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In the treatment of acid wastewater containing nickel

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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In the treatment of acid wastewater containing nickel
water treatment – precipitation inhibitors - Degremont®
water treatment – precipitation inhibitors - Degremont®

in industrial ,wastewater treatment,. In industrial ,wastewater, such as that produced by gas scrubbing, the simultaneous presence of metal cations (Ni 2+, ... (ethylene-diaminetetracetic ,acid,) ... The retarding action is straight forward on ,calcium carbonate, but a little less so on magnesia and ,calcium, sulphate.

Advanced treatment of livestock wastewater using an ...
Advanced treatment of livestock wastewater using an ...

carbonate addition on wastewater treatment (especially ammonium oxidation), four types of columns were prepared according to the rate and the particle size of calcium carbonate: column I, 0% (w/w) CaCQ; column 2, 1.5% (w/w) CaCQ; column 3, 20% (w/w) CaCO3;

Limestone for pH Adjustment in Industrial Wastewater ...
Limestone for pH Adjustment in Industrial Wastewater ...

The neutralization process occurs when strong acids, in intimate contact with limestone chips, react with Calcium Carbonate (CaCO 3, the primary constituent of limestone) to form water, carbon dioxide, and calcium salts. The following depicts the neutralization of hydrochloric acid by limestone. CaCO 3 + 2HCl → CaCl 2 + CO 2 + H 2 O

Calcium (Ca) and water - Water Treatment and Purification
Calcium (Ca) and water - Water Treatment and Purification

Other examples of ,calcium, applications are ,calcium, hypo chloride as bleach and for disinfection, ,calcium, phosphate in glass and porcelain industries, ,calcium, polysulphide and hydroxide as flocculants in ,wastewater treatment,, and ,calcium, fluoride as turbidity agent in enamel industries, in UV-spectroscopy, and as a raw material for fluid ,acid, production.

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