The adsorption experiment of limestone on red mud waste liquid

The main purpose of the experiment is to study the adsorption and influencing factors of limestone to fluorin ion in the red mud waste liquid. The test result indicated that the adsorption capacity of limestone to fluorin ion in the red mud waste liquid is very small. The main influencing factors are pH, water-soluble calcium, calcium particles activity, the composition and surface area of limestone, etc. Only depends on the limestone to the fluorin ion adsorption not to be able to achieve to the harmless request to periphery ecological environment, it must carry on further processing to it that be able to eliminate adverse effect to the environment. Red mud waste liquid can be used treatment emissions and wastewater of acid plant, in order to achieve the purpose of adjusting the pH value. Then can use precipitation, coagulation sedimentation, adsorption, and so on to fluorin ion for further treatment.