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Reinjection treatment system of 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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Reinjection treatment system of fracturing flowback fluid
Removal of chromium( vi ) from polluted wastewater by ...
Removal of chromium( vi ) from polluted wastewater by ...

All the chemicals used in the study were used without further purification unless otherwise stated. Industrial ,wastewater, sample (82.21 mg L −1 Cr(VI), pH = ,2,.0, temperature: 318.15 K, current density: 12–20 A dm −,2, and H ,2 SO, 4: 8.05 mg L −1) ,containing, Cr(VI) ions was obtained from a valve factory in the organized industrial zone in ...

SOLUTION FOR WASTEWATER PROBLEM RELATED TO …
SOLUTION FOR WASTEWATER PROBLEM RELATED TO …

the ,wastewater, shows a considerable decrease in impurities. Only 1.9 parts of SO2 are required to reduce one part of hexavalent ,chromium, as contrasted with 16 parts of copper but the effluent contained sulphites and would not be suitable for discharge without further treatment. Treatment with sulphuric ,acid

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces copper-,containing wastewater,, sulfuric ,acid, mist. (10) Soldermask ... ,so, that the ,wastewater, can reach the discharge standard, ... and the cyanide-,containing wastewater, and the ,chromium,-,containing wastewater, in the circuit board are often subjected to a redox method. ,2,.

An overview of chromium removal techniques from tannery ...
An overview of chromium removal techniques from tannery ...

9/8/2020, · They recovered almost 30% Cr using concentrated sulphuric ,acid, (H ,2 SO, 4) at about pH ,2,.8, and this Cr could be mixed with 70% fresh basic ,chromium, sufate (Minas et al. 2017). Abbas et al. investigated four precipitating agents such as NaOH, [Ca(OH) ,2,], MgO and Al ,2, (,SO, 4) 3 ·18H ,2, O for the reduction of Cr from

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