Removal of copper(II) from some environmental samples by sorptive-flotation using powdered marble wastes as sorbents and oleic acid as surfactant.
A simple and economic experimental sorptive -flotation procedure is presented for the removal of copper(II) species from aqueous solutions. It is based on using powdered marble wastes (PMW), which are widespread and inexpensive and may represent an environmental problem, as the effective inorganic sorbent and oleic (HOL) as the surfactant. The main parameters (i.e. initial solution pH, sorbent, surfactant and copper concentrations, stirring times, ionic strength, temperature and the presence of foreign ions) influencing the flotation of PMW and /or Cu(II) were examined. Nearly, 100% of PMW and Cu(II) were removed from aqueous solutions at pH7 after stirring for 10 min and at room temperature, (approximately 25 degrees C). The procedure was successfully applied to recover Cu(II) spiked to some natural water samples. A mechanism for sorption and flotation is suggested.
Ghazy
S E
SE
Chemistry Department, Faculty of Science, Mansoura University, P.O. Box 66, Mansoura, Egypt.
Samra
S E
SE
Mahdy
A F M
AF
El-Morsy
S M
SM
D002119:Calcium Carbonate / Q000737:chemistry*; D003252:Construction Materials; D003300:Copper / Q000032:analysis* / Q000302:isolation & purification*; D004784:Environmental Monitoring / Q000379:methods; D011208:Powders; D013501:Surface-Active Agents; D014873:Water Pollutants / Q000032:analysis* / Q000302:isolation & purification*
D011208:Powders; D013501:Surface-Active Agents; D014873:Water Pollutants; D003300:Copper; D002119:Calcium Carbonate