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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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Treatments of alkaline non-cyanide alkaline cyanide and ...
Treatments of alkaline non-cyanide alkaline cyanide and ...

The pH of synthetic electroplating wastewater was determined to be within the range of 5.7-6.5, which is similar to the pH of acidic Zn electroplating wastewater (Kobya et al. 2017).... Recovery of...

Wastewater treatment: a case study of electronics ...
Wastewater treatment: a case study of electronics ...

20/9/2018, · However, electroplating wastewater has low organic matter, but have a high toxicity. Among the prime contaminants in electroplating wastewater, cyanide and suspended metals are of great concern. To obtain high-quality electroplated products, cyanide is extensively used (Zhang et al. 2015 ), which results in the production of toxic wastewater which contains cyanide.

Electroplating- Lenntech
Electroplating- Lenntech

Wastewater, composition: Almost all the substances and products used in ,electroplating, can be found in the ,wastewater,, for instance ,acidic, solutions, toxic metals, solvents, and cyanides. This contamination is a consequence of the different process steps such as spillage, rinsing, dumping of process baths.

Improving the Electroplating Process Using pH Control ...
Improving the Electroplating Process Using pH Control ...

13/6/2017, · ,Electroplating Wastewater, Treatment. ,Electroplating wastewater, must be treated for toxic chemical removal before discharge to municipal sewers. Just as pH needs to be controlled in the ,electroplating, process to keep metal ions in solution, pH can also be used in ,wastewater, treatment to precipitate ions for removal via sedimentation and filtration.

SOLUTION FOR WASTEWATER PROBLEM RELATED TO ELECTROPLATING …
SOLUTION FOR WASTEWATER PROBLEM RELATED TO ELECTROPLATING …

Electroplating wastewater, is variable in character and alkaline in nature. It gives rise to obnoxious smell. The color imparts visible ... ,acidic, behaviour of the solution generates the dangerous hydrogen cyanide gas that creates air pollution problem. Treatment with barium chromate

Heavy Metal Complexes Wastewater Treatment with Chelation ...
Heavy Metal Complexes Wastewater Treatment with Chelation ...

Abstract: In view of the existing technical problems about treatment of ,electroplating wastewater, , the new technology of processing ,electroplating wastewater, with organic heavy metal chelator-dithiocarbamates is developed. Using ,electroplating wastewater, containing copper, nickel and chromium complexes with EDTA, ammonia and citric acid as an example, this study investigated the …

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

12. What are the characteristics and treatment principles of acid-base ,wastewater,? ,Acidic wastewater, mainly comes from steel plants, chemical plants, dye factories, ,electroplating, plants and mines, which contain various harmful substances or heavy metal salts. The acid mass fraction varies widely, from less than 1% at low and greater than 10% ...

Electrochemical Treatment of Electroplating Wastewater ...
Electrochemical Treatment of Electroplating Wastewater ...

Various metals processing and finishing industries as electroplating produce large volume of wastewater that contain many kinds of toxic substance such as acid cyanide, alkaline cleaning agent, degreasing solvents, oil and fat and heavy metals.(2) Industrial effluents from electroplating industries contain hi gh amounts of heavy metal ions, such as chromium, nickel, copper, cadmium and zinc.

Characterization and Treatment of Real Wastewater from an ...
Characterization and Treatment of Real Wastewater from an ...

23/5/2019, · The rejection of the stage of ,electroplating, deposit contains widely metals and the following anions: BO 3−, CO 2− 3, Cr 2 O 2− 7, F −, PO 4 3−, Cl −, NO −3 and SO 4 2−. Generally, ,wastewater, contains many heavy metals. The most important of cations are Cr 6+, it is reduced to Cr 3+, while CN-is oxidized in the preliminary ...

Nickel removal from electroplating industry wastewater: A ...
Nickel removal from electroplating industry wastewater: A ...

electroplating industry wastewater is released directly into the surface water bodies. The nickel electroplating wastewater contains high nickel pollution along with other process parameters. The low pH is used for plating on metal surface using nickel ion leads to …

Study of the electrocoagulation of electroplating industry ...
Study of the electrocoagulation of electroplating industry ...

acidic, medium, the predominance of the free cation Al 3+ is observed until pH 3.5. As the pH increases, different ... The EC experiments were performed on the settled ,wastewater, of ,electroplating, industry with two aluminum electrodes fitted in a volume of 1.8 liters. The electrodes have the following dimensions: length = 15 cm, width

SOLUTION FOR WASTEWATER PROBLEM RELATED TO ELECTROPLATING …
SOLUTION FOR WASTEWATER PROBLEM RELATED TO ELECTROPLATING …

Electroplating wastewater, is variable in character and alkaline in nature. It gives rise to obnoxious smell. The color imparts visible ... ,acidic, behaviour of the solution generates the dangerous hydrogen cyanide gas that creates air pollution problem. Treatment with barium chromate

Treatment of Electroplating Waste -- Student Project
Treatment of Electroplating Waste -- Student Project

2000. A. Anusha: Some good books available on the ,treatment of electroplating waste, include: "Operation and Maintenance of Surface ,Finishing Wastewater, Treatment Systems" [affil. link to book on Amazon] and Water and Waste Control For the Plating Shop".For a much briefer treatment of the subject, there is coverage in the Metal ,Finishing, Guidebook, the "Products ,Finishing," Directory, and the ...

C i v i l entalE Journal of Civil nvironmental DOI: n f o ...
C i v i l entalE Journal of Civil nvironmental DOI: n f o ...

electroplating industry shows pH 3.8 which is also in acidic nature. The permissible limit of pH of the discharge of electroplating industrial effluent in the range of 7 to 10. High acidic condition increases the tendency to leach the heavy metal, which are toxic to living being and contaminate the groundwater and soil. The temperature of wastewater

Treatment of Electroplating Waste -- Student Project
Treatment of Electroplating Waste -- Student Project

2000. A. Anusha: Some good books available on the ,treatment of electroplating waste, include: "Operation and Maintenance of Surface ,Finishing Wastewater, Treatment Systems" [affil. link to book on Amazon] and Water and Waste Control For the Plating Shop".For a much briefer treatment of the subject, there is coverage in the Metal ,Finishing, Guidebook, the "Products ,Finishing," Directory, and the ...

Characterization and Treatment of Real Wastewater from an ...
Characterization and Treatment of Real Wastewater from an ...

23/5/2019, · The rejection of the stage of ,electroplating, deposit contains widely metals and the following anions: BO 3−, CO 2− 3, Cr 2 O 2− 7, F −, PO 4 3−, Cl −, NO −3 and SO 4 2−. Generally, ,wastewater, contains many heavy metals. The most important of cations are Cr 6+, it is reduced to Cr 3+, while CN-is oxidized in the preliminary ...

Electroplating- Lenntech
Electroplating- Lenntech

Wastewater, composition: Almost all the substances and products used in ,electroplating, can be found in the ,wastewater,, for instance ,acidic, solutions, toxic metals, solvents, and cyanides. This contamination is a consequence of the different process steps such as spillage, rinsing, dumping of process baths.

Heavy Metal Complexes Wastewater Treatment with Chelation ...
Heavy Metal Complexes Wastewater Treatment with Chelation ...

Abstract: In view of the existing technical problems about treatment of ,electroplating wastewater, , the new technology of processing ,electroplating wastewater, with organic heavy metal chelator-dithiocarbamates is developed. Using ,electroplating wastewater, containing copper, nickel and chromium complexes with EDTA, ammonia and citric acid as an example, this study investigated the …

Electrochemical oxidation of polyethylene glycol in ...
Electrochemical oxidation of polyethylene glycol in ...

Electrochemical oxidation of polyethylene glycol (PEG) in an ,acidic, (pH 0.18 to 0.42) and high ionic strength ,electroplating, solution was investigated. The ,electroplating, solution is a major source of ,wastewater, in the printing wiring board industry.

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