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Electrolysis of acid wastewater containing dichromate

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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Electrolysis of acid wastewater containing dichromate
Ion-Exchange Resins: A Retrospective from Industrial and ...
Ion-Exchange Resins: A Retrospective from Industrial and ...

Ion,-,exchange, resins comprise one of the most important scientific developments of the 20th century. Their applicability to water softening, environmental remediation, ,wastewater, treatment, hydrometallurgy, chromatography, biomolecular separations, and catalysis was recognized in numerous publications.

Higher Acid Recovery Efficiency of Novel Functionalized ...
Higher Acid Recovery Efficiency of Novel Functionalized ...

Membrane technology compared to other separation technologies by employing anion exchange membranes (AEMs) is favorable for waste acid recovery via diffusion dialysis (DD) process. It is an emanating technology for acid recovery, which is established on the difference in diffusivity between salts and acids [ 10 ].

Resin Adsorption and Ion Exchange to Recover and ...
Resin Adsorption and Ion Exchange to Recover and ...

1/1/2014, · In summary, ,ion exchange, and adsorber processes may be successfully applied for the recovery, purification, and fractionation of phenolic compounds. Systematic studies allow the deduction of optimal sorption and desorption conditions and, thus, the optimization of processes, which so far have hardly been assessed in detail.

Industrial wastewater treatment equipment-ion exchange ...
Industrial wastewater treatment equipment-ion exchange ...

Ion exchange resin method Ion exchange resin has exchange. The functions of selection, adsorption and catalysis are mainly used in industrial wastewater treatment to recover heavy metals and precious and rare metals, pur,ify toxic, substances, and, remove acidic or basic organic substances such, as, phenols, acids and amines, in organic, wastewater,.

Nitrogen and Phosphorus Recovery from Wastewater
Nitrogen and Phosphorus Recovery from Wastewater

99 % P in ,wastewater, streams and ,recover, it in the form of fertilizer (struvite). ,Acid, hydrolysis can convert recovered P into usable phosphoric ,acid, and phosphate fertilizers. Physical-chemical adsorption and ,ion exchange, media can reduce P to trace or non-detect concentrations, ...

(PDF) A Novel Recovery Method for Treating Wastewater ...
(PDF) A Novel Recovery Method for Treating Wastewater ...

eralizer is an effective technique to ,recover, boron and fluorine from ,wastewater,. Borate ions can be found in wastewaters derived from plat- ing, semiconductor production, metal processing, and ...

Nitrogen and Phosphorus Recovery from Wastewater ...
Nitrogen and Phosphorus Recovery from Wastewater ...

20/8/2015, · Chemical precipitation can remove 80–99 % P in wastewater streams and recover it in the form of fertilizer (struvite). Acid hydrolysis can convert recovered P into usable phosphoric acid and phosphate fertilizers.

News – Wydział Instalacji Budowlanych Hydrotechniki i ...
News – Wydział Instalacji Budowlanych Hydrotechniki i ...

Tannic ,acid,-modified silver nanoparticles enhance the anti-Acanthamoeba activity of three multipurpose contact lens solutions without increasing their cytotoxicity. ... ,Waste,-to-carbon: ... Cost-effectiveness analysis of ,wastewater, treatment by the activated ,sludge, and biofilter methods.

Ion Exchange Wastewater Treatment & Recycling Systems
Ion Exchange Wastewater Treatment & Recycling Systems

Among ,wastewater, treatment, recycling and recovery technologies, our unique design for ,Ion Exchange, Systems is the only technology that can yield close to 98% recovery of the rinses. Other technologies, such as RO or standard ,Ion Exchange, Systems can ,recover, a maximum of 85% to 90% and produces 10% to 15% reject on a continuous basis in the RO case that would require separate treatment.

Ion Exchange Wastewater Treatment & Recycling Systems
Ion Exchange Wastewater Treatment & Recycling Systems

Among ,wastewater, treatment, recycling and recovery technologies, our unique design for ,Ion Exchange, Systems is the only technology that can yield close to 98% recovery of the rinses. Other technologies, such as RO or standard ,Ion Exchange, Systems can ,recover, a maximum of 85% to 90% and produces 10% to 15% reject on a continuous basis in the RO case that would require separate treatment.

(PDF) A Novel Recovery Method for Treating Wastewater ...
(PDF) A Novel Recovery Method for Treating Wastewater ...

eralizer is an effective technique to recover boron and fluorine from wastewater. Borate ions can be found in wastewaters derived from plat- ing, semiconductor production, metal processing, and ...

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

Bipolar membrane method, is a kind of membrane separation method, which is suitable for the treatment of acid pickling wastewater (waste acid) with high acid concentration. Membrane separation is a highly efficient process for the separation of metal ions and acids with high selectivity of membrane to ions, which can fully recover acids and metal salts.

Ion-Exchange Primer | Products Finishing
Ion-Exchange Primer | Products Finishing

1/8/1996, · ,Multiply the concentration factor by the influent concentration of the contaminating ion(s) to get the level of that ion in the regenerant wastewater., For example, if one cu ft of resin treated 2,000 gal of water and it took 100 gal of water to regenerate one cubic foot, 2,000 divided by 100 equals 20.

Higher Acid Recovery Efficiency of Novel Functionalized ...
Higher Acid Recovery Efficiency of Novel Functionalized ...

exchange membranes, (AEMs), is favorable for waste acid recovery via, diffusion dialysis (DD) process., It is an emanating technology for acid recovery, which is established on the difference in diffusivity between salts and acids [10]. Especially, the AEM-based DD process is attracting remarkable attention currently to recover acid from the acid drainage

Metals Recovery from Wastewater Treatment Sludge ...
Metals Recovery from Wastewater Treatment Sludge ...

The first is what we call simple recovery systems, which involve using one to multiple counter-flow rinse recovery tanks that are made up with DI water. This rinsewater flows from the tank farthest from the plating tank back to the rinse tank right after the plating tank, hence, counter flow to the direction of work.

Phosphorus removal and recovery from wastewater via hybrid ...
Phosphorus removal and recovery from wastewater via hybrid ...

21/1/2021, · Alternative emerging methods to remove phosphorus down to very low concentrations and potentially ,recover, it involve adsorption 14,15 and ,ion exchange, 16,17.

Recovery of Lithium from Wastewater Using Development of ...
Recovery of Lithium from Wastewater Using Development of ...

Recycling lithium from waste lithium batteries is a growing problem, and new technologies are needed to ,recover, the lithium. Currently, there is a lack of highly selective adsorption/,ion exchange, materials that can be used to ,recover, lithium. We have developed a magnetic lithium ,ion,-imprinted polymer (Fe3O4@SiO2@IIP) by using novel crown ether.

6.4 Ion Exchange & Precious Metals Recovery - B/A PC ...
6.4 Ion Exchange & Precious Metals Recovery - B/A PC ...

This type of fouling occurs as a faulty regeneration technique when using sulfuric ,acid, on a strong or weak ,acid, cation ,exchange, unit. How are calcium sulfate precipitants removed from resins? Repeated back washing with soft water followed by repeated cleaning with a 10% hydrochloric ,acid, at a rate of 0.25 gallons per minute per cubic foot of resin.

Metals Recovery from Wastewater Treatment Sludge ...
Metals Recovery from Wastewater Treatment Sludge ...

1/5/2011, · The first is what we call simple recovery systems, which involve using one to multiple counter-flow rinse recovery tanks that are made up with DI water. This rinsewater flows from the tank farthest from the plating tank back to the rinse tank right after the plating tank, hence, counter flow to the direction of work.

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