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Principle of treating acid chromium containing wastewater by electrolysis

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Principle of treating acid chromium containing wastewater by electrolysis
Electrochemical removal of chromium from aqueous solutions ...
Electrochemical removal of chromium from aqueous solutions ...

15/2/2011, · Up to now, numerous treatment methods have been studied to remove chromium from wastewater, such as reduction , chemical precipitation , ion exchange , , membrane separations , , electrochemical precipitation , ultrafiltration , flotation , electrocoagulation , solvent extraction , sedimentation , reverse osmosis and adsorption , .

US4014766A - Electrolytic treatment of waste water ...
US4014766A - Electrolytic treatment of waste water ...

Waste water is subjected to electrolysis in an ,electrolytic cell, having an anode comprising an insoluble central electrode and a body of particulate iron pieces disposed therearound and in electrical contact therewith, whereby impurities in the waste water become occluded within a floc of iron hydroxide formed ,by electrolytic, dissolution of the iron pieces, and the floc ,containing, the impurities is subjected to …

Electrocoagulation (EC) technology for wastewater ...
Electrocoagulation (EC) technology for wastewater ...

10/7/2017, · ,Electrocoagulation, (EC) is the process of destabilizing suspended, emulsified, or dissolved contaminants in an aqueous medium by introducing an electric current into the medium. It can be used for wastewater treatment where DC voltage is applied to the electrodes, usually made of iron or aluminum, and the electrolyte is water or wastewater.

Recent Applications of Electrocoagulation in Treatment of ...
Recent Applications of Electrocoagulation in Treatment of ...

A continuous EC system with a 450-ml ,electrolytic cell, bearing aluminum electrodes was utilized in treating synthetic ,wastewater, polluted with azo-based Orange II dye. In this experiment, it was found clearly evident that when operating in optimum conditions (near-neutral initial pH, 350 ml/min flow rate, 4 g/l added NaCl), the color of the dye solution had almost completely vanished.

Integrated electrochemical processes for textile industry ...
Integrated electrochemical processes for textile industry ...

According to our previous study [ 21 ], treatment of textile wastewater by EC coupled with various EAOPs such as electrocoagulation-anodic oxidation (EC-AO), electrocoagulation-peroxicoagulation (EC-PC), EC-EF processes showed the effectiveness of sequential treatment of …

Hexavalent Chromium Removal by Reduction with Ferrous ...
Hexavalent Chromium Removal by Reduction with Ferrous ...

Hexavalent ,chromium, reduction through redox ,electrolytic cell, with urea and cow urine as anolyte. ... chemical oxidation and biological aerated filter processes for ,treatment, of electroplating ,wastewater,. Separation Science and Technology 2015, 146 ... Detoxification of ,chromium,-,containing, slag by Achromobacter sp. CH-1 and selective recovery ...

Purification And Treatment Of Electroplating Baths And ...
Purification And Treatment Of Electroplating Baths And ...

Abstract: An aqueous acidic trivalent ,chromium, electrolyte and process for electrodepositing ,chromium, platings comprising an electrolyte ,containing, trivalent ,chromium, ions, a complexing agent, halide ions, ammonium ions and a reducing agent comprising a metal ion selected from the group consisting of Gold, Silver, Platinum, Palladium, Rhodium, Iridium, Osmium, Ruthenium, Rhenium, Gallium, Germanium, …

(PDF) Overview of Electrolytic treatment: An alternative ...
(PDF) Overview of Electrolytic treatment: An alternative ...

ECF processes can be applied to a broad range of water and ,wastewater, treatment systems. These are most effective in removing inor ganic contaminants and patho gens.

CHAPTER 14 - Electroplating Flashcards | Quizlet
CHAPTER 14 - Electroplating Flashcards | Quizlet

The ,treatment, is performed in an ,electrolytic cell, with the piece behaving as cathode or anode- it behaves as an ELECTRODE - . The electrolyte is an aqueous solution ,containing, the metal ion - the one that will deposit - or a complex of it - and other substances needed to improve the performance of the ,cell,.

Dual Electrodes Oxidation of Dye Wastewater with Gas ...
Dual Electrodes Oxidation of Dye Wastewater with Gas ...

Compared to a traditional one ,cell, reactor, this reactor cuts the energy cost by 50%, and thus might lead to reconsideration of the electrochemical role in ,wastewater, treatment. A Pt/C gas diffusion electrode (GDE) is fabricated and used as a cathode fed with oxygen-,containing, gases to …

Purification And Treatment Of Electroplating Baths And ...
Purification And Treatment Of Electroplating Baths And ...

Abstract: An aqueous acidic trivalent ,chromium, electrolyte and process for electrodepositing ,chromium, platings comprising an electrolyte ,containing, trivalent ,chromium, ions, a complexing agent, halide ions, ammonium ions and a reducing agent comprising a metal ion selected from the group consisting of Gold, Silver, Platinum, Palladium, Rhodium, Iridium, Osmium, Ruthenium, Rhenium, Gallium, Germanium, …

Purification And Treatment Of Electroplating Baths And ...
Purification And Treatment Of Electroplating Baths And ...

Abstract: A process for recovery of reusable, chromic acid, from, waste chromic acid, solution containing impurities, which process comprises a first step in which the solution, containing chromic acid, is introduced into the cathode compartment in an electro-dialysis process and free, chromic acid, or chromate ions in the above solution are transferred to the anode compartment, a second step in which …

REMOVAL OF METALS FROM INDUSTRIAL WASTEWATER
REMOVAL OF METALS FROM INDUSTRIAL WASTEWATER

The ,treatment, of ,wastewater containing, metals can be broadly divided into two categories. ... the electrocoagulation reactor is an ,electrolytic cell,. ... the capturing of heavy metal ions because the structure of some resins with acidic functional groups contains sulfonic ,acid,[6].

(PDF) Removal of Hexavalent Chromium-Contaminated Water ...
(PDF) Removal of Hexavalent Chromium-Contaminated Water ...

adsorption has been widely used for the treatment of In view of the above, several methods such as chromium containing wastewaters. adsorption, biosorption, reduction, and filtration Based on its size and shape, activated carbon is reverse osmosis, ion-exchange, foam flotation, elec- classified into four types: powder-activated carbon trolysis, and surface adsorption have been reported (PAC), granular-activated …

Frontiers | Comparative Study on Electrochemical Treatment ...
Frontiers | Comparative Study on Electrochemical Treatment ...

The CB electrode is especially suitable for cyanide ,wastewater treatment,. The main mechanism of the system of 2 V is electro adsorption and enrichment precipitation. At 4 V, the system mainly uses electrodeposition to remove all ions in ,wastewater,, and the ,treatment, efficiency of electrodeposition was higher than that of electro adsorption.

Applications of Combined Electrocoagulation and ...
Applications of Combined Electrocoagulation and ...

2/10/2017, · However,, electrocoagulation, (EC) is an inefficient method for the removal of stable and dissolved organic pollutants. Electrooxidation (EOx), which was evaluated as one of the most promising technologies for the treatment of wastewater containing soluble organic compounds, can directly and indirectly oxidize small organic pollutants.

Applications of Combined Electrocoagulation and ...
Applications of Combined Electrocoagulation and ...

2/10/2017, · However, electrocoagulation (EC) is an inefficient method for the removal of stable and dissolved organic pollutants. Electrooxidation (EOx), which was evaluated as one of the most promising technologies for the treatment of wastewater containing soluble organic compounds, can directly and indirectly oxidize small organic pollutants.

CHAPTER 14 - Electroplating Flashcards | Quizlet
CHAPTER 14 - Electroplating Flashcards | Quizlet

The treatment is performed in an ,electrolytic cell, with the piece behaving as cathode or anode- it behaves as an ELECTRODE - . The electrolyte is an aqueous solution ,containing, the metal ion - the one that will deposit - or a complex of it - and other substances needed to improve the performance of the ,cell,.

Hexavalent Chromium Removal by Reduction with Ferrous ...
Hexavalent Chromium Removal by Reduction with Ferrous ...

Hexavalent ,chromium, reduction through redox ,electrolytic cell, with urea and cow urine as anolyte. ... chemical oxidation and biological aerated filter processes for ,treatment, of electroplating ,wastewater,. Separation Science and Technology 2015, 146 ... Detoxification of ,chromium,-,containing, slag by Achromobacter sp. CH-1 and selective recovery ...

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