemical technology and in particular specialized electrocoagulation has become a sustainable water treatment technique due to its ability to remove multiple contaminants more efficiently and economically than conventional chemical ...
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Applicability of an electrochemical Fenton-type process to actual wastewater treatment
The applicability of an electrochemical Fenton-type process (EF-HOCl-ReFe) to the treatment of three actual wastewaters, namely wastewater from an automobile factory (automobile wastewater), metal scrap-cleansing wastewater, and municipal wastewater, is discussed in this research. The EF-HOCl-ReFe successfully removed the chemical oxygen demand (COD) from automobile wastewater pre-treated by ...
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On-Site Electrochemical Treatment of An Antimicrobial API in Pharmaceutical CIP Rinse Water - Case study
Customer Pain Point A US pharmaceutical manufacturing facility is adding a new production line that will produce more than 1.25 million gallons per year of clean-in-place (CIP) rinse water contaminated with an antimicrobial active pharmaceutical ingredient (API) in a background water matrix of USP grade oil, other organic compounds, suspended solids and fluoride The site wanted to achieve PNEC ...
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Electrocoagulation (EC) VS Electro-oxidation (EO) in Wastewater Treatment
In this article we present and analyse the main features of Electrocoagulation (EC) and Electro-oxidation (EO) wastewater treatment technologies. What is Electrocoagulation (EC)? An Electrocoagulation (EC) system essentially consists of pairs of conductive metal plates in parallel, which act as monopolar electrodes suspended in an electrolytic cell containing wastewater. Direct current is ...
By YASA ET
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On-Site Treatment of An Antiparasitic API in CIP Rinse Water to Eliminate Off-Site Disposal - Case study
Customer Pain Point A US pharmaceutical manufacturing plant generates several hundred thousand gallons per year of cleanin-place (CIP) rinse water contaminated with an antiparasitic active pharmaceutical ingredient (API) and organic solvents. The stream was historically trucked off-site for incineration because the API is ecotoxic and cannot be discharged to sewer. The site experienced periodic ...
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