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Acid wastewater needs air

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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Acid wastewater needs air
Advanced Chemical Technology Inc. :: Cyanade and Heavy ...
Advanced Chemical Technology Inc. :: Cyanade and Heavy ...

Sulfide, precipitation. Soluble metals can also be removed by precipitating them as a ,sulfide, by the addition of ,sodium sulfide, to the solution. This method yields more complete metal removal than hydroxide precipitation but can easily leave toxic sulfides in solution.

Factors Affecting Metal Removal in Mixed Sulfide ...
Factors Affecting Metal Removal in Mixed Sulfide ...

Sulfide, precipitation of nickel and cobalt was investigated in three reactors: batch, seeded fluidized bed with an aqueous ,sulfide, source, and bubble column with a gaseous ,sulfide, source. In terms of...

Remediation of heavy metals in drinking water and ...
Remediation of heavy metals in drinking water and ...

wastewater containing, high concentrations of heavy ... sulfur compounds are ,sodium sulfide, salts (Na 2S and NaSH). Despite their simplicity, they are not recommended for use since they release toxic when pH is ,acidic,, hence presenting great risks in case of accidental release or over-dosages. The best ...

Sources and Treatment of Wastewater in the Nonferrous ...
Sources and Treatment of Wastewater in the Nonferrous ...

Industrial Sources of ,Acidic Wastewater Containing, Metal 18 6. ... A smelting plant in Sweden has installed a ,sodium sulfide wastewater, treatment facility which will recycle recovered sludge back to its ,copper, roasters for ... Flotation is the step where the ,copper,-,containing, particles are actually separated from the gangue or country ...

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Road West, North Branch, Jingkai Road, Puyang City