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Oil and Gas Business

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 Business
Reclamation of acid dye bath wastewater: Effect of pH on ...
Reclamation of acid dye bath wastewater: Effect of pH on ...

15/9/2006, · The pH of the ,wastewater, is acidic due to the acetic ,acid, (CH 3 CO 2 H) content, which may be a factor affecting the membrane surface charge and hence its rejection performance. Acetic ,acid, is one of the COD causing compounds in the ,acid, dye bath wastewaters and has a small molecular weight (60 Da) as compared to the MWCO of most NF membranes.

Wastewater treatment and reclamation: A review of pulp and ...
Wastewater treatment and reclamation: A review of pulp and ...

The 95.7% of phenolics, 98.6% fatty acids, 99.8% resin acids, and the 100% of phytosterols were degraded in 120 min. Moreover, acetic ,acid concentration, significantly increased after this pre-treatment, thus making the pre-treated sludge more suitable for anaerobic digestion. Electro-oxidation

KR0149599B1 - Industrial wastewater treatment method using ...
KR0149599B1 - Industrial wastewater treatment method using ...

The solution is stirred for a few minutes and then coagulated or precipitated, or the precipitated solution is filtered to obtain color, total phosphorus, total nitrogen, turbidity, Industrial ,wastewater, treatment method using ,acid wastewater neutralization, material, characterized in that to reduce suspended solids, organic matters and the like.

Formula Sheet for all Wastewater Operator Exams Revised 8 ...
Formula Sheet for all Wastewater Operator Exams Revised 8 ...

Formula Sheet for all ,Wastewater, Operator Exams Revised 8/15 F001 ... Influent ,concentration, Influent ,concentration, Effluent ,concentration, ... Stock ,acid, normality F091 Sludge flow, MGD = (Thickener loading, lbs/day/sf) x (Surface area, sf) (8.34) x (10,000) x (% solids)

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Road West, North Branch, Jingkai Road, Puyang City