Volume : 6, Issue : 6, June - 2017

Enteromorpha intestinalis: Low Cost Biosorbent for Methylene Blue and Malachite Green from Binary Solution

Dr. Rekha Ratnakar Deokar

Abstract :

<p>&nbsp;<span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-indent: 0.5in;">Biosorption of Methylene Blue (M.B.) and Malachite Green (M.G.) from binary solution onto dried biomass of green seaweed </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-indent: 0.5in;">Enteromorpha intestinalis</i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-indent: 0.5in;"> ( L.) Knee was investigated. The biosorption was analyzed with respect to the pH, initial concentration of dye, agitation time and adsorbent dose. Removal percentage of both the dyes was maximum in 100 ppm dye solution at pH 7 when 100 mg adsorbent was used for one hour. 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 from the beginning of dye-solid interaction. Therefore biosorption might involve monolayer surface coverage and heterogeneous adsorption mechanism. Thus </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-indent: 0.5in;">Enteromorpha intestinalis</i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-indent: 0.5in;"> can be used as a low cost adsorbent for both dyes from a binary mixture</span><b style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-indent: 0.5in;">. &nbsp;</b></p> <p class="MsoNormal" style="margin-left:0in;text-indent:.5in;line-height:200%"><span style="font-size:12.0pt;line-height:200%;font-family:&quot;Times New Roman&quot;,serif"><b><o:p></o:p></b></span></p>