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Neutralization of acid wastewater containing sulfuric acid

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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Neutralization of acid wastewater containing sulfuric acid
Removal of chromium( vi ) from polluted wastewater by ...
Removal of chromium( vi ) from polluted wastewater by ...

All the chemicals used in the study were used without further purification unless otherwise stated. Industrial ,wastewater, sample (82.21 mg L −1 Cr(VI), pH = ,2,.0, temperature: 318.15 K, current density: 12–20 A dm −,2, and H ,2 SO, 4: 8.05 mg L −1) ,containing, Cr(VI) ions was obtained from a valve factory in the organized industrial zone in ...

Polyacrylamide for steel wastewater
Polyacrylamide for steel wastewater

It mainly includes three types of ,wastewater,: oily and emulsion ,wastewater,, ,acid,-base ,wastewater,, and ,chromium,-,containing wastewater,. There are many types of pollutants in cold rolling ,wastewater,, complex components, and large changes in water volume and composition, which bring great inconvenience to ,wastewater, treatment.

Determination of Cr(VI) in Water Wastewater and Solid ...
Determination of Cr(VI) in Water Wastewater and Solid ...

methanol. Add to about 500 mL of water ,containing, 28 mL of 98% sulfuric ,acid,. Dilute, with stirring, to 1 L in a volumetric flask. Transfer the solution to the pressurized reagent container. The solution will be stable for several days, but must be prepared only as it is used, one liter at a time. ,Chromium, Stock • …

Removal of Chromium from Industrial Wastewater by ...
Removal of Chromium from Industrial Wastewater by ...

Removal ,of Chromium from Industrial Wastewater by Adsorption Using, Coffee Husk Dessalew Berihun* ... ,containing, concentration of 1000 mg/l was prepared by dissolving ,2,.829 g of potassium dichromate, K ,2, Cr ,2, O 7 analytical grade, in 1000 ml of deionized water. The stock solution was ... ,2 SO, …

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