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- W2371473889 abstract "Chromium - bearing sludges generated from waste water treatment process were leached using sulfuric acid solutions. Factors such as solid and liquid ratios, leaching time and temperatures, are tested. The leaching solution is then extracted to separate chromium and iron using phosphoric acid extraction agent. The experimental results show that about 100% of chromium ion can be leached from the sludge at a liquid and solid ratio of 20 : 1 and a temperature of 50 C .The optimum extraction conditions is: pH about 1.5, O:A is 2:1, equilibrium time 12h, and S% about 40%." @default.
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- W2371473889 date "2003-01-01" @default.
- W2371473889 modified "2023-09-26" @default.
- W2371473889 title "Separation of Cr(III) and Fe(II) in chromium-bearing sludge" @default.
- W2371473889 hasPublicationYear "2003" @default.
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