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Ions that make wastewater acidic

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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Ions that make wastewater acidic
Evaluation of Long-term Impact of Coal Mining in Zambezi ...
Evaluation of Long-term Impact of Coal Mining in Zambezi ...

The main problem of ,coal, mining is ,acid mine, drainage generation. When the ,acid mine, drainage reaches the natural sources of water it contaminates by lowering the pH and increasing the content of sulphate, iron, aluminium, manganese and heavy metals. From the estimations done it was concluded

Potential reuse of coal mine wastewater: a case study in ...
Potential reuse of coal mine wastewater: a case study in ...

Coalmine effluent has always been of concern in wastewater management. The wastewater from coalmines often called "Acid mine drainage" (AMD) is formed in underground workings (groundwater) of deep mines, and usually has low pH, high specific conductivity, high concentrations of iron, aluminum, manganese, high

Water pollution from coal - Global Energy Monitor
Water pollution from coal - Global Energy Monitor

Water Pollution from Coal includes negative health and environmental effects from the mining, processing, burning, and waste storage of coal, including acid mine drainage, thermal pollution from coal plants, acid rain, and contamination of groundwater, streams, rivers, and seas from heavy metals, mercury, and other toxins and pollutants found in coal ash, coal sludge, and coal waste.

The Use of Measured and Calculated Acidity Values to ...
The Use of Measured and Calculated Acidity Values to ...

coal mine drainage, the primary acidic metals are Fe, Al, and Mn. If the concentrations of the alkaline and acidic components are known, the net acidity of the water can be calculated. The correspondence of the calculated acidity value and the measured acidity provides an evaluation of the completeness and quality of the analytical results.

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