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A chemical experimental group to explore whether the wastewater is acidic

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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A chemical experimental group to explore whether the wastewater is acidic
The method of disposal of the spent electrolyte solution
The method of disposal of the spent electrolyte solution

The cleaning process is carried out first in the ,anode, chamber of a two-chamber ,electrolysis, cell with a cation-exchange membrane with 5-10 A·h of electricity passing through the solution and rate of circulation of the solution of 1 l/h, then successively in middle chambers of four three-chamber ,electrolysis, cells with cation-exchange and anion-exchange membranes with 30-60, 15-30, 15-30 and ...

Electrochemical technologies for wastewater treatment and ...
Electrochemical technologies for wastewater treatment and ...

TCE degradation was investigated in a recirculated solution of an ,electrolysis, system ,containing, a cast ,iron anode, and a copper foam cathode. The cast ,iron anode, generated a reducing electrolyte that prevented the electron and proton combination with dissolved oxygen, thus the reduction of TCE on the copper foam cathode was enhanced.

Water | Free Full-Text | Electrocoagulation in Wastewater ...
Water | Free Full-Text | Electrocoagulation in Wastewater ...

Bing-Fang discovered that by using a room temperature of 25 degrees Celsius, ,iron, and stainless steel electrodes, a voltage and a pH of 4, and a Na 2 SO 4 concentration of 0.7 mg/L, and an ,electrolysis, time of 30 minutes, electrocoagulation could treat a simulated ,wastewater, with Cu 2+ and Cr 6+ removal of 93% and 98.91 effectively .

Electrochemical technologies for wastewater treatment and ...
Electrochemical technologies for wastewater treatment and ...

TCE degradation was investigated in a recirculated solution of an ,electrolysis, system ,containing, a cast ,iron anode, and a copper foam cathode. The cast ,iron anode, generated a reducing electrolyte that prevented the electron and proton combination with dissolved oxygen, thus the reduction of TCE on the copper foam cathode was enhanced.

Simultaneous removal of Co Cu and Cr from water by ...
Simultaneous removal of Co Cu and Cr from water by ...

many pollutants from water and ,wastewater,, there are few studies on the simultaneous removal of metals by the electrocoagulation method using magnesium ,as anode,. This article presents the results of the studies undertaken on the electrochemical removal of cobalt, copper, and ,chromium, using magnesium ,as anode, and galvanized ,iron, as cathode.

Water | Free Full-Text | Electrocoagulation in Wastewater ...
Water | Free Full-Text | Electrocoagulation in Wastewater ...

Bing-Fang discovered that by using a room temperature of 25 degrees Celsius, ,iron, and stainless steel electrodes, a voltage and a pH of 4, and a Na 2 SO 4 concentration of 0.7 mg/L, and an ,electrolysis, time of 30 minutes, electrocoagulation could treat a simulated ,wastewater, with Cu 2+ and Cr 6+ removal of 93% and 98.91 effectively .

Chromium Emissions From Chromium Electroplating and ...
Chromium Emissions From Chromium Electroplating and ...

The average hexavalent ,chromium, emission factors presented in Tables 3-10 and 3-11 for each source test were calculated by the following equation: (Emission rate, kg/hr)(Sample time, hr) Emission factor, mg/Ah = x 106 (Current, Ah) Based on the existing data, an uncontrolled emission factor of 10 mg/Ah (0.15 gr/Ah) is considered to be representative of uncontrolled hexavalent ,chromium, ...

Journal of Physics: Conference Series PAPER OPEN ACCESS ...
Journal of Physics: Conference Series PAPER OPEN ACCESS ...

Electrocoagulation utilizes ion exchange at the anode to trigger oxidation-reduction reactions on chrome and plate waste to form flocs which can then be physically treated to purify of them. Electrocoagulation is an effective and quick method for treating water or wastewater containing dissolved …

Electrokinetic Remediation | Geoengineer.org
Electrokinetic Remediation | Geoengineer.org

The ,electrolysis, reactions near the electrodes change the soil pH. ,Acidic, conditions near ,anode, will cause decay and degradation of the electrolyte. There could be stagnant zones between electrodes where the migration is very slow (Sharma and Reddy., 2004).

Application of the electrocoagulation technique for ...
Application of the electrocoagulation technique for ...

as arsenic, by aluminum in comparison to ,iron, electrodes could be that the adsorption capacity of hydrous aluminum oxide for As(III) is much lower in comparison to hydrous ferric oxides [23]. By using combination of electrodes between aluminum and ,iron, for treating arsenic ,wastewater,, Gomes et al. [24] demonstrated the substitution

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

Abstract: A method and apparatus for enriching the ,chromium, concentration in an operating chrome plating from a spent chrome plating solution ,containing, hexavalent ,chromium,, trivalent ,chromium, and extraneous metal ions is dislosed. A spent platining solution vessel is divided into an ,anode, chamber and a cathode chamber by a porous container. A hollow primary ,anode, is provided in the ,anode, ...

Treatment of wastewater by electrocoagulation: a review ...
Treatment of wastewater by electrocoagulation: a review ...

17/11/2013, · ,Iron, and aluminum are the common electrodes used for ,wastewater, treatment due to easy availability, low cost, and better dissolution. However, ,iron, is preferred because it is relatively cheaper. The aluminum plates are also finding applications in ,wastewater, treatment either alone or in combination ,with iron, plates due to the high coagulation efficiency of Al 3+ (Shen et al. 2003 ).

Short Communication Removal of Cr(VI) by ...
Short Communication Removal of Cr(VI) by ...

and horizontal rough ,iron, cylinder electrodes in removing hexavalent ,chromium, from synthetic ,wastewater,. The influence of ,anode, surface roughness, current density, initial Cr(VI) concentration, and rotation speed of the ,anode, on the removal efficiency was explored to …

Treatment of oilfield wastewater by combined process of ...
Treatment of oilfield wastewater by combined process of ...

The micro-electrolysis experiments were carried out in a rectangular reactor with 1,000 mL working volume. The micro-electrolysis cell was equipped with iron scraps (C45E4 steel) as anode and activated carbon as cathode. The reactor was immersed in an ice-water bath to …

Application of iron-loaded activated carbon electrodes for ...
Application of iron-loaded activated carbon electrodes for ...

Chromium, is widely used in a variety of industrial process. As a result, a large amount of ,chromium,-contaminated waste is produced, which pollute the soil, water and atmosphere 1,2,3,4.,Chromium, ...

Application of iron-loaded activated carbon electrodes for ...
Application of iron-loaded activated carbon electrodes for ...

Chromium, is widely used in a variety of industrial process. As a result, a large amount of ,chromium,-contaminated waste is produced, which pollute the soil, water and atmosphere 1,2,3,4.,Chromium, ...

Electrokinetic Remediation | Geoengineer.org
Electrokinetic Remediation | Geoengineer.org

The ,electrolysis, reactions near the electrodes change the soil pH. ,Acidic, conditions near ,anode, will cause decay and degradation of the electrolyte. There could be stagnant zones between electrodes where the migration is very slow (Sharma and Reddy., 2004).

Application of Electrocoagulation and Electrolysis on the ...
Application of Electrocoagulation and Electrolysis on the ...

At the ,anode,, (6) Water ,electrolysis, at the cathode, (7) where, M = ,anode, material and n = number of electrons involved in the oxidation/reduction reaction. Ions of soluble metals such as Al and Fe are generated at the ,anode, and react with the hydroxide ions formed at the cathode, and the metal hydroxides are produced as expressed (8). (8)

Electrochemical Techniques in Textile Processes and ...
Electrochemical Techniques in Textile Processes and ...

Lopes et al. [] compared three different ,anode, materials: ,iron,, conducting polymer (Polypyrrole- (Ppy- ) doped with ,chromium, in wool textile), and boron doped diamond (BDD) electrode applied to degradation of a direct dye (Direct Red 80).With all of them, 99% of dye degradation was obtained, but BDD electrode also achieved 87% of COD removal instead of 45–50% achieved with the other ...

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