Skip to main content
Log in

Competitive adsorption isotherm modelling of heterocyclic nitrogenous compounds, pyridine and quinoline, onto granular activated carbon and bagasse fly ash

  • Original Paper
  • Published:
Chemical Papers Aims and scope Submit manuscript

Abstract

In the present study, simultaneous adsorption of quinoline and pyridine onto adsorbents such as granular activated carbon (GAC) and bagasse fly ash (BFA) from pyridine–quinoline binary aqueous solution was studied at various temperatures (288–318 K). Gathered equilibrium adsorption data were further analysed using various multicomponent competitive isotherm models such as non-modified and modified competitive Langmuir isotherms, extended-Langmuir isotherm, extended-Freundlich model, Sheindorf–Rebuhn–Sheintuch (SRS) model, and non-modified and modified competitive Redlich–Peterson isotherm model. It was observed that increase in pyridine concentration decreased the total adsorption yield and the individual adsorption yield for both the quinoline and pyridine for both the adsorbents GAC and BFA at all the temperatures studied. Identical trend was observed during the equilibrium uptake of pyridine on to GAC and BFA with an increase in quinoline concentration. The extended-Freundlich model satisfactorily represented the binary adsorption equilibrium data of quinoline and pyridine onto GAC and BFA.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

Abbreviations

a ij :

Competition coefficients of component i by component j, dimensionless

a R :

Constant of Redlich–Peterson isotherm, L/mg

C 0,i :

Initial concentration of each component in solution, mg/L

K i :

Individual extended-Langmuir isotherm constant of each component, L/mg

n m :

Number of measurements

n p :

Number of parameters

N :

Number of data points

q e,i :

Equilibrium solid phase concentration of each component in binary mixture, mg/g

\(q_{\text{e,cal}}\) :

Calculated value of solid phase concentration of adsorbate at equilibrium, mg/g

\(q_{\text{e,exp}}\) :

Experimental value of solid phase concentration of adsorbate at equilibrium, mg/g

q max :

Max adsorption capacity

x i , y i , z i :

Constants in the extended-Freundlich isotherm

β i :

Constant in SRS model for each component, dimensionless

η L,i :

Multi-component (competitive) Langmuir adsorption constant of each component, dimensionless

η R,i :

Multi-component (competitive) R–P adsorption constant of each component, dimensionless

GAC:

Granular activated carbon

BFA:

Bagasse fly ash

AC:

Activated carbon

References

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Vimal Chandra Srivastava.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOC 4898 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Rameshraja, D., Srivastava, V.C., Kushwaha, J.P. et al. Competitive adsorption isotherm modelling of heterocyclic nitrogenous compounds, pyridine and quinoline, onto granular activated carbon and bagasse fly ash. Chem. Pap. 72, 617–628 (2018). https://doi.org/10.1007/s11696-017-0321-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11696-017-0321-6

Keywords

Navigation