Kinetic Model for the Removal of Amaranth Dye from Aqueous Solution using Avocado Pear Seed as Biomass

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Year:
2017
Type of Publication:
Article
Keywords:
Amaranth Dye, Dye Removal and Adsorption Kinetics
Authors:
  • A. K. Asiagwu
  • M. A. Okposo
  • B. O. Peretomo-Clarke
  • C. K. Ojebah
Journal:
IJISM
Volume:
5
Number:
4
Pages:
119-123
Month:
July
ISSN:
2347-9051
Abstract:
This work presents the kinetic experiments carried out for the removal C57 as a basic dye from waste water using avocado pear seed waste biomass. The impacts of major variables governing the efficiency of the process such as temperature, interaction time, concentration, adsorbent dosage, and pH were checked. However the parameter impact result reflected that the quantity of the basic dye taken away increased from 0.194 – 0.212mg/g as the pear seed dosage was increased from 2000-6000 mg. In the same line the quantity of dye taken up increased from 0.198-0.202mg/g as increase interaction time changed from 20-40mins, thereafter the dye adsorbed decreased at a interaction time of 60 – 100 mins. Also, the dye adsorption capacity increased from 0.195-1.194mg/g with an increase in concentration of dye from 10mg/l – 50mg/l. the Langmuir and Freundlich models were applied to depict the adsorption efficiency. The squares of correlation coefficient (R2) for both isotherms were 0.102 and 0.019 respectively. The basic dye abatement mechanism was analyzed using the linearized pseudo-first order and pseudo –second order kinetics having a correlation coefficient (R2) of 0.336 and 0.999 respectively and the rate constant K1 and K2 were also determined. The experimental data was perfectly described by pseudo second-order adsorption kinetics
Full text: IJISM_631_FINAL.pdf

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