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Recovery and treatment 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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Recovery and treatment of fracturing flowback fluid
Remediation of Manganese-Contaminated Coal-Mine Water ...
Remediation of Manganese-Contaminated Coal-Mine Water ...

A lignite ,coal mine, situated in the northern part of Thailand (500292E, 1966086N) was selected as the source of natural ,wastewater, for this study. Mining operations at this ,coal mine, have been suspended since the end of 2008 due to the depletion of ,coal, reserves. Since 2014, this ,coal mine, has been going through a period of rehabilitation.

A Survey of Experience Gained from the Treatment of Coal ...
A Survey of Experience Gained from the Treatment of Coal ...

The subject of this study is the ,acid, water produced by mining. ,Wastewater, resulting from ,coal, mining can be divided into ,mine, water, process ,wastewater,, domestic ,wastewater, and storm water [7] . ,Mine, water can be defined as the ground or surface water at a mining site [2] . Process water can be divided into liquid effluent and tailings.

TREATING ACIDITY IN COAL PIT LAKES USING SEWAGE AND …
TREATING ACIDITY IN COAL PIT LAKES USING SEWAGE AND …

are a number of highly acidic ,mine, lakes in the Collinsville ,Coal, Project (CCP) with high sulfate levels. • CCP discharged 4 ML of highly acidic ,mine, water (typical of their pit lakes) into a 80 ML sewage evaporation pond. CCP and later the authors (CM & ML) monitored the effects of this discharge on water quality in the ponds.

Treatment of Ferrous Acid Mine Drainage with Activated Carbon
Treatment of Ferrous Acid Mine Drainage with Activated Carbon

Reduction of ,Iron, Because of theaunexpected reduction of ferric ,iron,, Fe3+, to the fer^ rous state, Fe , which occurred during the previously described ex- periments, batch and continuous flow experiments were conducted with a synthetic ,coal mine, water ,containing, approximately 250 mg/1 of ferric ,iron,, Fe3 , added as ferric nitrate and having a pH of 2.5.

Treatment methods for water pollution from coal mining in ...
Treatment methods for water pollution from coal mining in ...

the presence of sulfides ,in coal,, ,wastewater, from ,coal, mining contain sulfate which can pollute the water courses (José & Sampaio, 2011). The main environmental problem of ,coal, mining is the ,acid mine, drainage which will be discussed further in this report. This report will be focus on Moatize (Tete) district because

Electrobiochemical Neutralization of Acid Mine Water
Electrobiochemical Neutralization of Acid Mine Water

of ,acid mine, water F. D. Sisler, F. E. Senftle, J. Skinner U. S. Geological Survey, Reston, Va. When ,iron, sulfides in a ,coal mine, are ex posed to water ,containing, oxygen and sulfur oxidizing bacteria, oxidation takes place, which results in the formation of sulfuric ,acid,. The ,acid mine, water so formed constitutes a formid

Coal and Coal Mine Drainage - JSTOR
Coal and Coal Mine Drainage - JSTOR

The ,iron, removed from ,acid mine, drainage as heavily hydrated ,iron, sludge, which can also contain aluminum, sulfate, and unused neutralizing reagent, presents problems of dis posal. Grube and Wilmoth 10 described the EPA two-phase research program on sludge being conducted at the Crown ,Mine, Drainage Control Site in West Virginia. By applying ...

REVIEW ON REMOVAL OF HEAVY METALS FROM ACID MINE DRAINAGE
REVIEW ON REMOVAL OF HEAVY METALS FROM ACID MINE DRAINAGE

in order to control and decrease the level of heavy metals as pollutants from ,acid mine, drainage ,wastewater,. Keywords: Treatment, effects, metals, ... found near subsurface ,coal, seams along with compounds ,containing, manganese, aluminum, and other metals. ... concentration of ferrous ,iron,. The mechanism of ,acid mine, drainage formation was .

TREATING ACIDITY IN COAL PIT LAKES USING SEWAGE AND …
TREATING ACIDITY IN COAL PIT LAKES USING SEWAGE AND …

are a number of highly acidic ,mine, lakes in the Collinsville ,Coal, Project (CCP) with high sulfate levels. • CCP discharged 4 ML of highly acidic ,mine, water (typical of their pit lakes) into a 80 ML sewage evaporation pond. CCP and later the authors (CM & ML) monitored the effects of this discharge on water quality in the ponds.

Enriched Co-Treatment of Pharmaceutical and Acidic Metal ...
Enriched Co-Treatment of Pharmaceutical and Acidic Metal ...

conditions produces ,acid mine, drainage [1]. According to Masindi and Muedi [2], the formation of ,acid mine, drainage (AMD) may be represented as: 2FeS2 +O2 +2H2O !2Fe2+ +4SO2 4 +H + (1) Through sulfide oxidation to sulfate solubilizes the Fe2+ Equation (1), then oxidized to Fe3+ Equation (2): 4Fe2+ +O 2 +4H +!4Fe3+ +2H 2O (2)

Dewatering of Mine Drainage Sludge
Dewatering of Mine Drainage Sludge

"An Experimental Investigation of the Treatment of ,Acid Mine, Water ,Containing, High Concentrations of Ferrous ,Iron, with Limestone," Third Symposium on ,Coal Mine, Drainage Research, Mellon Institute, Pittsburgh, Pennsylvania, pp 52-65 (May 1970).

(PDF) Acid Mine Drainage (AMD): causes treatment and case ...
(PDF) Acid Mine Drainage (AMD): causes treatment and case ...

Naturally-occurring bacteria can ac- celerate AMD production by assisting in the breakdown The mining of certain minerals, including gold, of sulfide minerals. copper, and nickel, is associated with ,acid, drainage Also referred to as ,acid, rock drainage (ARD), AMD problems that can cause long-term impairment to emanating from ,mine, waste rock, tailings, and ,mine, waterways and …

Acid Mine Drainage Status and Water Quality Parameter in ...
Acid Mine Drainage Status and Water Quality Parameter in ...

recommended for control of ,Acid Mine, Drainage at underground ,coal mine, R3 and R6, NCPH colliery :- 1) Pumping Arrangement:-Sufficient pumping arrangements should be installed, enough for complete and efficient pumping the accumulated ,acid, water. Pump fittings, impellers, supply pipes should be made of corrosion resistant material.

Stream Monitoring and Preliminary Co-Treatment of Acid ...
Stream Monitoring and Preliminary Co-Treatment of Acid ...

This study investigated ,coal,-,mine, drainage (AMD) and municipal ,wastewater, (MWW) contaminant concentrations and conducted the combined treatment in phases I and II: phase I, evaluating the effects of mixing the two based on the extent of ,acid, neutralization and metals removal; phase II: conducting anaerobic batch reactor treatment of AMD and MWW under varying COD/sulfate ratios (0.04-5.0).

Treatment of Ferrous Acid Mine Drainage with Activated Carbon
Treatment of Ferrous Acid Mine Drainage with Activated Carbon

Reduction of ,Iron, Because of theaunexpected reduction of ferric ,iron,, Fe3+, to the fer^ rous state, Fe , which occurred during the previously described ex- periments, batch and continuous flow experiments were conducted with a synthetic ,coal mine, water ,containing, approximately 250 mg/1 of ferric ,iron,, Fe3 , added as ferric nitrate and having a pH of 2.5.

A Survey of Experience Gained from the Treatment of Coal ...
A Survey of Experience Gained from the Treatment of Coal ...

The subject of this study is the ,acid, water produced by mining. ,Wastewater, resulting from ,coal, mining can be divided into ,mine, water, process ,wastewater,, domestic ,wastewater, and storm water [7] . ,Mine, water can be defined as the ground or surface water at a mining site [2] . Process water can be divided into liquid effluent and tailings.

Environmental impacts of coal - Global Energy Monitor
Environmental impacts of coal - Global Energy Monitor

Coal sludge, also known as slurry, is the liquid coal waste generated by washing coal. It is typically disposed of at impoundments located near coal mines, but in some cases it is directly injected into abandoned underground mines. Since coal sludge contains toxins, leaks or spills can endanger underground and surface waters.

Remediation of Manganese-Contaminated Coal-Mine Water ...
Remediation of Manganese-Contaminated Coal-Mine Water ...

A lignite ,coal mine, situated in the northern part of Thailand (500292E, 1966086N) was selected as the source of natural ,wastewater, for this study. Mining operations at this ,coal mine, have been suspended since the end of 2008 due to the depletion of ,coal, reserves. Since 2014, this ,coal mine, has been going through a period of rehabilitation.

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