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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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BARIUM CARBONATE TREATMENT OF SULFURIC ACID WASTEWATER ...
BARIUM CARBONATE TREATMENT OF SULFURIC ACID WASTEWATER ...

sulfuric ,acid, loads from the pickling operation consist of 12,350 lbs per day in the strong waste liquor and 2,180 lbs per day in the rinse- water and may vary from these figures by 35% or more (2).

Standard Analytical Procedures for Water Analysis
Standard Analytical Procedures for Water Analysis

c. Sulphuric ,acid,, H 2SO 4, 0.02 N and 6 N. d. Ascorbic ,acid, solution: Dissolve 0.1 g ascorbic ,acid, in water and make up to 100 mL in a volumetric flask. Prepare fresh daily. e. Buffer reagent: Dissolve 136 g sodium acetate, NaC 2H 3O 2.3H2O, in water, add 40 mL 1N acetic ,acid, and dilute to 1 L. f. Stock dye solution: Stock solutions can be ...

Wastewater Treatment Of Coal Chemical Industry - Screen ...
Wastewater Treatment Of Coal Chemical Industry - Screen ...

The content of H2S, NH3 and phenol in the phenol containing ,acid wastewater, produced by the direct coal liquefaction project is high. The concentration of H2S, NH3 and phenol can reach the biochemical treatment range by adopting double tower stripping and isopropyl ether extraction.

Treatment and Utilization of Chemical Wastewater In Power ...
Treatment and Utilization of Chemical Wastewater In Power ...

Acid, and alkali ,wastewater Acid, and alkali ,wastewater, is mainly produced by regeneration of ion exchange demineralization equipment of boiler make-up water treatment system, ... The key to the ,quality, of effluent water is the size, density and uniformity of fine bubbles.

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Road West, North Branch, Jingkai Road, Puyang City