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Treatment method of drilling fracturing flowback fluid reuse

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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Treatment method of drilling fracturing flowback fluid reuse
Production of Iron Pigments (Goethite and Haematite) from ...
Production of Iron Pigments (Goethite and Haematite) from ...

The final precipitate was dissolved in nitric ,acid, to achieve a clear ,iron, solution for goethite produc-tion. The steps can be seen in Fig.1. Synthesis and characterization of yellow and red pigments For the production of goethite (FeOOH) (yellow pigment), the ferric precipitated sludge was dis-solved with nitric ,acid, to form the ,iron,-hexa-aqua-

water treatment - reagent and treatments than can be used ...
water treatment - reagent and treatments than can be used ...

sodium carbonate: Na 2 CO 3 + CO 2 + H 2 O → 2NaHCO 3; remineralisation using CO 2 + lime (5a) or CO 2 + calcium carbonate (5b), according to the same reactions as applicable in processes (2) and (4a) ; remineralisation by injecting sodium bicarbonate and a calcium salt (or bicarbonate on its own if there is an adequate TCa level).

Iron Total - Hach
Iron Total - Hach

Iron,, Total DOC316.53.01053 USEPA1 FerroVer® Method2 Method 8008 0.02 to 3.00 mg/L Fe ,Powder, Pillows or AccuVac® Ampuls Scope and application: For water, ,wastewater, and seawater; digestion is required for determining total ,iron,. 1 USEPA approved for reporting ,wastewater, analysis, Federal Register, June 27, 1980; 45 (126:43459).

water treatment - coagulation-flocculation typical reagents
water treatment - coagulation-flocculation typical reagents

Coagulation and, flocculation, reagents are simple or polymerised mineral salts, and organic, natural or artificial polymers. Tables in ain reagents used in water treatment and ain reagents used in water treatment summarise the properties of the commercially available forms of the different reagents. mineral coagulants

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