ABSTRACT
Chloride ions could corrode drainage pipes and buildings, causing serious damage and environmental pollution. In this work, the high alkali lime method combined with simulated flue gas was used to remove chloride ions from industrial dye wastewater. Calcium oxide and sodium aluminate were added to wastewater according to the mole ratio and then the simulated flue gas was also added to the above reaction solution to achieve the best removal effect. The optimized removal rate of chlorine ions in the dye wastewater could reach 64.1% at n(Ca2+): n(Al3+): n(Cl-) of 12:3.5:1, the reaction time of 60 minutes, and the pH value of 9. By adding lime, and reduce the air pollution. This method conforms with the concept of carbon emission reduction and carbon neutralization, which achieves the effect of using waste to treat waste.
