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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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Research on treatment of wastewater containing heavy metal ...
Research on treatment of wastewater containing heavy metal ...

1/2/2018, · This paper introduced the working principle of MFC, the classification of cathode, and the research progress on the ,treatment, of ,wastewater containing, Cr(VI), Cu(II), Ag(I), Mn(II) and Cd(II) by MFC. The study found that different cathode, different heavy metals anddifferent hybrid systems would affect the performance of the system and removal effect for heavy metal in MFC.

Zinc and Copper Recovery from Smelter Waste Stream Case Study
Zinc and Copper Recovery from Smelter Waste Stream Case Study

One of the issues facing the smelter is the lack of a cost-effective and robust ,process, to recover zinc from the ,acidic process, waste stream. As such, significant amounts of zinc-,containing wastewater, are neutralized with lime, resulting in not only the loss of zinc metal …

Printed Circuit Board Recycling Methods
Printed Circuit Board Recycling Methods

wastewater treatment, sludge ,containing copper,, ,copper, sulfate PTH solution, ,copper, rack stripping solution and tin/lead spent stripping solution. Table 1: Amount of waste from multilayer printed circuit board manufacturing ,process, item Waste Characterization in Taiwan kg/m2 of PCB 1 Waste board 2Hazardous 0.01~0.3kg/m

Research on treatment of wastewater containing heavy metal ...
Research on treatment of wastewater containing heavy metal ...

1/2/2018, · This paper introduced the working principle of MFC, the classification of cathode, and the research progress on the ,treatment, of ,wastewater containing, Cr(VI), Cu(II), Ag(I), Mn(II) and Cd(II) by MFC. The study found that different cathode, different heavy metals anddifferent hybrid systems would affect the performance of the system and removal effect for heavy metal in MFC.

Review of the Impact on Water Quality and Treatment ...
Review of the Impact on Water Quality and Treatment ...

15/3/2016, · This cost-effective ,process, was developed in the early 1990s for the ,treatment, of wastes ,containing, high concentrations of cyanide (100,000 mg/L). Thermal ,reduction, reduces cyanide concentration to approximately 25 mg/L, which can be further oxidised by conventional methods such as ozone or hydrogen peroxide to environmentally permissible levels.

Decomplexation of electroplating wastewater by ozone-based ...
Decomplexation of electroplating wastewater by ozone-based ...

The synthetic ,wastewater,, ,containing, an equal molar ratio of CuSO 4 ·5H 2 O and complexing reagents (EDTA-Na 2 or sodium citrate), was prepared by mixing the two solutions. The solution was left in the dark for 24 hours to ensure complete complexation.

Recovery and Concentration of Precious Metals from Strong ...
Recovery and Concentration of Precious Metals from Strong ...

Results showed that the recovery of Platinum (Pt) in the ,reduction process, was improved by adding deammoniation step. Finally, precious metals are concentrated in the crude ,copper, metal by fusion ,process,. The recovery of Au, Ag, Pd was more than 91%, and that of Pt was about 71%.

Biosorption Process for Treatment of Electroplating ...
Biosorption Process for Treatment of Electroplating ...

Brown seaweed Ecklonia biomass was used for the treatment of electroplating wastewater that contains chromium and zinc ions. Batch experiments showed that Cr(VI) was removed from the wastewater through reduction to Cr(III) by contact with the biomass, whereas Cr(III) and Zn(II) were removed through adsorption to the binding sites of the biomass.

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

wastewater treatment, systems: Processes and applications ... ,wastewater containing, high concentrations of heavy metals to receiving water bodies has serious adverse ... is ,acidic,, hence presenting great risks in case of accidental release or over-dosages.

Electroplating Wastewater Treatment_Method
Electroplating Wastewater Treatment_Method

29/4/2018, · ,Electroplating wastewater treatment, General comprehensive surface ,treatment, companies, the company has chemical oxidation, anodizing, galvanized, galvanized nickel alloy, chrome plating, ,copper, plating, gold plating, nickel plating, silver plating and other plating species, the resulting ,wastewater, is very messy.

TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER …
TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER …

Treatment Process,. According to an aspect of an embodiment of the present invention as shown in FIG. 1, there is provided a continuous ,process, for treating ,wastewater, using one to four chemical blends. The ,process, starts with an influent tank 10, which collects ,wastewater, and feeds the ,wastewater, into line 100 via a sump pump 11.

Zinc and Copper Recovery from Smelter Waste Stream Case Study
Zinc and Copper Recovery from Smelter Waste Stream Case Study

One of the issues facing the smelter is the lack of a cost-effective and robust ,process, to recover zinc from the ,acidic process, waste stream. As such, significant amounts of zinc-,containing wastewater, are neutralized with lime, resulting in not only the loss of zinc metal but …

Treatment of Arsenic in copper smelting
Treatment of Arsenic in copper smelting

Features of As ,treatment, at Fangyuan. 1. Use the hazardous wastes generated from ,copper, smelting ,process, to produce arsenic trioxide which is the basic raw materials for arsenic chemicals; 2. Use the hazardous wastes ,containing, As to produce arsenic trioxide while other valuable elements such as Cu, Zn and Pb, etc are recovered; 3.

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

Generally, alkaline mercury-,containing wastewater, is usually treated by chemical coacervation or sulfide precipitation; ,acidic, mercury-,containing wastewater, can be treated by metal ,reduction,; low-concentration mercury-,containing wastewater, can be treated by activated carbon adsorption, chemical coacervation or activated sludge; organic mercury ,wastewater, is difficult to treat and is usually ...

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

wastewater treatment, systems: Processes and applications ... ,wastewater containing, high concentrations of heavy metals to receiving water bodies has serious adverse ... is ,acidic,, hence presenting great risks in case of accidental release or over-dosages.

Optimization of Electrochemical Copper Recovery Process ...
Optimization of Electrochemical Copper Recovery Process ...

copper, sulphate bath of pH 3 ,containing, 0.1M NaCl. Literature on ,copper, electrodeposition in sulphuric acid medium shows that the ,reduction, of ,copper, in the presence of chloride ions occurs in two stages [14,15,17,18,19] presented by two cathodic peaks which are more or less separated in the

Leaching in Metallurgy and Metal Recovery
Leaching in Metallurgy and Metal Recovery

The metal ,containing, solid, such as concentrate, ore, residue, or slag, often undergoes size ,reduction, via crushing and grinding prior to ,leaching,. One example of a ,leaching process, that uses vat ,leaching, is gold cyanidation, the ,process, of extracting gold from low-grade ores.

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