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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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Treatment and Management of Industrial Dye Wastewater for ...
Treatment and Management of Industrial Dye Wastewater for ...

The chemical interaction of ,ferrous, iron Fe(II) with hydrogen peroxide (H 2 O 2) forms a reduced ferric (III) ,ion,, hydrogen ,ion, (OK), and a hydroxide radical (*OH). The available hydroxide radical forms an additional Fe(III) ,ion, when combined with available ,ferrous, iron (II).

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

Acid, pickling ,wastewater, (waste ,acid,) refers to a kind of liquid waste produced in the process of steel rolling, metal surface treatment, electronic component manufacturing, etc., which is listed in the national list of hazardous wastes. According to the different chemical composition, ,acid, pickling ,wastewater, (waste ,acid,) can be divided into three types: hydrochloric ,acid,… Read more

Ferric chloride or sulphate vs. ferrous chloride/sulphate
Ferric chloride or sulphate vs. ferrous chloride/sulphate

2/3/2009, · If ,ferrous, chloride is added at a fairly low pH, and then, the pH is raised to about 8, three things happen: 1) ,Ferrous ion, becomes a very powerful reducing agent. In waste treatment, this is your friend. 2) Some of the ,ferrous ion, is oxidized to ferric ,ion,, by atmospheric O2.

Technology to detoxify cyanogen|Technology for waste water ...
Technology to detoxify cyanogen|Technology for waste water ...

So by using the nature that Fe 2 [Fe(CN) 6] is a poorly-solublecompound cyanogen/cyanide is precipitated as insoluble compound by feeding ,ferrous ion, Recently Prussian blue attracts attention as fixing agent for radioactive cesium.We made an announcement of an adsorption treatment system for cesium containing ,wastewater, on April 26,2011 shortly after the nuclear accident.

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