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Oil and Gas Field Services Companies

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 and Gas Field Services Companies
Simultaneous removal of Ni(II) and fluoride from a real ...
Simultaneous removal of Ni(II) and fluoride from a real ...

At present, removal of high concentrations of SO 4 2− and Cl − remains a challenge to ,wastewater treatment, plants, but is not considered as a component of major concern for FGD ,wastewater, (Huang et al. 2013). However, the large amount of SO 4 2− − 2, HClO, OCl −) derived from Equations – when chloride is present in the solution and the anode potential is sufficiently high

Fifteen industrial wastewater treatment processes | LCDRI CN
Fifteen industrial wastewater treatment processes | LCDRI CN

The ,wastewater treatment, system is mainly composed of ,waste water, tank, triple tank, clarification tank, mud pump, water outlet tank, clean water pump, fan and dewatering machine. In addition to a large amount of Cl-, Mg2+, the impurities in the desulfurization ,wastewater, include: ,fluoride,, nitrite, etc.; heavy metal ions such as Cu2+, Hg2+, etc.; insoluble CaSO4 and fine dust.

Treatment of Industrial Effluents - Environmental Pollution
Treatment of Industrial Effluents - Environmental Pollution

Large quantities of ,fluoride, and phosphate bearing ,acidic, wastewaters are released from phosphatic fertilizer plants. Double lime ,treatment, can be established by EPA as the best practicable technology and best available technology. A two-stage ,treatment process, using chalk (CaCO 3) and lime (CaO) is used.

US4734200A - Process for removal of fluoride and ...
US4734200A - Process for removal of fluoride and ...

A process for treating acidic process waste water, containing SiF, 6 2- is disclosed. The process is carried out by contacting the waste water with a strong base ion exchange resin and loading SiF 6...

Fifteen industrial wastewater treatment processes | LCDRI CN
Fifteen industrial wastewater treatment processes | LCDRI CN

The ,wastewater, treatment system is mainly composed of ,waste water, tank, triple tank, clarification tank, mud pump, water outlet tank, clean water pump, fan and dewatering machine. In addition to a large amount of Cl-, Mg2+, the impurities in the desulfurization ,wastewater, include: ,fluoride,, nitrite, etc.; heavy metal ions such as Cu2+, Hg2+, etc.; insoluble CaSO4 and fine dust.

Process for removal of fluoride and phosphorus-type ...
Process for removal of fluoride and phosphorus-type ...

A process for, treating acidic process waste water containing, SiF 6 2 - is disclosed. The process is carried out by contacting the, waste water with, a strong base ion exchange resin a Process for removal of fluoride and phosphorus-type contaminants from, acidic wastewater, - …

Treatment of Industrial Effluents - Environmental Pollution
Treatment of Industrial Effluents - Environmental Pollution

17/9/2016, · Large quantities of ,fluoride, and phosphate bearing ,acidic, wastewaters are released from phosphatic fertilizer plants. Double lime treatment can be established by EPA as the best practicable technology and best available technology. A two-stage treatment ,process, …

Selective fluoride and ammonia removal by chromatographic ...
Selective fluoride and ammonia removal by chromatographic ...

The fourth column removes only, hydrofluoric, acid (HF). This process facilitates the treatment of a concentrated stream as a batch, containing only fluoride compounds, eliminating the extra sludge generated by sulfates and overdosing of calcium hydroxide (Ca (OH) 2) due to continuous operation.

A Novel Recovery Method for Treating Wastewater Containing ...
A Novel Recovery Method for Treating Wastewater Containing ...

Abstract and Figures A new treatment method for wastewater containing concentrated fluoride and fluoroborate ions by, hydrothermal, treatment were developed. The treatment is …

15 types of industrial wastewater treatment processes ...
15 types of industrial wastewater treatment processes ...

Pesticide wastewater treatment methods include activated carbon adsorption method, wet oxidation method, solvent extraction method, distillation method and activated sludge method. However, the development of new pesticides with high efficiency, low toxicity and low residue is the development direction of pesticides. 8.Cyanide-containing wastewater

Alkaline Wastewater - an overview | ScienceDirect Topics
Alkaline Wastewater - an overview | ScienceDirect Topics

The treatment of this, wastewater, is to neutralize by the addition of waste acid or, acidic wastewater, to pH 5, and then, lime is added to precipitate fluoride. The reactions are as follows: (8.12) 2HF + …

Electroflotation for Treatment of Industrial Wastewaters ...
Electroflotation for Treatment of Industrial Wastewaters ...

Electroflotation is a ,wastewater treatment process, defined as the separation of suspended particles from water using gas bubbles generated during electrolysis of water. The present study intends to provide a comprehensive review of applications of electroflotation ,process, in ,treatment, …

Fluoride removal from industrial wastewater using ...
Fluoride removal from industrial wastewater using ...

15/7/2010, · The combined, electrocoagulation, and, electroflotation process, is successfully applied in treating wastewater containing fluoride by Shen et al.. The EC cell was a bipolar electrode having three aluminum electrodes. They reported that optimal retention time is 20 min. Moreover, higher charge loading resulted in good fluoride removal efficiency.

Selective fluoride and ammonia removal by chromatographic ...
Selective fluoride and ammonia removal by chromatographic ...

A process for treating a wastewater stream is also provided which includes removing substantially all fluoride ions contained in the waste water stream, and comprises exchanging hydrogen ions in a strong acid cation resin containing hydrogen ions with aluminum ions by passing a solution of aluminum salt through the strong acid cation resin, rinsing the strong acid cation resin with water, and removing …

Electroflotation for Treatment of Industrial Wastewaters ...
Electroflotation for Treatment of Industrial Wastewaters ...

14/1/2019, · Electroflotation is a ,wastewater, treatment ,process, defined as the separation of suspended particles from water using gas bubbles generated during electrolysis of water. The present study intends to provide a comprehensive review of applications of electroflotation ,process, in …

A Limestone Reactor for Fluoride Removal from Wastewaters ...
A Limestone Reactor for Fluoride Removal from Wastewaters ...

30/6/2000, · Abstract. A two-column limestone reactor has been designed to reduce fluoride concentrations from wastewaters to below the maximum contaminant level (MCL limit) of 4 mg/L. The reactor functions by forcing calcite (CaCO 3) to dissolve and fluorite (CaF 2) …

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