Perspective Wastewater Treatment from Cu²⁺ Ions in the Mining Industry

Abstract

The synthesis of new cation-exchanger based on local raw materials for the extraction of copper from copper-containing solution investigated. A review of the literature regarding the problem of ion exchange method and the use of mine wastewater treatment process is presented. Sorption selectivity of Cu2+ ions by cation exchanger in the H-and Na-forms from dilute solutions was studied in the target concentration range 90 mg/dm3 and 5,49 g/ dm3. The full dynamic exchange capacity calculated. The cation exchanger analyzed with consideration for IR spectroscopic, chemical analysis, and scanning electron microscopic data. Quantum-chemical calculations performed that synthesized cation-exchanger stable complexes with Cu2+ ions. Obtained cation exchanger due to excellent behavior recommended removing copper ions from wastewater in the mine industry.

The result of an experimental study of the processing of silkworm cocoons

“…The caterpillars of this silkworm eat only the leaves of mulberry, or mulberry tree. Silkworm caterpillars curl cocoons, the shells of which consist of a continuous silk thread 300-900 m long and up to 1500 m in the largest cocoons [6][7][8].…”

Syntheses of Cation Exchanger With Macroporosity and Investigating Specific Properties

“…The sulfonation temperature 70°C for 6 hours. To avoid deformation of the polymer matrix after sulfonation, the cooled polymer was washed with sulfuric acid, decreasing the concentration successively to 75, 50, 25 and 10% and then washed with distilled water until neutral wash water, then the resulting cation exchanger was dried at 80-90°C in a drying cabinet [10][11][12][13].…”