Purification of textile industry waste waters

The activities of societies are increasingly seriously affecting the reproduction of living environments: soil, air, surface and underground waters, forests, rivers, lakes, seas and oceans, Greenhouse effect and damage to the ozone layer [1, 2]. The textile industry uses toxic synthetic dyes which pollute its waste water. The purpose of this research is in the context of the choice of an effective, local and cheap adsorbent for removing dyes from the waste water of the textile industry. The aim of this work is to exploit a mixture of seawater and bentonite. Sea water contains a large amount of magnesium and calcium salts. During the alkalization of one litre of sea water to pH ~ 11, 33 g of a mixture of Mg(OH)2 and (MgOH)2 CO3 and ~ 1 g /l from СаСО3. The previous work has shown that the hydroxides and basic salts of the carbonates of certain metals are more efficient adsorbents