Chemically treated kola nut pod as low-cost natural adsorbent for the  removal of 2,4-dinitrophenol from synthetic wastewater: batch equilibrium,  kinetic, and thermodynamic modelling studies

Samuel AGARRY; Oladipupo OGUNLEYE

doi:https://doi.org/10.3906/muh-1304-24

Makale detayları

Chemically treated kola nut pod as low-cost natural adsorbent for the removal of 2,4-dinitrophenol from synthetic wastewater: batch equilibrium, kinetic, and thermodynamic modelling studies

Yazarlar:

Samuel AGARRY | Oladipupo OGUNLEYE

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2014 Vol.38 Issue 1, pp.11-40

Belge Tipi:

Makale

Yayın Tarihi:

12/2013

Belge Dili:

İngilizce

Document ID (Org No.):

2000744530

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160

DOI:

https://doi.org/10.3906/muh-1304-24

Özet:

 

The feasibility of using chemically treated kola nut pod to remove  2,4-dinitrophenol from its aqueous solutions under batch mode was  investigated. The results showed that biosorption of 2,4-dinitrophenol was  dependent on initial concentration, contact time, pH, biosorbent particle  size, biosorbent dosage, and temperature. The batch equilibrium biosorption  data were analyzed by 2 two-parameter (Langmuir and Freundlich) and 2  three-parameter (Redlich--Peterson and Sips) adsorption isotherm models  using linear and nonlinear regression methods. The Sips  isotherm equation employing the parameter sets derived using the  HYBRID/MPSD/ARE errors provided the overall best model to describe the  biosorption data of the 2,4-dinitrophenol-kola nut pod system. The maximum  monolayer biosorption capacity (Q\max) was obtained to be 32.26 mg/g  with linear regression and 30.10 mg/g with nonlinear regression. The  biosorption kinetic data were fitted to 6 biosorption kinetic models using  the linear regression method. The 6 kinetic models fitted well to  the biosorption kinetic data; however, the pseudo-first-order kinetic model  gave the best fit and the biosorption mechanism was controlled by film  diffusion. The thermodynamic analysis indicates that the  biosorption process was spontaneous, feasible, exothermic, and physical in  nature. Thus, chemically modified kola nut pod has potential for application  as an effective bioadsorbent for 2,4-dinitrophenol removal from wastewater.

Makale detayları

Chemically treated kola nut pod as low-cost natural adsorbent for the removal of 2,4-dinitrophenol from synthetic wastewater: batch equilibrium, kinetic, and thermodynamic modelling studies

Yazarlar: Samuel AGARRY | Oladipupo OGUNLEYE

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Engineering and Environmental Sciences 2014 Vol.38 Issue 1, pp.11-40

Belge Tipi: Makale

Yayın Tarihi: 12/2013

Belge Dili: İngilizce

Document ID (Org No.): 2000744530

Sıklık: Üç Yıllık

eISSN: 1303-6157

pISSN: 1300-0160

DOI: https://doi.org/10.3906/muh-1304-24

Sayı

Yazarlar:

Samuel AGARRY | Oladipupo OGUNLEYE

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2014 Vol.38 Issue 1, pp.11-40

Belge Tipi:

Makale

Yayın Tarihi:

12/2013

Belge Dili:

İngilizce

Document ID (Org No.):

2000744530

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160

DOI:

https://doi.org/10.3906/muh-1304-24