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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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oil gas journal
The Recovery of Phosphorus from Acidic Ultra-High ...
The Recovery of Phosphorus from Acidic Ultra-High ...

In this study, struvite crystallization method has been used for treatment of high phosphorus ,wastewater,. The new combination agents of Mg5(CO3)4(OH)2·4H2O and NH4Cl were used as the precipitant. The effects of initial pH, n(Mg):n(P), n(N):n(P), and reaction time on the removal of total phosphorus (TP) in ,wastewater, were investigated.

What Makes Something Acidic or Alkaline? - Medical News
What Makes Something Acidic or Alkaline? - Medical News

26/2/2019, · Understanding acids and alkalis. In pure water, a small portion of the molecules lose one hydrogen from the H 2 O structure, in a process called dissociation. The water thus contains a small ...

(PDF) Medical Wastewater Characterization in the Gaza ...
(PDF) Medical Wastewater Characterization in the Gaza ...

wastewater, pollution i.e. TSS, BOD, and COD accounted for 3008, 1150, and 5350 mg/L, respectively, while the highest TKN (117 mg/L) was from the surgery operation room. Heavy metals such as Cd, Zn ...

Removal of urotropine from industrial wastewater by acidic ...
Removal of urotropine from industrial wastewater by acidic ...

The industrial wastewater produced by urotropine plants is considered as a major environmental polluting factor and hence its treatment is required. In this work, strongly acidic cation exchange resins including C100H (Purolite), Amberlite IR120 and Amberlyst 15W were used for removing of urotropine from wastewater.

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