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Assessment of organo-mineral fraction during co-composting of sewage sludge-lignocellulosic waste by XRD and FTIR analysis


 
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1. Title Title of document Assessment of organo-mineral fraction during co-composting of sewage sludge-lignocellulosic waste by XRD and FTIR analysis
 
2. Creator Author's name, affiliation, country L. El Fels, M. Zamama, A. Aguelmous, B. El Hayany, G. El Mezouari El Glaoui,; Loubna El Fels, Mohamed Zamama, Mohamed Hafidi L. El Fels, M. Zamama, A. Aguelmous, B. El Hayany, G. El Mezouari El Glaoui, A. Benksim, I. Rahhou, A. Mounir, H. Khajmi, M. Rihani, M. Hafidi; Morocco
 
2. Creator Author's name, affiliation, country A. Benksim, I. Rahhou, A. Mounir, H. Khajmi, M. Rihani, M. Hafidi
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) mineral matrix; thermal treatment; Co-composting; Si-O vibration; sludge pyrolysis; XDR and FT-IR 
 
4. Description Abstract

This investigation focuses mainly on highlighting the contribution of the IR spectrum of the mineral matrix in co-composts after removing the organic phase by slow pyrolysis. The mineral matrix is still confusion subject in the interpretation of FTIR spectra of co-composts. The XRF and XRD analysis of the low pyrolysis substrates of sewage sludge and date palm waste during six months of co-composting, show that the mineral fraction is homogeneous in the samples and that the inorganic matrix consists mainly of silica and carbonates including a residual portion remaining after pyrolysis.

The comparison of FTIR spectra of heated samples at 105°C and 650°C shows that the 3500-3280 cm-1 region characterises essentially the hydroxyl groups OH (ν(OH)) of water molecules. The observed bands in this region provide information on the co-compost hydrophilic nature but can only provide limited information about the humic substances composition. The band at 1035 cm-1, assigned commonly to organic material, which persists after the thermal treatment, should be assigned for the Si-O vibration of silica.
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 19-09-2017
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://revues.imist.ma/index.php/morjchem/article/view/8132
 
10. Identifier Digital Object Identifier (DOI) https://doi.org/10.48317/IMIST.PRSM/morjchem-v5i4.8132
 
11. Source Title; vol., no. (year) Moroccan Journal of Chemistry; Vol 5, No 4 (2017)
 
12. Language English=en en
 
13. Relation Supp. Files
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
15. Rights Copyright and permissions Copyright (c) 2017 Moroccan Journal of Chemistry