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mac valves inc

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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mac valves inc
EP1651573B1 - Method for treatment of acidic wastewater ...
EP1651573B1 - Method for treatment of acidic wastewater ...

EP1651573B1 EP04757322.5A EP04757322A EP1651573B1 EP 1651573 B1 EP1651573 B1 EP 1651573B1 EP 04757322 A EP04757322 A EP 04757322A EP 1651573 B1 EP1651573 B1 EP 1651573B1 Authority EP European Patent Office Prior art keywords ,wastewater, reverse osmosis species calcium effluent Prior art date 2003-07-24 Legal status (The legal status is an assumption and is not a legal …

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

Industrial wastewater treatment, describes the processes used for treating ,wastewater, that is produced by industries as an undesirable by-product. After treatment, the treated industrial ,wastewater, (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment.. Most industries produce some ,wastewater,.Recent trends have been to minimize such production or ...

What Is the Best Method for Wastewater Treatment? - AOS ...
What Is the Best Method for Wastewater Treatment? - AOS ...

For industrial users, nation pollutant ,discharge, elimination system (NPDES) sets ,wastewater, pretreatment standards that are more strict. 2. ... Lime is sometimes used when treating ,acidic, water. ... It’s critical to effectively ,treat wastewater, so it can be reused or safely put back into the environment.

How to Treat Wastewater from Iron and Steel Industry ...
How to Treat Wastewater from Iron and Steel Industry ...

The essential feature of this joint treatment is a combination of the alkaline tailing waste with the acidic leaching waste to form a neutral iron-free effluent for discharge. Two tailing waste sources are used: sand and slime sediment formed from lagooning tailing wastes in previous years and waste-water from currently used tailing disposal lagoons; both contain residual lime.

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