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How to deal with acidic wastewater containing iron

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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How to deal with acidic wastewater containing iron
DETERMINATION OF WATER ACIDITY ALKALINITY AND …
DETERMINATION OF WATER ACIDITY ALKALINITY AND …

Dissociation of the weak acid; H 2 CO 3 ⇌ + HCO 3-+ H + dissolves limestone (CaCO 3 ⇨ Ca 2+ + CO 3 2-) allowing the water to pick up calcium, magnesium and carbonate ions to …

Constructed Wetlands for Treating Acid Mine Drainage
Constructed Wetlands for Treating Acid Mine Drainage

Soil, clay, and synthetic covers can be placed over the ,acid,-generating rock to reduce infiltration of air and water (Durkin & Herrmann 1994). These capping procedures are costly and not completely effective in stopping the interaction of water, air, and pyrite rock. Chemicals can be used that reduce bacteria that catalyze the ,acid,-generation of AMD

Waste water treatment methods | awfrance.com
Waste water treatment methods | awfrance.com

Also in these formulations add reagents, ,acid, gases or alkalis. However, one should take into account the fact that ,neutralization, is a process in consequence of which there is a risk of precipitation. To neutralize ,wastewater,, it is recommended to use cement, dolomite, calcium hydroxide, ,limestone,.

Chemical Theory - Chem Industrial
Chemical Theory - Chem Industrial

The ,limestone neutralization, system is limited by the concentration and the rate of dissolution of carbonate. The solubility product defines that the carbonate dissolution cannot exceed 4.9×10-9 N. Increasing the surface area of ,limestone, can optimize the rate of dissolution; however, it must be ground to a particle size of approximately -200 mesh to be effective.

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