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Acid Pollutants in Wastewater

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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Acid Pollutants in Wastewater
Treatment of Wastewater Containing a Mixture of Heavy ...
Treatment of Wastewater Containing a Mixture of Heavy ...

The main aim of the scientific research was to study the ion-exchange processes in the ,treatment, of industrial wastewaters ,containing, a high concentration of heavy metal ions (Cu2+, Zn2 +, Ni2+). The sorption results of heavy metal mixtures (Cu-Zn, Cu-Ni) from model solutions of sulfate salts on a strong-acid KU-2–8 cation exchanger

Electroflotation for Treatment of Industrial Wastewaters ...
Electroflotation for Treatment of Industrial Wastewaters ...

Electroflotation is a wastewater treatment process defined as the separation of suspended particles from water using gas bubbles generated during electrolysis of water. The present study intends to provide a comprehensive review of applications of electroflotation process in treatment of industrial wastewaters.

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

Abstract: The invention relates to a process for electrolytic ,treatment, of copper foil, comprising the steps of: (A) applying a voltage across an anode and cathode, wherein the anode and cathode are in contact with an electroplating composition ,containing, a gelatin component; (B) removing organic particulate matter by contacting the electroplating solution ,containing, the organic particulate matter with an …

Enhanced methane producing microbial electrolysis cells ...
Enhanced methane producing microbial electrolysis cells ...

Microbial ,electrolysis, cells (MECs) consisting of a bioanode and biocathode offer a promising solution for ,wastewater treatment,. These systems can degrade organic substances at the bioanode while converting carbon dioxide (CO 2), a major greenhouse gas, to a value-added fuel, methane (CH 4) at the biocathode.The bioelectrodes were inoculated with a mixed culture under anaerobic conditions.

Comparison of artificial diamond production by ...
Comparison of artificial diamond production by ...

There being a mount of nitric acid,sulfuric acid and hydrochloric acid used in artificial diamond production by conventional post-,treatment, technique,so a mass of hazardous gas,,acidic wastewater,,and waste contained heavy metal ,nickel, lead to be difficultly treated afterward,which resulting in both squandering of resource and polluting of environment.The ,electrolysis, technique was applied ...

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

Generally, alkaline mercury-,containing wastewater, is usually treated by chemical coacervation or sulfide precipitation; ,acidic, mercury-,containing wastewater, can be treated by metal reduction; low-concentration mercury-,containing wastewater, can be treated by activated carbon adsorption, chemical coacervation or activated sludge; organic mercury ,wastewater, is difficult to treat and is usually first oxidized to …

CN101948200A - Micro-electrolysis flocculation method for ...
CN101948200A - Micro-electrolysis flocculation method for ...

The invention discloses a micro-,electrolysis, flocculation method for treating acid ,waste water containing, heavy metals in mine. The treatment step is as follows: ,waste water, pretreatment, iron-carbon micro-,electrolysis, and flocculation and precipitation, wherein the ,waste water, is pretreated and then fed into an iron-carbon bed reactor with an iron-carbon mass filling ratio of 1 …

Process Optimization of Electrochemical Oxidation of ...
Process Optimization of Electrochemical Oxidation of ...

electrochemical ,wastewater treatment,. In order to relieve these issues, it is essential to find suitable operating parameters to achieve the oxidation performance of ammonia to N2. As reported by Zou et al. [28] and Chen et al. [29], an electrochemical method for ,wastewater treatment, is complicated,

Development of application of ion-exchange membrane ...
Development of application of ion-exchange membrane ...

The technology combining electrodialysis with ,electrolysis, is called ion-exchange membrane ,electrolysis,.Its application in ,wastewater treatment, has commenced recently.According to the fruits acquired in environmental protection by ion-exchange membrane ,electrolysis,,its mechanism and applications to ,wastewater treatment, are overviewed.Deficiency and progress in the future of ion …

Semiconductor Wastewater Treatment
Semiconductor Wastewater Treatment

Semiconductor fabrication processes such as chemical mechanical planarization (CMP), lithography, and etching, stripping and cleaning, result in a variety ,of wastewater, compositions (CMP, BG, ,acid, and alkaline waste, metal-bearing waste and organic waste), which require specialized ,treatment, to meet stringent global and local reclamation and discharge regulations.

Recovery of Precious Metal Material Ni from Nickel ...
Recovery of Precious Metal Material Ni from Nickel ...

Electrolysis could effectively recover nickel, however, the, Ni2+ concentration of, the, residual electrolyte was much higher than, the, restriction of 1 mg/L, so …

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

In the last decades the most talked advances in the treatment of wastewater has been the use of, ozone., The use of, ozone, is becoming more popular in wastewater treatment. The development in technology of producing, ozone, acidic behaviour of the solution generates the dangerous hydrogen cyanide gas that creates air pollution problem.

CN101948200A - Micro-electrolysis flocculation method for ...
CN101948200A - Micro-electrolysis flocculation method for ...

The invention discloses a micro-,electrolysis, flocculation method for treating acid ,waste water containing, heavy metals in mine. The ,treatment, step is as follows: ,waste water, pretreatment, iron-carbon micro-,electrolysis, and flocculation and precipitation, wherein the ,waste water, is pretreated and then fed into an iron-carbon bed reactor with an iron-carbon mass filling ratio of 1-5 for reacting ...

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

4. Electrolysis. Electrolytic treatment of high-concentration circuit board wastewater can reduce the content of heavy metal ions, but the electrolysis method is effective only for the treatment of high-concentration, heavy metal, ions, and consumes a large amount of electricity, and can only process a single metal. 5.

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

Indirect electro-oxidation methods based on the cathodic electrogeneration of hydrogen peroxide are being developed for the treatment of certain wastewaters, such as acidic wastewaters containing toxic and refractory organic pollutants. 231–236 The direct remediation of wastewaters using this approach is limited by the low oxidation potential of H 2 O 2.

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

Indirect electro-oxidation methods based on the cathodic electrogeneration of hydrogen peroxide are being developed for the ,treatment, of certain wastewaters, such as ,acidic, wastewaters ,containing, toxic and refractory organic pollutants. 231–236 The direct remediation of wastewaters using this approach is limited by the low oxidation potential of H 2 O 2.

Electrochemical removal of nickel ions from industrial ...
Electrochemical removal of nickel ions from industrial ...

First, nickel containing wastewater were separately treated by EL,, ED, and, EDI,, effects of there operating parameters, voltage, initial Ni2+ concentration, pH and water flux on the nickel recovery...

Treatment of Wastewater Containing a Mixture of Heavy ...
Treatment of Wastewater Containing a Mixture of Heavy ...

Treatment of ,Wastewater Containing, a Mixture of Heavy Metal Ions (Copper-Zinc, Copper-,Nickel,) using Ion-Exchange Methods Anastasiia Koliehova1*, Hanna Trokhymenko 1, Melnychuk Svitlana1, Mykola Gomelya2 1 Admiral Makarov National University of Shipbuilding, 54024, Heroiv Ukrainy av. 9, Mykolaiv, Ukraine

Treatment of Wastewater Containing a Mixture of Heavy ...
Treatment of Wastewater Containing a Mixture of Heavy ...

The main aim of the scientific research was to study the ion-exchange processes in the ,treatment, of industrial wastewaters ,containing, a high concentration of heavy metal ions (Cu2+, Zn2 +, Ni2+). The sorption results of heavy metal mixtures (Cu-Zn, Cu-Ni) from model solutions of sulfate salts on a strong-acid KU-2–8 cation exchanger

Copper and nickel recovery from acidic polymetallic ...
Copper and nickel recovery from acidic polymetallic ...

1/7/2007, · ,Acidic, polymetallic, wastewaters, are generated during the pyrometallurgical treatment of chalcopyrite for the production of primary, copper., The most important, wastewater, streams originate from the, copper, refining and the, electrolyte, regeneration stages, as well as the sulphuric acid and the precious metals plants.

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