Removal of Nickel and Cadmium Ions from Wastewater by Sorptive Flotation: Single and Binary systems

The removal of heavy metal ions from wastewater by sorptive flotation using Amberlite IR120 as a resin, and column, was investigated. A combined two-stage process is proposed an alternative the metals aqueous solutions. first stage sorption onto followed dispersed-air flotation. on depending contact time, pH, resin dosage, initial concentration studied in batch method .Various parameters such air flow rate, surfactant were investigated stage. Sodium lauryl sulfate (SLS) Hexadecyltrimethyl ammonium bromide (HTAB) used anionic cationic respectively. process, which PH dependent, shows maximum at pH 7. Langmuir Freundlich isotherm expressions found to give both good fit experimental data. Kinetic data correlated well with Lagergren second order kinetic model, step enhanced efficiency nickel cadmium about 75% 94% reduce turbidity so it can dispense filtering expensive technology. It believed that separation has great potential clean water treatment