Various treatment methods are available for the removal of organic pollutants, including adsorption, ion exchange, reverse osmosis, chemical oxidation, precipitation, distillation, gas-strip-ping, solvent extraction, complexation, and bio-remediation.Among these methods, adsorption has proven to be an efficient technology for removing toxic pollutants from the water environment. Activated carbon adsorption has been recommended
by the USEPA as one of the best available technologies in the removal of organic compounds, but it is highly expensive, especially for developing countries like India [4]. For an adsorption process, the availability and cost of adsorbent is very important. In recent years, there has been a continuous search for locally
available and cheaper adsorbents to replace the use of activated carbon [5–10] in the removal of a variety of organic compounds. The cheap and easily available materials like clays, which are modified by ammonium salts, can be used for this purpose. Previous research suggests that organoclays are more effective towards the removal of organic pollutants from the aqueous phase [11].