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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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Biosorption of Cr(VI) by immobilized waste biomass from ...
Biosorption of Cr(VI) by immobilized waste biomass from ...

Therefore, the B. subtilis-,containing, waste biomass from γ-polyglutamic ,acid, production has the potential to absorb ,Cr,(VI) from ,wastewater,, which was investigated in this study.

Research on treatment of wastewater containing heavy metal ...
Research on treatment of wastewater containing heavy metal ...

1/2/2018, · This paper introduced the working principle of MFC, the classification of cathode, and the research progress on the ,treatment, of ,wastewater containing Cr,(VI), Cu(II), Ag(I), Mn(II) and Cd(II) by MFC. The study found that different cathode, different heavy metals anddifferent hybrid systems would affect the performance of the system and removal effect for heavy metal in MFC.

Inorganic Wastewater Treatment | Wastewater Treatment ...
Inorganic Wastewater Treatment | Wastewater Treatment ...

Hexavalnet chromium (,Cr, 6+) in ,wastewater, is reduced to be an insoluble form. 1) Chemicals can be selected corresponding to ,Cr, 6+ concentration. 2) ,Wastewater containing, trivalent chromium (,Cr, 3+) can also be treated. Chromium Waster(,Cr, 6+, ,Cr, 3+ )

Research on Treating Acid Wastewater Containing Heavy Metal
Research on Treating Acid Wastewater Containing Heavy Metal

Chromium mainly exists in ,wastewater, by ,Cr, (III) and ,Cr, (VI). ,Cr, (VI) is easy to accumulate in organisms and water because of its solubility, strong oxidation, toxicity and other characteristics [4]. Chromium- ,containing wastewater treatment, is particularly important and must be treated before discharged.

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