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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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Water Heater Repair Near me
Enriched Co-Treatment of Pharmaceutical and Acidic Metal ...
Enriched Co-Treatment of Pharmaceutical and Acidic Metal ...

The cotreatment in FBR could be used to treat pharmaceutical wastewater containing nonsteroid inflammatory compounds and COD reduction of over 90%, suggesting biomass had acclimated to the compounds. The overall treatment effectiveness for AMD was found to be at an average of 92.5%.

REMOVAL OF COD FROM OIL RECOVERY INDUSTRY WASTEWATER …
REMOVAL OF COD FROM OIL RECOVERY INDUSTRY WASTEWATER …

concentrations. In the first series, three pollution strengths of ,wastewater, such as 5, 20 and 100 % were prepared for ,COD, removal at the fixed ,COD,/H 2O 2 ratio of 1/2. In the second series, hydrogen peroxide was added in ,COD,/ H 2O 2 weight ratios of 1:1, 1:2 and 1:4. The initial ,COD, concentration was kept constant at 1050 mg l-1.

Decolourization and cod reduction of textile wastewater by ...
Decolourization and cod reduction of textile wastewater by ...

Decolourization and ,cod reduction, of textile ,wastewater, by ozonation in combination with biological treatment 3142 chemical method is used to oxidize ,organic, materials using oxidizing agents such as ozone, H 2 O 2, UV light or combinations of such oxidants, which are known as Advanced Oxidation Processes (AOPs).

Treatment of oilfield wastewater by combined process of ...
Treatment of oilfield wastewater by combined process of ...

Coagulation and flocculation process can reduce the fraction of recalcitrant organic matter present in wastewater, particularly humic substances, which can be verified by COD reduction. Meanwhile, the coagulation results were closely related with coagulation conditions ( Pliego et al. 2014 ) such as dosage of flocculent, stirring time and pH, etc.

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