Exploring the Adsorption Efficiency of Local Apricot Seed Shell as a Sustainable Sorbent for Nitrate Ion

Locally available apricot seed shell as agro-waste was used for the preparation of adsorbents. The biochar was prepared at 370°C via pyrolysis and 80 mesh particle sizes were modified by 1N HCl. Nitrate adsorption and effect of co-ions from aqueous solution were studied under batch model using apric...

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Bibliographic Details
Published in:Nature environment and pollution technology 2024-09, Vol.23 (3), p.1743-1749
Main Authors: Ishaq, Mohd, Chhipa, R. C., Sharma, Anupama, Ali, Gh, Hussain, Riyaz-ul
Format: Article
Language:English
Subjects:
Activated carbon
Adsorbents
Adsorption
Agricultural wastes
agro-waste, biochar, sorbent, apricot, activated carbon
Apricots
Aqueous solutions
Charcoal
Fourier transforms
Fruits
Ions
Nitrate removal
Nitrates
Pollutants
Potassium
Pyrolysis
Sorbents
Wastewater treatment
Water
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Summary:Locally available apricot seed shell as agro-waste was used for the preparation of adsorbents. The biochar was prepared at 370°C via pyrolysis and 80 mesh particle sizes were modified by 1N HCl. Nitrate adsorption and effect of co-ions from aqueous solution were studied under batch model using apricot seed shell powder (ASSP), apricot seed shell biochar (ASSB), and activated apricot seed shell biochar (AASSB). FTIR and pHPZC measurements were used to characterize the adsorbents. Based on the experimental findings, the optimum conditions follow pH 2, 0.3g dosage, initial concentration of 50 mg.L-1, and contact time of 90 min. The three forms of adsorbent exhibited good adsorption for nitrate. However, the maximum percentage removal of nitrate ions from the aqueous solution followed the order AASSB>ASSB>ASSP. The adsorption kinetic of nitrate ion was best fitted by pseudo 2nd order, and the parameters of adsorption isotherms elucidated favorable and improved sorption. This agro-waste could be used to develop sustainable adsorbents in water and wastewater treatment methods and has great potential to replace commercially available sorbents.
ISSN:2395-3454
0972-6268
2395-3454
DOI:10.46488/NEPT.2024.v23i03.047