HUMIC ACID UPTAKE FROM AQUEOUS MEDIA USING HYDROTALCITES AND MODIFIED MONTMORILLONITE

摘要

Humic acid occurs in waters naturally. Humic acid gives its characteristic yellowish to brownish colour to water making it unaesthetic. In this study, synthetic hydrotalcite, hydrotalcite-like compounds, calcined hydrotalcites and modified forms of Montmorillonite were used to remove humic acid from water. The results indicated that surfactant treated Montmorillonite Was more effective than other forms of modified Montmorillonite.