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Published in: Journal of Coatings Technology and Research 2/2022

24-11-2021

Valorization of almond shells’ lignocellulosic microparticles for controlled release urea production: interactive effect of process parameters on longevity and kinetics of nutrient release

Authors: Babar Azeem, Noureddine Elboughdiri, KuZilati KuShaari, Bassem Jamoussi, Djamel Ghernaout, Saad Ghareba, Shahid Raza, Aicha Gasmi

Published in: Journal of Coatings Technology and Research | Issue 2/2022

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Abstract

In this study, almond shell lignocellulosic bio-waste material is utilized as a spray suspension for the production of controlled release urea in a rotary pan coater. For this purpose, the almond shell particles are chemically modified to enhance the spray characteristics and mechanical properties of the coating film. Response surface methodology is employed to investigate the interactive effect of process parameters on time and kinetics of urea release from controlled release product. The FTIR spectrum of the coating suspension vindicates the acetylation of the lignocellulosic particles of almond shells. TGA reveals an enhancement of thermal stability of the chemically modified almond shell particles. The viscosity of spray suspension decreases with increase in temperature and increases with increase in the particle size of the spray suspension. The release experiments indicate that complete urea dissolution took place in a couple of minutes, whereas it took more than 20 h for the 100% release of urea from coated product. The analysis of variance reveals that spray rate is the most influential process parameter among the other studied parameters.

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Metadata
Title
Valorization of almond shells’ lignocellulosic microparticles for controlled release urea production: interactive effect of process parameters on longevity and kinetics of nutrient release
Authors
Babar Azeem
Noureddine Elboughdiri
KuZilati KuShaari
Bassem Jamoussi
Djamel Ghernaout
Saad Ghareba
Shahid Raza
Aicha Gasmi
Publication date
24-11-2021
Publisher
Springer US
Published in
Journal of Coatings Technology and Research / Issue 2/2022
Print ISSN: 1547-0091
Electronic ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-021-00554-1

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