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Treatment of nickel wastewater in acid environment

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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Treatment of nickel wastewater in acid environment
Lime Use in Wastewater Treatment: Design and Cost Data
Lime Use in Wastewater Treatment: Design and Cost Data

Hydrated lime, or slaked ,lime, is a dry powder obtained by a chemical ,reaction, that occurs when sufficient water is added to quicklime to satisfy its affinity for water. This form of ,lime, is also referred to as hydrate. The chemical composition ,of hydrated lime, depends on the calcium oxide content of the quicklime from which it is derived.

lime dosing in wastewater treatment
lime dosing in wastewater treatment

As mentioned above ,lime, consumption is dependent on the alkalinity of the ,wastewater,: only 10% of the ,lime, fed is used in the phosphorous removal ,reaction,. The functions of ,lime, in water treatment. Depending on the sludge buffering capacity, between 20 and 40% CaO per unit of dry solids (DS) - or equivalent quantity of Ca(OH)2 or liquid ,lime, - is capable of producing a treated …

1.7: Lime Softening - Workforce LibreTexts
1.7: Lime Softening - Workforce LibreTexts

Hydrated lime, can be used directly. The calcium oxide or quicklime must first be slaked. This process involves adding the calcium oxide to water and heating it to cause slaking, which is the formation of calcium hydroxide (Ca(OH)2) before use. Small facilities commonly use ,hydrated lime,.

Wetland Use in Acid Mine Drainage Remediation
Wetland Use in Acid Mine Drainage Remediation

20/11/2005, · of ,lime, into the system (see figure 2 for two examples of ,lime, addition). The addition of ,lime, (calcium carbonate) raises the pH of the ,wastewater, by reacting with hydronion ions (Equations 12 & 13). ,Lime, also adds alkalinity to the water by producing bicarbonate ions (Costello 2003, Younger et al., 2002). One option is to use an anoxic limestone

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