Investigation on using rice–husk as low cost adsorbent for dye removal from industrial wastewater


This study investigated the use of activated rice- husk as adsorbent for the removal of Janus Green B dye from industrial wastewater. Adsorption studies were carried out in a batch process with adsorbent dose , contact time , pH , initial dye concentration and adsorbents’ particle size at ambient temperature . The well Known Langmuir and Freundlich isotherm models were applied for the equilibrium adsorption data and the various isotherm parameters were evaluated . The results indicate that activated rice – husk could be employed as a low cost alternative to commercial activated carbon in wastewater treatment for the removal of colour and dyes .