Removal of acid dyes from aqueous solution using potato peel waste biomass: a kinetic and equilibrium study

The potential of white potato peel powder for the removal of methyl red (MR) dye from aqueous solution was investigated. The adsorbent was characterized by FTIR and SEM analysis. Batch adsorption studies were conducted and various parameters such as contact time, adsorbent dosage, initial dye concentration, pH and temperature were studied to observe their effects in the dye adsorption process. The optimum conditions for the adsorption of MR onto the adsorbent (WPPP) was found to be contact (80 mins), pH (2) and temperature (303K) for an initial MR dye concentration of 50mg/l and adsorbent dose of 1.0g. The experimental equilibrium adsorption data of the (MR) dye fitted best and well to the Freundlich isotherm model. The maximum adsorption capacity was found to be 30.48mg/g for the adsorption of MR. The kinetic data conforms to the pseudo – second order kinetic model.

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Kinetic and Thermodynamic Studies of Chromium (VI) Sorption by Pure and Carbonized Fluted Pumpkin waste biomass (Telfairia occidentalis Hook F.)

Journal of Nepal Chemical Society ◽

10.3126/jncs.v27i1.6436 ◽

2012 ◽

Vol 27 ◽

pp. 11-18

Author(s):

Timi Tarawou ◽

Michael Horsfall

Keyword(s):

Aqueous Solution ◽

Rate Constants ◽

Industrial Effluents ◽

Second Order ◽

Order Kinetic ◽

Waste Biomass ◽

Fluted Pumpkin ◽

Chromium Vi ◽

Telfairia Occidentalis ◽

Pseudo Second Order

The adsorption of chromium (VI) ions from aqueous solution was studied using pure and carbonized fluted pumpkin waste biomass (FPWB). The kinetic data shows a pseudo-first-order mechanism with rate constants of 1.26 × 10-2 and 1.933 × 10-2 mg g-1 min-1 for the pure and carbonized FPWB, respectively. While the pseudo-second-order mechanism has rate constants of 0.93 × 10-1 and 1.33 × 10-1 mg g-1 min-1 for the pure and carbonized waste biomass respectively. The pseudo-second order kinetic model was found to be more suitable for describing the experimental data based on the correlation coefficient values (R2) of 0.9975 and 0.9994 obtained for pure waste biomass (PWB) and carbonized waste biomass (CWB), respectively. The results obtained from this study show that PWB and CWB have very high removal capacity for chromium (VI) from aqueous solution over a range of reaction conditions. Thus, fluted pumpkin waste biomass (Telfairia occidentalis Hook F) is a potential sorbent for the treatment of industrial effluents containing chromium (VI) contaminant.DOI: http://dx.doi.org/10.3126/jncs.v27i1.6436 J. Nepal Chem. Soc., Vol. 27, 2011 11-18Uploaded date: 16 July, 2012

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Biosorption of malachite green dye from aqueous solution by calcium alginate nanoparticles: Equilibrium study

Journal of Molecular Liquids ◽

10.1016/j.molliq.2015.10.035 ◽

2015 ◽

Vol 212 ◽

pp. 723-730 ◽

Cited By ~ 30

Author(s):

P. Geetha ◽

M.S. Latha ◽

Mathew Koshy

Keyword(s):

Aqueous Solution ◽

Malachite Green ◽

Calcium Alginate ◽

Equilibrium Study ◽

Malachite Green Dye

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Kinetic Model for the Sorption of Ni(II), Cu(II) and Zn(II) onto Cocos Mucifera Fibre Waste Biomass from Aqueous Solution

Journal of Chemical Engineering & Process Technology ◽

10.4172/2157-7048.1000149 ◽

2013 ◽

Vol 04 (02) ◽

Cited By ~ 2

Author(s):

Augustine K. Asiagwu ◽

Hilary I. Owamah ◽

Izinyon O. Christopher

Keyword(s):

Aqueous Solution ◽

Kinetic Model ◽

Waste Biomass ◽

Fibre Waste

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Adsorption of Acid Dyes from Aqueous Solution on a Chitosan-cotton Composite Material Prepared by a New Pad-dry Process

Journal of Engineered Fibers and Fabrics ◽

10.1177/155892501100600301 ◽

2011 ◽

Vol 6 (3) ◽

pp. 155892501100600 ◽

Cited By ~ 13

Author(s):

Mahjoub Jabli ◽

Mohamed Hassen V. Baouab ◽

Mohamed Sadok Roudesli ◽

Aghleb Bartegi

Keyword(s):

Aqueous Solution ◽

Indigo Carmine ◽

Langmuir Equation ◽

Acid Dyes ◽

Chain Molecules ◽

Dry Process ◽

Dipole Interactions ◽

Cure Time ◽

Recovery Angle ◽

Acid Blue

In this paper, we developed a method that may be considered as an easy and economical way to prepare chitosan-cotton composite (CH-cotton) materials using an electrolytes-free pad-dry process in which the cure step was performed in an oven microwave to provide a cotton fabric with greatly enhanced affinity for acid dyes. Evidence of successful interaction between cotton and CH through formation of hydrogen bonding and/or ion dipole interactions was analysed by FTIR spectroscopy. Influence of cure time onto the weight per surface unit of samples has been studied and five CH-cotton composite materials with different %CH content (I-V) were prepared. Crosslinking of cellulosic chain molecules of cotton fiber through CH segments was confirmed by Wrinkle Recovery Angle (WRA) and Tensile properties measurements. CH-cotton samples were then tested as adsorbent of four acid dyes from no-electrolytes aqueous solution [Indigo Carmine (AB74), Acid Red 183 (AR183), Acid Blue 161 (AB161) and Acid Yellow 17 (AY17)]. Results were monitored using, reflectance spectro-colorimeter and spectrophotometer analyses. Data obtained with treated cotton showed better dye exhaustion than obtained with untreated one. The modelling of the adsorption isotherms was performed by Langmuir equation and the thermodynamic parameters were evaluated. Globally, the lack of affinity of cotton for acid dyes is widely overcome by the use of low %CH content ranging from 0.079 to 0.515

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