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Shale Oil

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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Shale Oil
Method for removing metals from acid mine drainage ...
Method for removing metals from acid mine drainage ...

[0025] Under agitation, 0.352 g of hydrated lime was added to one liter of Sample #2 acidic ,mine wastewater,. After about 15 minutes the ,pH, had increased from 3.1 to about 5.7. 0.041 g of soda ash was added, which raised the ,pH, of the water to 6.2. Then 0.031 g sodium lignosulfonates was rapidly dissolved, which increased the ,pH, of the water to 6.3.

SUPPLEMENTARY MATERIALS Article The Use of Mining Waste ...
SUPPLEMENTARY MATERIALS Article The Use of Mining Waste ...

of ,Acid, and Alkaline ,Mine Wastewater, Jacek Retka 1,*, Grzegorz Rzepa 2, Tomasz Bajda 2 and Lukasz Drewniak 1 1 Institute of Microbiology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02‐096 Warsaw, Poland; ldrewniak@biol.uw.edu.pl 2 Faculty of Geology, Geophysics and Environmental Protection, Department of Mineralogy, Petrography and

Ferric salts reduce arsenic in mine effluent by combining ...
Ferric salts reduce arsenic in mine effluent by combining ...

Mine, tailings often contain the same toxic heavy metals and ,acid,-forming minerals that waste rock does, ... Dissolved arsenic concentrations of ,0.5, mg/L or less can be obtained by precipitation with ferric iron. ... ,Wastewater pH, can be within 4.5 to 9.0 for treatment, but has an optimum ,pH, range from 6.5 to 8.0.

Mining Waste Treatment Technology Selection—Technology ...
Mining Waste Treatment Technology Selection—Technology ...

1.5 Σ mmole Al +3, Fe +3 + ,0.5, (1000 x 10>-,pH,) The typical or “rule of thumb” design value that has been generally cited in the literature is 0.3 moles/m 3 /day. Therefore, the metal loading rate should be ≤0.3 moles/m 3 /day for metals to be precipitated as sulfides.

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