• Dr. Rekha Ratnakar Deokar

Abstract: In the present investigation, the use of abundantly available, low-cost, highly efficient and eco-friendly biosorbent Chaetomorpha media (C.Agarth) has been reported as an alternative to the current expensive methods of removing of Methylene Blue (MB) and Malachite Green (M.G.) dyes from aqueous binary solution. The effects of different variables viz pH, agitation time, adsorbate concentration, adsorbent dose, agitation speed etc. were investigated for ascertain optimal experimental conditions. Correlation coefficient values were close to unity which suggested that adsorption data were in favor of Langmuir and Freundlich models. Pseudo second-order kinetic model was found favorable to describe the adsorption behavior of both the dyes. The intra particle diffusion was a prominent process right from the beginning of dye-solid interaction. Therefore the adsorption might involve monolayer surface coverage and heterogeneous adsorption mechanism. Present investigation and comparison with other reported adsorbents concluded that, C. media may be applied as a low-cost attractive option for removal of both dyes from a binary mixture.

Adsorption isotherm; Biosorption; binary mixture; Chaetomorpha media; Kinetic study; Malachite Green and Methylene Blue

"Chaetomorpha media (c.agarth): low cost biosorbents for removal of methylene blue and malachite green from binary solution", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.649-654, December-2018, Available :http://www.jetir.org/papers/JETIR1812C95.pdf

"Chaetomorpha media (c.agarth): low cost biosorbents for removal of methylene blue and malachite green from binary solution", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp649-654, December-2018, Available at : http://www.jetir.org/papers/JETIR1812C95.pdf