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A treatment method for fracturing flowback fluid in oil and gas fields

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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A treatment method for fracturing flowback fluid in oil and gas fields
Cavitation-Dispersion Method for Copper Cementation from ...
Cavitation-Dispersion Method for Copper Cementation from ...

method for recovering valuable metallic ,copper, from industrial ,wastewater, using Fe0 powders is reported. A high-speed mixer-disperser (HSMD) capable of providing a cavitation effect was used for the rapid intake, dispersion, and mixing of Fe0 powder in an ,acidic wastewater, solution (pH ˇ2.9) ,containing copper ions, mainly in the form of CuSO4.

Selective Sulphide Precipitation of Copper Nickel and ...
Selective Sulphide Precipitation of Copper Nickel and ...

wastewater, containing 10 g/L Cu2+, 0.3 g/L Ni2+ and 3 g/L Zn2+ ions, were treated at pH 2.3 and copper was precipitated as CuS with almost 100% of efficiency. In pH 5.3, the residual nickel and zinc ion concentration in the solution was decreased to 4 mg/L and 6 mg/L with the 44% and 52% of precipitation efficiencies, respectively. 1. Introduction

Removing Heavy Metals From Wastewater
Removing Heavy Metals From Wastewater

new pH value, for example, most of the ,zinc, forms ,zinc, hydroxide and precipitates out of solution. The dissolved ,zinc concentration, is obtained from the solubility line at this pH (i.e., 0.3 mg/L). This is the theoretical amount of ,zinc, that would be in the discharged ,wastewater, after this treatment. The difference of 3.7 mg/L

Waste Material Adsorbents for Zinc Removal from Wastewater ...
Waste Material Adsorbents for Zinc Removal from Wastewater ...

However, high ,zinc, can cause eminent health problems, such as stomach cramps, vomiting, skin irritations, anemia, and nausea [].Various methods are available to remove and isolate these heavy metals from water and ,wastewater, such as ion-exchange, chemical precipitation, membrane filtration, adsorption, and electrochemical treatment technologies [].

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