PREPARATION OF TERMOACID ADSORBENT OF THE CENTRAL REGION BENTONITAS FOR THEIR EMPLOYMENT IN THE RETENTION OF HEAVY METALS

Abstract

This study was developed bearing in mind the big importance that implies the protection of the environment and in particular the treatment of the industrial waters contaminated with heavy metals, which represent a big danger for health. The employment of modified clay as cash adsorbent for the removal of heavy metals, lead, zinc, copper and iron. The process of adsorbing was realized to scale batch taking in consideration the variables as metal concentration to adsorb, time of adsorbing, adsorbent quantity. It wasfound that the modified clays are effective removing between 82,00  98,98 % of ions lead of solutions with initial concentrations of 10 mg/L of lead, also it was proved that there is a good adsorbing of iron and in minor measurement the adsorbing of zinc, with initial concentrations of 10 mg/L of every metal. With these experiences it been proved that the clays submitted to a treatment term acid improve.