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waste oil extraction units

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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waste oil extraction units
Workplace Safety and Health Guidelines
Workplace Safety and Health Guidelines

Electroplating, waste has to be chemically reduced or oxidised prior to discharge ... Neutralisation of an ,acidic or alkaline, waste is the addition of acids or bases ... ,wastewater,. Neutralisation of an ,acidic, waste stream can cause precipitation of heavy metals.

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% ...

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% ...

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 pollution, which persist for long distance in river stream decreases recreation capacity of stream impairing self-purification, disturbed penetration of sun rays which in turn retard photosynthesis activity.

Removal of boron from wastewater by precipitation of a ...
Removal of boron from wastewater by precipitation of a ...

investigated various methods and evaluated two effective processes for removing boron from ,wastewater,, based on adsorption on ,magnesium, oxide and ,ion, exchange. Unfortunately, the large consumption of chemicals and expensive regeneration steps for boron‐specific resin make these technologies uneconomical, especially when the boron concentration is high.

Ion Exchange - Wastewater Treatment - Progressive Gardening
Ion Exchange - Wastewater Treatment - Progressive Gardening

In essence,, ion exchange, is a sorption process and can also be considered a reversible chemical reaction. The common appli cations of, ion exchange, are water softening (,removal, of "hardness", ions, such as CA2+ and Mg2+) and nitrate, removal, in advanced, wastewater, treatment operations.

Advanced Technologies in Electroplating and Effluent ...
Advanced Technologies in Electroplating and Effluent ...

Electroplating,, uses toxic chemicals and generates ... Aerated lagoons, ,Wastewater, stabilization ponds, Trickling filters, Anaerobic treatment ... • Spent ,alkaline, and ,acidic, etchants and cleaners • Spent strippers • Solvent degreasers • Waste and process bath treatment sludges

Treatment of Industrial Effluents - Environmental Pollution
Treatment of Industrial Effluents - Environmental Pollution

Alkaline wastewater, up to 20% and condensate ,wastewater, up to 40% concentration can be treated effectively in a batch scale activated sludge unit after the necessary phosphorus supplementation. The treated effluent in both the cases exhibits less than 100 mg/1 BOD. The BOD removal in both the cases is greater than 90%.

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 ...

Electroplating - IFC
Electroplating - IFC

lutions are acid ,or alkaline, and may contain complexing agents such as cyanides. Waste Characteristics Any or all of the substances used in ,electroplat-ing, (such as ,acidic, solutions, toxic metals, sol-vents, and cyanides) can be found in the ,wastewater,, either via rinsing of the product or from spillage and dumping of process baths. The

Effective removal of calcium and magnesium sulfates from ...
Effective removal of calcium and magnesium sulfates from ...

(4) Ion exchange, Ion, exchange resins are frequently used to, remove ions, such as Ca and, Mg, from aqueous media. It is reported that the hardness of the industrial, wastewater, from Inner Mongolia, China was reduced from 5.42 × 10 3 to 71.2 mg L −1 with a total, removal, efficiency of 98%. 26

High-pH-Magnesium Coagulation–Flocculation in Wastewater ...
High-pH-Magnesium Coagulation–Flocculation in Wastewater ...

Among the currently employed chemical unit processes in, wastewater, treatment,, coagulation–flocculation, has received considerable attention for yielding high pollutant removal efficiency. Over the...

Ion exchange system design for removal of heavy metals ...
Ion exchange system design for removal of heavy metals ...

Ion, exchange system design for removal of heavy metals ,from acid, mine drainage ,wastewater, R. W. Gaikwad1, V. S. Sapkal2 2and R. S. Sapkal This paper discusses the methodology used to determine the optimal ,ion,-exchange column size to process all separate batches of feeds ,from acid, mine drainage ,wastewater,.

Water Ionizer Comparisons - Alkaline Water Plus
Water Ionizer Comparisons - Alkaline Water Plus

The companies that use advanced ,electroplating, methods are the ones with the larger R&D ... PH is a measure of the acidity or alkalinity of a solution. The scale ranges from 1 (very ,acidic,) to 14 (very ,alkaline,.) The pH scale is a logarithmic scale, meaning that water with a pH of 8 is 10 times more ,alkaline, than 7 pH, neutral, water.

Removal of copper and COD from electroplating effluents by ...
Removal of copper and COD from electroplating effluents by ...

electroplating wastewater, was effectively reduced from its initial value of 65 mg L-1 to less than the permissible limit ... In ,acidic, environment (pH<2) the removal is low, ... (at ,alkaline, pH). It is well known that these species

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.

Effective removal of calcium and magnesium sulfates from ...
Effective removal of calcium and magnesium sulfates from ...

removal efficiencies of 75 and 52%, respectively.16 Oxalic ,acid, saponi ed with an alkali can also be used to so en high-hardness ,wastewater,, where Ca2+ can be precipi-tated andasmallamountofMg2+ isco-precipitated whenoxalic ,acid, used as the precipitant. The particle sizes of CaC 2O 4 or MgC 2O 4 wereextremelysmall,resultingindifficultyofthesolid/

Wastewater Treatment for the Industrial Metal Finishing ...
Wastewater Treatment for the Industrial Metal Finishing ...

Neutralization of ,wastewater, that is highly ,acidic, (low pH) or highly basic (high pH) is required for discharge to municipal sewer systems or to rivers and streams. The most common allowable pH range for discharge is generally 6 to 9 standard units (S.U.) but can be …

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