The ec process has been successfully employed in removing pollutants, pesticides, and radionuclides. The novel ec reactor with a rotating anode signiicantly enhanced textile wastewater treatment compared to the conventional model. Pubmed citations 243 reads 307 3 authors, including. Electrocoagulation, precipitation of ions heavy metals and colloids organic and inorganic using electricity has been known as an ideal technology to upgrade water quality for a long time and successfully applied to a wide range of pollutants in even wider range of reactor designs 1214. International conference on gasliquid and gasliquidsolid reactor engineering. This design greatly aids in increasing the amount of effective treatment per gallon of water. Khaled b, wided b, bechir h, elimame e, mouna l, zied t. Industrial water treatment with electrocoagulation. A novel reactor design for textile wastewater treatment zuriati b zakaria academia. Paper open access reactor design optimization on the. Investigation of electrocoagulation reactor design parameters effect on the removal of cadmium from synthetic and phosphate industrial wastewater. Electrochemical treatment of distillery spent wash using aluminum and iron electrodes.
Schematic diagram of electrocoagulation reactor is shown in figure 1. The novel ec reactor with a rotating anode significantly enhanced textile wastewater treatment compared to the conventional model. It is the process of destabilizing suspended, emulsified or dissolved contaminants in aqueous medium by introducing a minimal amount of electrical current. The impact of electrode corrosion behaviour, reactor geometry and current density on electrocoagulation efficiency were investigated for the. M e t a l l u r g i e p r o z e s s t e c h n i k recycling world water supply saltwater 97. Apr 30, 20 applicants provide for these and other advantages and objects in an electrocoagulation reactor consisting of electrocoagulation cells in which, beneath the plate bearing cartridges and in fluid communication therewith is a solids sump with a drain attached thereto for removing from a tank of the electrocoagulation cell, waste sediment that has. Treatment of textile wastewater using a novel electrocoagulation reactor design. A wide variety of opinions exist in the literature for key mechanisms and reactor configurations. Electrocoagulation for treatment of industrial effluents and. Phutdhawongs lab at kasetsart university, kps, thailand. The values of adsorption and passivation resistance validated the. All electrocoagulation processes and equipment are covered by the following. Centre for environmental science and engineering, indian institute of technologybombay, india. After the ec process, the power was switched off and the electrodes were dismantled.
These advances take the electrocoagulation process to a stateoftheart technology capable of producing consistent and dependable results in wastewater recovery and wastewater treatment applications. A novel systematic approach for reactor design was described for iron electrocoagulation ec and applied to drinking water treatment. The removal efficiencies of textile wastewater contaminants were high during the initial 10min of reaction time. Department of civil engineering, malaviya national institute of technology, jaipur302017, india. Investigation of electrocoagulation reactor design parameters.
This study investigates the effect of reactor design parameters on cadmium removal from industrial wastewater discharged by the tunisian chemical group tcg to improve as much as possible efficiency and cost of electrocoagulation ec process. Electrocoagulation process provides an alternative technique for the removal of pollutants from. Enter your mobile number or email address below and well send you a link to download the free kindle app. This opens the opportunity for a better design of ecef cells that will improve. Electrocoagulation process for textile wastewater treatment in continuous upflow reactor neha tyagi1, sanjay mathur2 and dinesh kumar1. This paper describes the treatment of textile wastewater using a unique design of an electrocoagulation ec reactor with a rotating anode. View electrocoagulation technology treat for discharge or reuse, limiting disposal costs and lowering chemical consumption and waste volumes. The influence of operating parameters like interelectrode distance ied, current density cd, temperature, ph, operating time rt and rotation speed on the removal efficiency of the contaminant was studied. May 10, 2009 electrocoagulation reactor is the instrument belongong to dr. Modeling and simulation by cfd of an electrocoagulation reactor.
Electrocoagulation systems have been in existence for many years dieterich, patented 1906, using a variety of anode and cathode geometries, including plates, balls, fluidized bed spheres, wire mesh. As water passes through the electrocoagulation cell, multiple reactions take place simultaneously. Stakeholder considerations several benefits to electrocoagulation may make it acceptable to the public. Jun 29, 2012 recently, electrochemical methods such as electrooxidation and electrocoagulation have been widely used as an attractive and suitable method for the treatment of various kinds of wastewater such as poultry and cattle slaughterhouse wastewater and wastewaters contain heavy metals, by virtue of various benefits including environmental compatibility, adaptability, energy efficiency, safety.
The future for electrocoagulation as a localised water treatment technology article in chemosphere may 2005 impact factor. Within the electrocoagulation reactor, several distinct electrochemical reactions are produced independently. Electrocoagulation in the treatment of industrial waters and wastewaters mikko vepsalainen. Nov 17, 20 the electrocoagulation ec process is an electrochemical means of introducing coagulants and removing suspended solids, colloidal material, and metals, as well as other dissolved solids from water and wastewaters. Investigation of electrocoagulation reactor design parameters effect on the removal of cadmium from. The experimental results confirm that the new reactor design with rotated anode impellers and cathode rings provided high treatment efficiency at a reduced reaction time and with lower energy consumption.
Cynthia a mitchell university of technology sydney 79 publications 1,031 citations see profile. Electrocoagulation ec technology for nitrate removal mohammad emamjomeh university of wollongong muttucumaru sivakumar. Nov 15, 2011 electrocoagulation is a complex process with a multitude of mechanisms operating synergistically to remove pollutants from the water. Electrocoagulation is a specialized coagulation technology utilizing electrical energy. The investigation of the ec reactor design parameter using aluminum electrodes was carried out for an initial concentration of 100 ppm keeping constant the volume of the solution 1 l, the current density j at 3. Electrocoagulation has a wide variety of wastewater treatment capabilities. The efloc electrocoagulation reactor applies best engineering practices to a formally outdated process. M e t a l l u r g i e p r o z e s s t e c h n i k recycling electrocoagulation treat. Then you can start reading kindle books on your smartphone, tablet, or computer.
This paper illustrates the treatment of dyes using an electrocoagulation ec process with a rotating anode. Electrocoagulation is a complex process with a multitude of mechanisms operating synergistically to remove pollutants from the water. The reactor designed as an airlift reactor with external loop has a maximum capacity of 150 liters l. Slaughterhouse wastewater contains various and high amounts of organic matter e. Treatment of textile dyes wastewater using electro. The impact of electrode corrosion behaviour, reactor geometry and current density on electrocoagulation efficiency were investigated for the treatment of molasses process wastewater.
Electrocoagulation in the treatment of industrial waters. The novel ec reactor with a rotating anode signiicantly enhanced textile wastewater treatment compared. Reactor design optimization on the electrocoagulation treatment of sugarcane molassesbased distillery wastewater. The total volume of liquid in the reactor depends on the height h 1 of the liquid in the separator and can vary between 100 to 150 l. Electrocoagulation ec reactors data sheet po box 415 kemah, tx 77565 p.
Electrocoagulation is not a proven technology for fullscale treatment of mining wastes. Characterizing the differing ec species is possible with novel techniques. For example, a plating wastewater stream was treated with the ec treatment process. This study elucidates the effects of current density, initial fluoride concentration, initial ph, and flow rate on the fluoride removal efficiency of a continuous ec reactor. Electrocoagulation ec is a broadspectrum treatment technology that removes total suspended solids tss, heavy metals, emulsified oils, bacteria and other contaminants from water. The future for electrocoagulation as a localised water treatment technology article in chemosphere may 2005. Aluminium electrochemistry in electrocoagulation reactors martin mechelhoff imperial college london. Continuous electrocoagulation treatment of wastewater. Textile wastewater is one of the most polluted types of wastewater because it contains a big quantity of dye.
However, due to a low level of environmental awareness and a lack of sufficient financial incentives, this technology was more or less abandoned. Slaughterhouse wastewater treatment by combined chemical. Defluroridation using a continuous electrocoagulation ec. This study investigates the effect of reactor design parameters on cadmium. The effect of various operational parameters such as rotational speed, current density cd, operational time rt, ph, temperature, and interelectrode distance ied on the pollutant. Pdf this study investigates the effect of reactor design parameters on cadmium removal from industrial. A new threeelectrode electrocoagulation reactor was investigated to increase the rate of removal of phosphate from domestic wastewater. Computational fluid dynamics for chemical reactor design. The technique involves dissolution of the sacrificial anodes to provide an active. It even replaces traditional treatment process such. Much of the pilot work that has been conductedusing electrocoagulation processes for treatment of metalcontaining wastewaters has speculated that costs could be very competitive with traditional chemical precipitation. Investigation of electrocoagulation reactor design. Electrocoagulation reactor kaspar electroplating corporation. It thereby reduces additional costs involved for the process.
This fact may cause difficulties when obtaining regulatory approvalacceptance of its use. Mining waste treatment technology selectiontechnology. Abstractthe conventional coagulation technique of textile wastewater treatments is plagued with the issue of low removal rate of pollutants and generation of a large quantity of sludge. Electrocoagulation has become a rapidly growing area of wastewater treatment due to its ability to remove contaminants that are generally more difficult to remove by filtration or chemical treatment systems, such as emulsified oil. Electrocoagulation by solar energy feed for textile. Modeling and simulation by cfd of an electrocoagulation. Electrocoagulation ec technology for nitrate removal. Plating wastewater is an excellent match for treatment with an electrocoagulation system. Reactor design and ec process description thirtysix batch runs of electrocoagulation treatment on distillery wastewater were carried out to determine the effects of the electrode configuration and geometry setting on the reduction of wastewater parameters such as cod, bod5, tss, turbidity, oil and grease, and ph. Electrocoagulation in the treatment of industrial waters and.
For over 100 years electrocoagulation has been used as an effective solution for the removal of heavy metals and suspended solids in wastewater treatment. Treatment of textile wastewater using a novel electrocoagulation. A novel reactor design for textile wastewater treatment. Electrocoagulation ec, is a technique used for wastewater treatment, wash water treatment, industrial processed water, and medical treatment. Removal of real textile dyes by electrocoagulation. Design development of an electrocoagulation reactor for molasses. Pdf investigation of electrocoagulation reactor design parameters. This study explored the best operating conditions for a novel electrocoagulation ec reactor with the rotating anode for textile wastewater treatment. On the surface of the cathode, water is hydrolyzed into hydrogen gas and hydroxyl groups. No single empirical or systematic approach has emerged over the years in the design of electrocoagulation reactors. The direction of the electric field was then reversed, by switching the power supply lead from the anode to the. Electrocoagulation ec, the passing of electrical current through water, has proven very effective in the removal of contaminants from water.
The electrode consumption, energy consumption and operating costs of the novel reactor were found to below. Electrocoagulation has become a rapidly growing area of wastewater treatment due to its ability to remove contaminants that are generally more difficult to remove by filtration or chemical treatment systems, such as emulsified oil, total petroleum. Optimization of electrocoagulation process to treat grey. Jul 01, 2016 this paper investigates the optimum operational conditions of a novel rotated bed electrocoagulation ec reactor for the treatment of textile wastewater. The effects of various operational parameters such as rotational speed of the anode, current density cd, recirculation flow rate, operational time rt and continuous flow re. A national pollutant discharge elimination system permit would be required to allow discharge of the treated effluent. Design issues the lack of mechanistic understanding of electrocoagulation is reflected in the design of reactors. Electrocoagulation and advanced electrochemical oxidation. A mine technology group tested electrocoagulation in 2008 in conjunction with an electrocoagulation technology provider. Electrocoagulation reactors water for purification passed through electrochemical reactor anode usually fe or al. Reactor design optimization on the electrocoagulation treatment of.
The water treated very well in the ec reactor and generated a good floc that settled well following treatment. A novel rotated bed electrocoagulation ec reactor was developed for the treatment of textile wastewater. Treatment of textile wastewater using a novel electrocoagulation reactor design chapter pdf available august 2018 with 5 reads how we measure reads. In order to produce an effluent suitable for stream discharge, chemical coagulation and electrocoagulation techniques have been particularly explored at the laboratory pilot scale for organic compounds removal from slaughterhouse effluent. Iron electrocoagulation reactor design parameters for nom removal. Design development of an electrocoagulation reactor for. Dissolved contaminates react with the sacrificial ions and gases precipitating them from solution and then removed by flotation or other methods. Two laboratoryscale vertical plate electrocoagulation reactors were used for this investigation. Electrocoagulation and advanced electrochemical oxidation global advantech limited exceptional clean technologies for a sustainable future 2 of 5 global advantechs electrocoagulation systems contain a number of innovative design features and benefits to ensure effective and continuous operation. This electrolysis process utilizes methods that precipitate out large quantities of contaminants in a single operation. Investigation of electrocoagulation reactor design parameters effect.
Aluminium electrochemistry in electrocoagulation reactors. Recently, electrocoagulation ec technique gained immense attention due to its efficiency. This genesis water technologies electrocoagulation wastewater treatment technology is the distinct economical and environmental choice for. Electrocoagulation for treatment of industrial effluents. Initially, two electrodes graphite plate and air cathode were connected with 0. View electrocoagulation filtration services waste water laboratory evaluation, onsite pilot tests, system engineering and design bakercorp provides full service solutions to ensure your project success. Recycle drilling water with electrocoagulation ec ec key benefits ec simple process flow. Thus, applicants provide a method of transporting a quantity of water from a removed location to an electrocoagulation reactor, moving the water through the electrocoagulation reactor while subjecting the water to an electric field, then discharging the waste water from the electrocoagulation reactor through a discharge port.
Improved electrocoagulation reactor for rapid removal of. Meanwhile, electrons flow freely to destabilize surface charges on suspended solids and emulsified oils. Electrocoagulationnew technology for the wastewater treatment. The future for electrocoagulation as a localised water.
Metal removal rates indicate that electrocoagulation should be able to achieve regulatory limits. Model ec300 ec470 ec630 ec800 minimum flow gpm 10 35 75 150 efloc series specifications efloc reactor. Abstract chemical coagulation is commonly used in raw water and wastewater treatment plants for the destabilisation of pollutants so that they can be removed in the subsequent separation processes. The electrocoagulation ec process is an electrochemical means of introducing coagulants and removing suspended solids, colloidal material, and metals, as well as other dissolved solids from water and wastewaters. Four cathodes and five anodes are alternatively placed in the cell and connected to a dc generator and the distance between two consecutive electrodes is 1.
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