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Bichromate ion in industrial acid 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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Bichromate ion in industrial acid wastewater
REVERSE ELECTRODIALYSIS PROCESSES FOR THE …
REVERSE ELECTRODIALYSIS PROCESSES FOR THE …

the frame of RED, of a redox process for the ,wastewater treatment,, namely the cathodic reduction of Cr(VI) to Cr(III) or the ,treatment, of ,wastewater, polluted by an azoic dye, the ,Acid, Orange 7 (AO7), was widely studied in order to evaluate the possible utilization of RED for the simultaneous generation of electric energy and

Electrodialysis Technology. Theory and Applications.
Electrodialysis Technology. Theory and Applications.

wastewater, volume and is injected with ,acid, to prevent scaling. EDR was patented in 1969 (Mihara & Kato, 1969) and is a variation of this system which uses electrode polarity reversal to automatically clean membrane surfaces. 2.2 Membranes The membranes are produced in the form of fo ils composed of fine polymer particles with

The Electrodialysis Advantage | WWD
The Electrodialysis Advantage | WWD

Electrodialysis, is a membrane separation process in which ions are transported through semipermeable membranes under the influence of an electric field from one solution to another in order to reduce the ionic content of water. The ,electrodialysis, stack is composed of alternately constructed cation and anion exchange membranes to form dilute and concentrate chambers.

Electrodialysis Technology. Theory and Applications.
Electrodialysis Technology. Theory and Applications.

wastewater, volume and is injected with ,acid, to prevent scaling. EDR was patented in 1969 (Mihara & Kato, 1969) and is a variation of this system which uses electrode polarity reversal to automatically clean membrane surfaces. 2.2 Membranes The membranes are produced in the form of fo ils composed of fine polymer particles with

Reclamation of Aniline Wastewater and CO2 Capture Using ...
Reclamation of Aniline Wastewater and CO2 Capture Using ...

In this work, a novel bipolar membrane electrodialysis (BMED)-based process was proposed to treat aniline wastewater and simultaneously capture CO2. Such a process consists of predesalinization, CO2 capture, and aniline removal in three steps.

CN103435195A - Method for treating acid and salty organic ...
CN103435195A - Method for treating acid and salty organic ...

The method comprises the following steps: (a) adjusting the pH value of the ,wastewater, to be 8-9; (b) feeding the ,wastewater, which is treated in the step (a) into a settling pond, subsequently transferring into an oil separating pond to remove the oil in the ,wastewater,; (c) treating the ,wastewater, obtained after the step (b) by using a press filter, so as to separate solid grains from out of the ,wastewater,; (d) feeding the ,wastewater, obtained in the step (c) into an ,electrodialysis, …

Treatment of Ammonia-Nitrogen Wastewater by Electrodialysis
Treatment of Ammonia-Nitrogen Wastewater by Electrodialysis

The ammonia-nitrogen ,wastewater, was purified by using ,electrodialysis, (ED) device in this paper. The NH4Cl solution was used as the artificial ammonia-nitrogen ,wastewater,. Various unsteady factors in the experiment may cause the concentration polarization phenomenon, which may have negative effect on ED cell performance and its lifetime. The limiting voltage was confirmed as 12V in this study.

The Electrodialysis Advantage | WWD
The Electrodialysis Advantage | WWD

Electrodialysis, is a membrane separation process in which ions are transported through semipermeable membranes under the influence of an electric field from one solution to another in order to reduce the ionic content of water. The ,electrodialysis, stack is composed of alternately constructed cation and anion exchange membranes to form dilute and concentrate chambers.

Optimal Treatment of Hypersaline Industrial Wastewater via ...
Optimal Treatment of Hypersaline Industrial Wastewater via ...

The wastewater from a fluid catalytic cracking refinery is difficult to treat because of its high salt content. An optimized bipolar membrane electrodialysis (BMED) strategy to dispose of this wastewater is proposed, and its effect is studied via a combination of experiments and simulations.

Electrodialysis and Electrodialysis Reversal
Electrodialysis and Electrodialysis Reversal

Chemical use Scale inhibitor and acid may be required for process control to prevent scaling. Periodic chemical cleaning is typically conducted using acid, caustic, EDTA, disinfectant, or other anti-scaling chemicals. Expected lifetime of critical components ED membrane lifetime is estimated to be 4-5 years.

Electrodialysis Treatment of Nickel Wastewater | SpringerLink
Electrodialysis Treatment of Nickel Wastewater | SpringerLink

Bouhidel K E, Rumeau M (2004) Ion-exchange membrane fouling by boric ,acid, in the ,electrodialysis, of nickel electroplating rinsing waters: generalization of our results. Desalination 167:301–310. doi: 10.1016/j.desal. 2004.06.139 Google Scholar

Treatment of Ammonia-Nitrogen Wastewater by Electrodialysis
Treatment of Ammonia-Nitrogen Wastewater by Electrodialysis

The ammonia-nitrogen ,wastewater, was purified by using ,electrodialysis, (ED) device in this paper. The NH4Cl solution was used as the artificial ammonia-nitrogen ,wastewater,. Various unsteady factors in the experiment may cause the concentration polarization phenomenon, which may have negative effect on ED cell performance and its lifetime. The limiting voltage was confirmed as 12V in this study.

The use of Microfiltration and electrodialysis for ...
The use of Microfiltration and electrodialysis for ...

The ,electrodialysis, emerges as a new tech-nology for the ,wastewater treatment, and has proven effective for the recovery of water and electrolyte con-centration. In this study the possibility of using the pretreatment with microfiltration and ,electrodialysis, technique to the AMD ,treatment,, was evaluated aiming water reuse.

Ammonium nitrate wastewater treatment by coupled membrane ...
Ammonium nitrate wastewater treatment by coupled membrane ...

Abstract. A process coupling membrane electrolysis and electrodialysis is implemented to treat ammonium nitrate wastewater. Membrane electrolysis produces ammonia and nitric acid while electrodialysis reconcentrates the depleted salt solution. Ammonia is removed continuously by in situ stripping; thus allowing gas production with a constant current ...

Water Treatment and Electrolysis - Evoqua
Water Treatment and Electrolysis - Evoqua

MAGNETO Anodes can be used within the ,treatment, of potable water, process water and ,wastewater, and swimming pool water. The anodes have also been used for ,Electrodialysis,, (reverse) electro deionization, softening of water, de-scaling, direct or indirect oxidation and break-down of organic contamination or cyanide, removal of small solid particles by electroflotation and membrane processes.

INTEGRATION OF ELECTRODIALYSIS WITH BIPOLAR MEMBRANE INTO ...
INTEGRATION OF ELECTRODIALYSIS WITH BIPOLAR MEMBRANE INTO ...

treated by electrodialysis (ED) in combination with evaporation and crystallization. The resulting product of this cleaning technology is pure water and sodium sulfate, which can be used for example in the glass industry. (Jež 2008) The possible upgrade of a typical uranium …

THE STUDY OF ELECTRODIALYSIS TREATMENT OF WASTEWATER ...
THE STUDY OF ELECTRODIALYSIS TREATMENT OF WASTEWATER ...

electrodialysis treatment, of ,wastewater, generated in the ,synthesis of ultramicrodispersed metal oxide, powders on alternating current in a concentrated solution of sodium hydroxide, obtained by neutralization with acetic ,acid, alkali seized by oxide powders of nickel and iron. This reduces the amount of wash water by 60 %. It was found that

Reclamation of Aniline Wastewater and CO2 Capture Using ...
Reclamation of Aniline Wastewater and CO2 Capture Using ...

In this work, a novel bipolar membrane electrodialysis (BMED)-based process was proposed to treat aniline wastewater and simultaneously capture CO2. Such a process consists of predesalinization, CO2 capture, and aniline removal in three steps.

INTEGRATION OF ELECTRODIALYSIS WITH BIPOLAR MEMBRANE INTO ...
INTEGRATION OF ELECTRODIALYSIS WITH BIPOLAR MEMBRANE INTO ...

treated by electrodialysis (ED) in combination with evaporation and crystallization. The resulting product of this cleaning technology is pure water and sodium sulfate, which can be used for example in the glass industry. (Jež 2008) The possible upgrade of a typical uranium …

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