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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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oil and gas research
Tertiary treatment of wastewater by electro-coagulation ...
Tertiary treatment of wastewater by electro-coagulation ...

Tertiary treatment of ,wastewater, by electro-coagulation, ... were introduced into corresponding digestion tube ,containing, a reagent such as potassium ,dichromate,, sulfuric ,acid,, silver ... ,electrolysis, time at a current intensity (I) equal to 2A is shown in Figure 1.

Electrochemical Degradation of Reactive Yellow 160 Dye in ...
Electrochemical Degradation of Reactive Yellow 160 Dye in ...

Standard solutions of potassium ,dichromate,, sulfuric ,acid, reagent with silver sulfate, and ... 3.2.5. Effect of the ,Electrolysis, Time. To assess the effect of ,electrolysis, ... "On the performances oflead dioxide and boron-doped diamond electrodes in the anodic oxidation of simulated ,wastewater containing, the Reactive Orange 16 dye ...

Membrane-separated electrochemical latrine wastewater ...
Membrane-separated electrochemical latrine wastewater ...

Fig. 2 a) COD reduction and b) profiles of total chlorine concentration as a function of ,electrolysis, time. c) NH 4 + oxidation in ,wastewater, during ,electrolysis, and d) the recovery of NH 4 + in RS-A. Tests marked with “M” were performed in CEM separated ,electrolysis,. All the ,electrolysis, tests were conducted at 5 mA cm −2, except for STI (M)* and STI (M)** which were operated at 10 and ...

CHEMICAL SAFETY REPORT - ECHA
CHEMICAL SAFETY REPORT - ECHA

The sodium ,dichromate containing, liquor is recycled to the ,electrolysis, step. The process is carried out in a closed loop system with very small quantities of sodium ,dichromate, used per tonne of sodium chlorate produced (10-150 g SD/t sodium chlorate; EC, 2007). The only losses of chromium from the process are due to periodic

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