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oil well fracturing flow-back fluids treatment techniques associated

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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oil well fracturing flow-back fluids treatment techniques associated
BAOWU OPEN INNOVATION
BAOWU OPEN INNOVATION

A high-salts and high-,ammonia acidic wastewater, has the pH of 3~5, conductivity of 100000~200000μs/cm and ,ammonia, of 500~5000mg/L. In addition, it also contains some trace heavy metal ions such as Pb, Hg and Cd. This type of ,wastewater, is high-salts, high-,ammonia wastewater, which needs to be recycled.

Effects of Ammonia Stripping and Other Physico-Chemical ...
Effects of Ammonia Stripping and Other Physico-Chemical ...

dissolved in a liquid through a mass transfer. In the case of SW, which is the liquid phase, ammonia is used as gas. In the AS process, the wastewater is aerated after mixing with alkali at pH over 8.5, which allows for easier ammonia stripping. Ammonia is then recovered by an adsorbing unit, filled with a sulfuric acid solution, as ammonium sulphate.

pH of Water - Environmental Measurement Systems
pH of Water - Environmental Measurement Systems

These chemicals can come from agricultural runoff, ,wastewater, discharge or industrial runoff. Mining operations (particularly coal) produce acid runoff and ,acidic, groundwater seepage if the surrounding soil is poorly buffered ²². ,Wastewater, discharge that contains detergents and soap-based products can cause a water source to become too basic.

Utilization of municipal wastewater for cooling in ...
Utilization of municipal wastewater for cooling in ...

It was also found that stripping of ,ammonia, and carbon dioxide in the cooling tower can influence the cooling loop pH significantly. The effects of the NH3 mass transfer coefficient on cooling loop pH appear to be more significant at lower values (e.g., kNH3 < 4×10-3 m/s) when the makeup water alkalinity is low (e.g., <90 mg/L as CaCO3).

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