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Reuse of acid wastewater from nonferrous metal mines

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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Reuse of acid wastewater from nonferrous metal mines
SHORT COURSE: MINE WATER TREATMENT TECHNOLOGIES …
SHORT COURSE: MINE WATER TREATMENT TECHNOLOGIES …

Mine, Design, Operations, and Closure Conference: Short Course - ,Mine Water Treatment - Technologies,, Case Studies, and Costs May 3, 2015 . Alkali source . ,Wastewater, . Clarifier Sludge Underflow (Continuous) Sludge Conditioning Tan. k

Wastewater Characteristics Management and Reuse in Mining ...
Wastewater Characteristics Management and Reuse in Mining ...

Table 1. Typical contaminants in ,mine wastewater, (adopted from Sivakumar et al., 1992) ... sulfuric ,acid, and lowers the ,pH,. A ,pH, of below 6.5 may be corrosive to plumbing ... ,Mine, water Sea water ,0.5,–2 60–100 200–800 1000–10 000 35 000 Table 2.

Mining Waste Treatment Technology Selection—Technology ...
Mining Waste Treatment Technology Selection—Technology ...

1.5 Σ mmole Al +3, Fe +3 + ,0.5, (1000 x 10>-,pH,) The typical or “rule of thumb” design value that has been generally cited in the literature is 0.3 moles/m 3 /day. Therefore, the metal loading rate should be ≤0.3 moles/m 3 /day for metals to be precipitated as sulfides.

Ferric salts reduce arsenic in mine effluent by combining ...
Ferric salts reduce arsenic in mine effluent by combining ...

Mine, tailings often contain the same toxic heavy metals and ,acid,-forming minerals that waste rock does, ... Dissolved arsenic concentrations of ,0.5, mg/L or less can be obtained by precipitation with ferric iron. ... ,Wastewater pH, can be within 4.5 to 9.0 for treatment, but has an optimum ,pH, range from 6.5 to 8.0.

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