Article Dans Une Revue Soil Systems Année : 2025

Poultry Manure-Derived Biochar Synthesis, Characterization, and Valorization in Agriculture: Effect of Pyrolysis Temperature and Metal-Salt Modification

Résumé

In the present work, six biochars were produced from the pyrolysis of poultry manure at 400 • C and 600 • C (PM-B-400 and PM-B-600), and their post-modification with, respectively, iron chloride (PM-B-400-Fe and PM-B-600-Fe) and potassium permanganate (PM-B-400-Mn and PM-B-600-Mn). First, these biochars were deeply characterized through the assessment of their particle size distribution, pH, electrical conductivity, pH at pointzero charge, mineral composition, morphological structure, and surface functionality and crystallinity, and then valorized as biofertilizer to grow spring barley at pot-scale for 40 days. Characterization results showed that Fe-and Mn-based nanoparticles were successfully loaded onto the surface of the post-modified biochars, which significantly enhanced their structural and surface chemical properties. Moreover, compared to the control treatment, both raw and post-modified biochars significantly improved the growth parameters of spring barley plants (shoot and root length, biomass weight, and nutrient content). The highest biomass production was obtained for the treatment with PM-B-400-Fe, owing to its enhanced physico-chemical properties and its higher ability in releasing nutrients and immobilizing heavy metals. These results highlight the potential use of Fe-modified poultry manure-derived biochar produced at low temperatures as a sustainable biofertilizer for soil enhancement and crop yield improvement, while addressing manure management issues.

Domaines

Fichier principal
Vignette du fichier
soilsystems-09-00085-1.pdf (3.01 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Licence

Dates et versions

hal-05302861 , version 1 (08-10-2025)

Licence

Identifiants

Citer

Samar Hadroug, Leila El-Bassi, Salah Jellali, Ahmed Amine Azzaz, Mejdi Jeguirim, et al.. Poultry Manure-Derived Biochar Synthesis, Characterization, and Valorization in Agriculture: Effect of Pyrolysis Temperature and Metal-Salt Modification. Soil Systems, 2025, 9 (3), pp.85. ⟨10.3390/soilsystems9030085⟩. ⟨hal-05302861⟩
357 Consultations
41 Téléchargements

Altmetric

Partager

  • More