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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 press machine
Wastewater Alkalinity - How to Determine Alkalinity in 3 ...
Wastewater Alkalinity - How to Determine Alkalinity in 3 ...

Wastewater can become, alkaline, if it contains substances like Silicate, Borate, Phosphate, OH, CO3, HCO3 along with some other types of bases. During titration the two end points are used to estimate the levels of wastewater alkalinity.

Comprehensive utilization of acidic wastewater from 33 ...
Comprehensive utilization of acidic wastewater from 33 ...

A novel purification method enabled the waste sulfuric acid to be reused repetitively for four or five times in the hydrazobenzene–benzidine transformation step, resulting in a 75% reduction in the consumption of sulfuric acid, minimization of ,wastewater, discharge and significant economic, environmental and social benefits. 2 EXPERIMENTAL 2.1 Experimental methods The ,acidic wastewater,, provided by the DCB …

Alkaline Wastewater (Water and Wastewater) Articles
Alkaline Wastewater (Water and Wastewater) Articles

Find ,alkaline wastewater, (water and ,wastewater,) articles , the world’s largest environmental industry marketplace and information resource.

Comprehensive utilization of acidic wastewater from 33 ...
Comprehensive utilization of acidic wastewater from 33 ...

Comprehensive, utilization of ,acidic wastewater, from 3,3′‐dichlorobenzidine hydrochloride manufacture October 2001 Journal of Chemical Technology & Biotechnology 76(10):1085 - 1090

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Road West, North Branch, Jingkai Road, Puyang City