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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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Wastewater Treatment Methods and Disposal - 1...
Wastewater Treatment Methods and Disposal - 1...

Neutralization, consists of the addition ,of acid, or base to adjust pH levels back to neutrality. Since lime is a base it is sometimes used in the ,neutralization of acid, wastes. Coagulation consists of the addition of a chemical that, through a chemical reaction, forms an insoluble end product that serves to remove substances from the ,wastewater,.

PHYSICAL AND CHEMICAL METHODS OF WASTEWATER TREATMENT ...
PHYSICAL AND CHEMICAL METHODS OF WASTEWATER TREATMENT ...

Neutralization, of acids formed during the hydrolysis ,of acid, coagulants can also occur due to an alkaline reserve of the ,wastewater,: When using mixtures of aluminum sulfate A1 2 (SO 4 ) 3 and ferric chloride FeCl 3 in ratios from 1: 1 to 1: 2, the best coagulation result is achieved than with the separate use of …

Treatment of vegetable oil refinery wastewater by ...
Treatment of vegetable oil refinery wastewater by ...

acid wastewater, (80 - 270 m3.day-1) and process ,wastewater, (570 - 1000 m3.day-1) [9]. The process ,wastewater, is that stream originating from all the factory's process installations and equipment. Figure.1 shows the diagram of VOR processes and the source ,of Acid, and process ,wastewater,.

.Study of refining wastewater pollution: case of vegetable ...
.Study of refining wastewater pollution: case of vegetable ...

The refinery uses chemical and physical ,methods, for the refining of oils (rapeseed, sunflower, soybean, palm, and hydrogenated). On average, the refinery generates 1200 m3 of ,wastewater, daily, which includes ,acid wastewater, (80 - 3270 m ·d-1) and process ,wastewater, (570 - 1000 m3·d-1). The ,acid wastewater, is that stream

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