Removal of Blue 56 by Orange Peel from the Waste Water

The use of orange peel as low-cost and eco-friendly adsorbents has been investigated as an ideal alternative to the current expensive methods of removing dyes from wastewater. This paper concerns with the removal of Blue 56 from aqueous solutions by orange peel. The effects of pH, initial concentration, adsorbent dosage, and particle size of adsorbent, temperature and also isotherm data analysis and adsorption kinetics were investigated. A maximum removal of 96.76% was obtained at pH 2.5 for an adsorbent dose of 0.2 mg. Rate of adsorption was found to conform to pseudo-second-order kinetics with a good correlation (R2=0.99). The maximumadsorption capacity obtained from Langmuir equation was9.69 (mgg-1).</div

Removal of Blue 56 by Orange Peel from the Waste Water

<div style="mso-element: para-border-div; border-top: solid windowtext 1.0pt; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: none; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; padding: 1.0pt 0cm 1.0pt 0cm;"><p class="MsoNormal" style="margin-bottom: .0001pt; text-align: justify; line-height: 150%; mso-layout-grid-align: none; text-autospace: none; direction: ltr; unicode-bidi: embed; border: none; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; padding: 0cm; mso-padding-alt: 1.0pt 0cm 1.0pt 0cm;"><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman','serif';">The use of orange peel as low-cost and eco-friendly adsorbents has been investigated as an ideal alternative to the current expensive methods of removing dyes from wastewater. This paper concerns with the removal of Blue 56 from aqueous solutions by orange peel. The effects of pH</span><span style="font-size: 9.5pt; line-height: 150%; font-family: Symbol; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-char-type: symbol; mso-symbol-font-family: Symbol;">,</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman','serif';"> initial concentration,<strong> </strong>adsorbent dosage, and particle size of adsorbent, temperature and also isotherm data analysis and adsorption<em> </em>kinetics were investigated. A maximum removal of 96.76% was obtained at pH 2.5 for an adsorbent dose of 0.2 mg</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">. Rate of adsorption was found to conform to pseudo-second-order kinetics with a good correlation (</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">R</span>^{<span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">2</span>}<span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">=0.99). The maximum</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">adsorption capacity obtained from Langmuir equation was</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">9.69 (mgg^-1).</span></p></div