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Electrolysis of acidic wastewater containing Cr

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 acidic wastewater containing Cr
Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · Wastewater obtained from Guangxi Nanning sugar refinery (COD 86.02 g/L) is first diluted by 100 times, then treated by adding amphiphilic flocculants (CMTMC) mg/L at pH 6.6, COD removal to reached to 95%. The wastewater color changed from fuscous brown to buff yellow.

Wastewater Treatment from Recycled Plastics | ChemREADY
Wastewater Treatment from Recycled Plastics | ChemREADY

Our process uses coagulants, in conjunction with existing air floating processes in plastic washing waste water, to treat the wastewater quickly for reuse. To remove the solids a Filter Press is used to efficiently dewater the solids for ease of handling and return of clean water.

Water Treatment of Phosphoric Acid
Water Treatment of Phosphoric Acid

A'small, dose of, ferrous sulfate,, or a similar, reducing coagulant, is very low quantities can do this rather quickly and effectively. Stay away from actual "reducing agents" - they don't offer anything but background characteristics. AS an alternate, maybe you should consider looking into recycling the phosphoric acid instead of treating it.

Treatment of 124 -Acid Wastewater Combined Flocculation ...
Treatment of 124 -Acid Wastewater Combined Flocculation ...

The results showed that: used dicyandiamide formaldehyde as the flocculant, the optic flocculation conditions was: the ,wastewater, pH value for 3, flocculants to ,waste water, at the ratio of 1%, stirred ,quickly, for 2 min and slowly for 10 min at 70 ℃, standing for 40 min. COD removal rate reached 83.7%,The COD Surplus 2240mg/L; organic bentonite being as adsorbent, the optic adsorption ...

Characteristics of Wastewater | Wastewater Management
Characteristics of Wastewater | Wastewater Management

A high concentration of either an ,acid, (pH ≪ 7) or alkali (pH ≫ 7) in ,wastewater, is indicative of industrial wastes. The determination of pH value of sewage is important since certain treatment methods depend on proper pH value of the ,wastewater, for their efficient workings.

Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · ,Wastewater, obtained from Guangxi Nanning sugar refinery (COD 86.02 g/L) is first diluted by 100 times, then treated by adding amphiphilic flocculants (CMTMC) mg/L at pH 6.6, COD removal to reached to 95%. The ,wastewater, color changed from fuscous brown to buff yellow.

Treating Water Pollution - Water Pollution
Treating Water Pollution - Water Pollution

Using ozone to ,treat wastewater, has many benefits: – Kills bacteria effectively. – Oxidises substances such as iron and sulphur so that they can be filtered out of the solution. – There are no nasty odours or residues produced from the treatment. – Ozone converts back into oxygen ,quickly,, and leaves no trace once it has been used.

Maintaining spa water quality is easier than you think ...
Maintaining spa water quality is easier than you think ...

Hot water causes chemical reaction rates to increase. This means it is possible for two people in a 400-gallon spa to deplete a sanitizer residual of 1 ppm free chlorine or 2 ppm bromine in just 15 minutes. Chlorine and bromine are the two sanitizers most commonly used …

Industrial Wastewater Treatment | Services | ChemTreat Inc.
Industrial Wastewater Treatment | Services | ChemTreat Inc.

ChemTreat's advanced ,industrial wastewater treatment, methods make us best-in-class. We offer defoamer, ... The ratio of acrylic ,acid, to acrylamide determines the degree of charge on the molecule. ... ChemTreat ,quickly, implements a program to solve odor control problems at a ,wastewater, facility.

Selective Removal of Heavy Metals from Acidic Wastewater ...
Selective Removal of Heavy Metals from Acidic Wastewater ...

One established procedure to ,treat, this type of ,wastewater, is based on neutralizing the ,acid, with lime and storing the contaminants in solid form. Another option is the precipitation of the heavy metals and arsenic in the form of sulfides using H 2 S generated from …

Treatment of 124 -Acid Wastewater Combined Flocculation ...
Treatment of 124 -Acid Wastewater Combined Flocculation ...

The results showed that: used dicyandiamide formaldehyde as the flocculant, the optic flocculation conditions was: the ,wastewater, pH value for 3, flocculants to ,waste water, at the ratio of 1%, stirred ,quickly, for 2 min and slowly for 10 min at 70 ℃, standing for 40 min. COD removal rate reached 83.7%,The COD Surplus 2240mg/L; organic bentonite being as adsorbent, the optic adsorption ...

Removal of Chelated Metals - Wastewater Treatment Made ...
Removal of Chelated Metals - Wastewater Treatment Made ...

9/5/2006, · 1. Lower pH to about 2 with sulfuric acid 2. Raise pH with lime to about 12 3. Add DTC 4. Add ferric chloride 5. Add flocculent 6. Settle for three to six hours and 7. Filter This process was laborious and required handling dangerous chemicals. The treatment was pH-sensitive and often failed to meet discharge requirements; failed

Constructed Wetlands: A Natural Treatment Alternative
Constructed Wetlands: A Natural Treatment Alternative

How Wetlands are Used to ,Treat Wastewater, Constructed wetland systems have many uses. When they are applied to ,treat, domestic sewage or ,wastewater, from typical small community sources, they provide additional, secondary, or advanced treatment to ,wastewater, that already has had most solid wastes removed in a septic tank or by some other form of preliminary treatment.

Maintaining spa water quality is easier than you think ...
Maintaining spa water quality is easier than you think ...

Hot water causes chemical reaction rates to increase. This means it is possible for two people in a 400-gallon spa to deplete a sanitizer residual of 1 ppm free chlorine or 2 ppm bromine in just 15 minutes. Chlorine and bromine are the two sanitizers most commonly used …

Characteristics of Wastewater | Wastewater Management
Characteristics of Wastewater | Wastewater Management

In order to determine their content, the sample of ,wastewater, is first treated with dilute hydrochloric ,acid, which results in liberation of fatty acids. The latter are then evaporated. The residue is …

Wastewater Laboratory Procedures And Chemistry
Wastewater Laboratory Procedures And Chemistry

Acidify with 2 ml of concentrated sulfuric acid by allowing the acid to run down the neck of the bottle above the surface of the liquid. 6. Restopper and shake well until the precipitate has dissolved.

Effluent Treatment Plant Design Operation And Analysis Of ...
Effluent Treatment Plant Design Operation And Analysis Of ...

Ion exchange using natural or synthetic resins removes calcium, magnesiumand carbonate ions from water, replacing them with hydrogen and hydroxyl ions.Regeneration of ion exchange columns with strong acids and alkalis produces a wastewaterrich in hardness ions which are readily precipitated out, especially when in admixture withother ,wastewater,.1.3 Effluent Treatment PlantIndustrial ,wastewater, treatment covers the mechanisms and processes used to ,treat, …

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