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Edwin Andrew Ofudje
Mountain Top University
Corresponding Author
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The presence of heavy metals in polluted water is known not only to cause stern harm to marine organisms but also to terrestial plants and animals including human beings. This research applied low-cost and environmental benign adsorbent primed from waste orange peel (OP) in the removal of Cd(II) ions from aqueous solution via the batch process. The surface properties of the orange peel powder was studied using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (XRD) and Fourier transform infrared spectroscopy FT-IR). Operational conditions like temperature, contact time, sorbent dosage, solution pH and initial adsorbate concentration were investigated. The utmost uptake of Cd(II) ion was obtained at the contact time of 120 min, initial metal concentration of 240 mg/L, adsorbent dosage of 0.04 g/L, temperature of 45 °C and solution pH of 5.5 on the adsorption of Cd(II) ion. Equilibrium results showed that the orange peel adsorbent has an adsorption capacity of 27.916 mg/g as obtained from the Langmuir isotherm. The adsorption kinetics data followed a Pseudo-first-order kinetic model with correlation coefficient (R2) > 0.9 and low standard % error values. The adsorption process was found to be spontaneous, feasible and with enthalpy of 0.0046 kJ mol− 1 and entropy of -636.865 Jmol− 1K− 1 respectively. Results from the optimization study indicated that higher adsorbent dosage and lower Cd(II) ion concentration increased the percentage of Cd (II) ion removal. Thus, orange peel could be used in the removal of Cd(II) ion from aqueous solutions.
Keywords
Adsorption, cadmium, equilibrium, kinetics, orange peel
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CURRENT STATUS: Published
View the published article at Bioresources and Bioprocessing.
No community comments so far
Reviewer #2 agreed
On 26 May, 2020
Review #2 received
Received 26 May, 2020
Editorial decision: Accept
On 26 May, 2020
Review #1 received
Received 23 May, 2020
Reviewers invited
Invitations sent on 23 May, 2020
Reviewer #1 agreed
On 23 May, 2020
Editor assigned
On 22 May, 2020
Submission checks complete
On 21 May, 2020
Editor invited
On 21 May, 2020
Version 1
Posted 23 Apr, 2020
No comments provided
Review #2 received
Received 29 Apr, 2020
Editorial decision: Major revision
On 29 Apr, 2020
Review #1 received
Received 27 Apr, 2020
Reviewer #1 agreed
On 26 Apr, 2020
Reviewer #2 agreed
On 26 Apr, 2020
Editor assigned
On 25 Apr, 2020
Reviewers invited
Invitations sent on 25 Apr, 2020
Editor invited
On 24 Apr, 2020
Submission checks complete
On 19 Apr, 2020
First submitted
On 11 Apr, 2020
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See the published version of this preprint at Bioresources and Bioprocessing.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research
Edwin Andrew Ofudje
Mountain Top University
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at Bioresources and Bioprocessing.
No community comments so far
Reviewer #2 agreed
On 26 May, 2020
Review #2 received
Received 26 May, 2020
Editorial decision: Accept
On 26 May, 2020
Review #1 received
Received 23 May, 2020
Reviewers invited
Invitations sent on 23 May, 2020
Reviewer #1 agreed
On 23 May, 2020
Editor assigned
On 22 May, 2020
Submission checks complete
On 21 May, 2020
Editor invited
On 21 May, 2020
Version 1
Posted 23 Apr, 2020
No comments provided
Review #2 received
Received 29 Apr, 2020
Editorial decision: Major revision
On 29 Apr, 2020
Review #1 received
Received 27 Apr, 2020
Reviewer #1 agreed
On 26 Apr, 2020
Reviewer #2 agreed
On 26 Apr, 2020
Editor assigned
On 25 Apr, 2020
Reviewers invited
Invitations sent on 25 Apr, 2020
Editor invited
On 24 Apr, 2020
Submission checks complete
On 19 Apr, 2020
First submitted
On 11 Apr, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Bioresources and Bioprocessing.
The presence of heavy metals in polluted water is known not only to cause stern harm to marine organisms but also to terrestial plants and animals including human beings. This research applied low-cost and environmental benign adsorbent primed from waste orange peel (OP) in the removal of Cd(II) ions from aqueous solution via the batch process. The surface properties of the orange peel powder was studied using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (XRD) and Fourier transform infrared spectroscopy FT-IR). Operational conditions like temperature, contact time, sorbent dosage, solution pH and initial adsorbate concentration were investigated. The utmost uptake of Cd(II) ion was obtained at the contact time of 120 min, initial metal concentration of 240 mg/L, adsorbent dosage of 0.04 g/L, temperature of 45 °C and solution pH of 5.5 on the adsorption of Cd(II) ion. Equilibrium results showed that the orange peel adsorbent has an adsorption capacity of 27.916 mg/g as obtained from the Langmuir isotherm. The adsorption kinetics data followed a Pseudo-first-order kinetic model with correlation coefficient (R2) > 0.9 and low standard % error values. The adsorption process was found to be spontaneous, feasible and with enthalpy of 0.0046 kJ mol− 1 and entropy of -636.865 Jmol− 1K− 1 respectively. Results from the optimization study indicated that higher adsorbent dosage and lower Cd(II) ion concentration increased the percentage of Cd (II) ion removal. Thus, orange peel could be used in the removal of Cd(II) ion from aqueous solutions.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
The full text of this article is available to read as a PDF.
This is a list of supplementary files associated with this preprint. Click to download.
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