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Research on advanced treatment technology of oilfield fracturing flowback fluid

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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Research on advanced treatment technology of oilfield fracturing flowback fluid
Difference Between BOD and COD | Definition Test Method ...
Difference Between BOD and COD | Definition Test Method ...

7/6/2017, · ,COD, measurements are commonly made with the samples of ,wastewater, or natural water, which are contaminated by domestic and industrial wastes. A closed water sample is incubated with a strong oxidant like potassium dichromate (K 2 Cr 2 O 7 ) in combination with boiling sulfuric ,acid, (H 2 SO 4 ) under a specific temperature for a specified period of time.

Biological Treatment of Petrochemical Wastewater | IntechOpen
Biological Treatment of Petrochemical Wastewater | IntechOpen

9/4/2018, · Coagulation-flocculation for specific petrochemical ,wastewater, treatment, such as purified terephthalic ,acid, (PTA) production ,wastewater,; the ,wastewater, contains aromatic compounds such as p-toluic ,acid,, benzoic ,acid,, 4-carboxybenzaldehyde, phthalic ,acid, (PA), and terephthalic ,acid, (TA), etc. Ferric chloride is found to be the most effective coagulant with ,COD, removal efficiency at 75.5% at ...

The effect of glycerol on readily biodegradable chemical ...
The effect of glycerol on readily biodegradable chemical ...

The ,COD, of ,wastewater, with limited VFA (e.g., 10 mg ,COD,/L) increased up to 2,502 mg ,COD,/L where propionic ,acid, (2,468 mg ,COD,/L) exists as the primary end product with a small quantity of acetic ,acid, (34 mg ,COD,/L). Propionic ,acid, was the main VFA component fermented from the glycerol addition.

Refined soybean oil wastewater treatment and its ...
Refined soybean oil wastewater treatment and its ...

1/11/2018, · Thus, substrate metabolism was studied by analyzing the changing trends in the ,COD, and oil, glucose, and fatty ,acid, contents during ,wastewater, treatment. As shown in Fig. 1a, the ,COD, and oil content decreased rapidly from 0 to 24 h, and then the degradation rate gradually decreased to …

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