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Harm of acid waste water in coal mine

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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Harm of acid waste water in coal mine
Method for treating flowback water from hydraulic fracturing
Method for treating flowback water from hydraulic fracturing

What is claimed is: 1. A method for treating ,flowback, water from hydraulic ,fracturing,, comprising: selecting at least one facultative organism; introducing the selected at least one facultative organism into the ,flowback, water from hydraulic ,fracturing, to reduce sulfate reducing bacteria; and adding nitrate for increasing the redox potential of the ,flowback, water.

Method of Treating Flowback Fluid from a Well - Noles ...
Method of Treating Flowback Fluid from a Well - Noles ...

We claim: 1. A method of treating ,flow back fluid, from a well completion process wherein the ,flow back fluid, contains water, solids, dissolved solids and oil comprising: a) conveying the ,flow back fluid, via a conduit, b) maintaining the pH level of the ,fluid, back ,fluid, above about 7.5, c) adding an oxidizing agent to the ,flow back fluid, at a pressure greater than atmospheric pressure until the ...

Investigation on Problems of Wastewater from Hydraulic ...
Investigation on Problems of Wastewater from Hydraulic ...

Development of high-efficiency equipment is essential, no matter for ,fracturing flowback fluid, treatment or mine drainage, domestic sewage and seawater as water resource for ,hydraulic fracturing,. In summary, zero emission of wastewater and zero consumption of freshwater should be the ultimate goal of future hydrocarbon resource exploitation.

Green Ferrate(VI) for Multiple Treatments of Fracturing ...
Green Ferrate(VI) for Multiple Treatments of Fracturing ...

Fracturing wastewater is often highly emulsified, viscous, and has a high chemical oxygen demand (COD), which makes it difficult to treat and recycle. Ferrate(VI) is a green oxidant that has a high redox potential and has been adopted for the efficient oxidation of fracturing wastewater to achieve triple effects: demulsification, visbreaking, and COD removal.

EVALUATING CHEMICAL AND ELECTROCOAGULATION FOR THE ...
EVALUATING CHEMICAL AND ELECTROCOAGULATION FOR THE ...

optimized reductions of the ,chemical oxygen demand, (,COD,) and dissolved organic carbon (DOC). Design of experiments was employed to execute 32 experiments on a produced water sample that varied EC process control factors. Additionally, a dose-response curve was generated for CC with doses from 5 – 1,500 mg/L FeCl 3 and AlCl 3 as coagulants. The

Frontiers | Emerging Trends in Biological Treatment of ...
Frontiers | Emerging Trends in Biological Treatment of ...

Denver-Julesburg basin FFB had an order of magnitude higher ,COD, (and DOC) than the PW, but the BAF was able to adapt to this change in feed and achieved similar ,COD, removal at longer retention time (167 h). 16S rRNA gene-based microbial community analysis of filter media and produced water revealed differing dominant groups in aerated filters (Flavobacteria (predominantly genus Fluviicola) and …

Method of Treating Flowback Fluid from a Well
Method of Treating Flowback Fluid from a Well

A method and apparatus for treating ,flow back fluid, from a well after a well completion process is disclosed. The method includes the steps of maintaining the pH of the ,flow back fluid, at a certain level and introducing an oxidizing agent into the ,fluid, flow. The ,flow back fluid, which typically contains at least water, oil and solids is passed through a tubing bundle, an oil/water separator ...

Frontiers | Emerging Trends in Biological Treatment of ...
Frontiers | Emerging Trends in Biological Treatment of ...

Denver-Julesburg basin FFB had an order of magnitude higher ,COD, (and DOC) than the PW, but the BAF was able to adapt to this change in feed and achieved similar ,COD, removal at longer retention time (167 h). 16S rRNA gene-based microbial community analysis of filter media and produced water revealed differing dominant groups in aerated filters (Flavobacteria (predominantly genus Fluviicola) and …

Method of Treating Flowback Fluid from a Well
Method of Treating Flowback Fluid from a Well

A method and apparatus for treating ,flow back fluid, from a well after a well completion process is disclosed. The method includes the steps of maintaining the pH of the ,flow back fluid, at a certain level and introducing an oxidizing agent into the ,fluid, flow. The ,flow back fluid, which typically contains at least water, oil and solids is passed through a tubing bundle, an oil/water separator ...

Factors impacting electrocoagulation treatment of ...
Factors impacting electrocoagulation treatment of ...

Kurban A. Sitterley, James Rosenblum, Bridger Ruyle, Ryan Keliher, and Karl G. Linden. 2020. “Factors impacting electrocoagulation treatment of hydraulic ,fracturing, fluids and removal of common ,fluid, additives and scaling ions.” Journal of Environmental Chemical Engineering, 8, 3.

Method of Treating Flowback Fluid from a Well - Noles ...
Method of Treating Flowback Fluid from a Well - Noles ...

We claim: 1. A method of treating ,flow back fluid, from a well completion process wherein the ,flow back fluid, contains water, solids, dissolved solids and oil comprising: a) conveying the ,flow back fluid, via a conduit, b) maintaining the pH level of the ,fluid, back ,fluid, above about 7.5, c) adding an oxidizing agent to the ,flow back fluid, at a pressure greater than atmospheric pressure until the ...

Optimal Pretreatment System of Flowback Water from Shale ...
Optimal Pretreatment System of Flowback Water from Shale ...

This paper provides key observations for the potential risks of shale gas drilling and hydraulic ,fracturing, on the quality of water resources and include: (1) stray gas contamination of shallow groundwater overlying shale gas basins; (2) pathways and hydraulic connectivity between the deep shale gas formations and the overlying shallow drinking water aquifers; and (3) inadequate disposal of produced and ,flowback, …

An integrated approach to produced water management ...
An integrated approach to produced water management ...

Produced water and ,flowback, water In recent years, there has been a revolution in shale gas and shale oil production using hydraulic ,fracturing,. This revolution has made the U.S. the largest producer for both natural gas and crude oil. For both shale oil and gas production, a significant amount of water is used for hydraulic ,fracturing, operations.

FRAQ - Pan America Environmental Inc.
FRAQ - Pan America Environmental Inc.

fracturing, waters for removal of TSS, TDS, metals, O&G, ,COD, and other contaminants in frac water applications. Pan America Environmental ,FRAQ,™ systems are a versatile design utilizing a variety of technologies for reuse or disposal of frac ,flowback, water and produced water from gas

Original Research Analysis of Chemical and Toxicological ...
Original Research Analysis of Chemical and Toxicological ...

proved in American research, the amount of the ,fluid, obtained in shale gas ,fracturing, is lower than in the case of a tight oilfield: 40-60% for a vertical well and 10-30% for a horizontal well [11, 12]. The majority of ,flowback, water outflow takes place during the first hours to a dozen or so days. During contact with the deposit, the ...

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