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Treatment 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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Treatment of oilfield fracturing flowback fluid
Treatment of Wastewaters from Offset Printing Industry by ...
Treatment of Wastewaters from Offset Printing Industry by ...

The major pollutants found in offset printing waste are mainly characterized as volatile organic carbon (VOC), which is extremely toxic to the environment and difficult to be treated by the conventional process [2]. Investigation on chemical characteristics of printing ink wastewater revealed that the BOD 5

Textile Wastewater Treatment: A Critical Review
Textile Wastewater Treatment: A Critical Review

organic compounds, as well as ,acidic, and alkaline contaminants, from industrial establishments on the general public are widely accepted. Therefore, in terms of ... For ,printing, and dyeing ,wastewater,, the first consideration is the organic pollutants, color and heavy metal ions.

Flocculation as a Treatment Method for Printing Ink Wastewater
Flocculation as a Treatment Method for Printing Ink Wastewater

water-based or mixed ,printing, ink wastes. Because this type of ,wastewater, is highly colored by the pigments, which are visible even at very low concentrations, and is highly contaminated with organic materials, this ,wastewater, cannot be discharged to a ,waste water, system without treatment. In the present work, simulated ,wastewater, of two types of real

Cytotoxicity reduction of wastewater treated by advanced ...
Cytotoxicity reduction of wastewater treated by advanced ...

Textile ,printing wastewater, was first filtered to remove contamination like cellulose or other insoluble ... alcohol (1:3) solution. Afterword, under ,acidic, conditions of 1 N HCl and at 60ºC the root tips were hydrolyzed. Roots count, roots length and their average was then measured. For shrimp lethality test, the procedure has been reported

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