Authors :
HASSANA Boukar; DESOBGO ZANGUE Steve Carly; NGASSOUM Martin; BARKA Abakoura
Volume/Issue :
Volume 7 - 2022, Issue 8 - August
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3Apr4QH
DOI :
https://doi.org/10.5281/zenodo.7007147
Abstract :
The aim of the study was to produce enriched
Biochar from local materials. The mixture design
enabled to model and optimize the production of a highquality enriched biochar to be used as a bio fertilizer
and/or a pollutant adsorbent. The choice was laid on
three components bearing different attributes. These
include lignocellulosic material (Ayous’ sawdust); a
minerals source material (the clay of Wak) and a
nitrogen source material (chicken manure). The three
responses associated to this study were the pH, the iodine
index and the cation exchange capacity. The
optimization consisted in the inquiry of a maximum
compound desirability. The mathematical model reveals
a quadratic type for all responses. The pH and the cation
exchange capacity were highly influenced by the chicken
manure component, the iodine index by the sawdust
component. The optimization revealed a pH preview
value of 9.25 for desirability of 0.96, an iodine index of
794 m2
.g-1
for a desirability of 0.83, and a cation
exchange capacity of 40.96 cmol+
.kg-1
for the desirability
of 0.97. The global desirability of 0.96 showed that all
components reach a favorable result, hence guaranteed
the use of such biochar as bio fertilizer and/or as
pollutant adsorbent.
Keywords :
Enriched biochar; sawdust; clay, chicken manure; mixture design, optimization.
The aim of the study was to produce enriched
Biochar from local materials. The mixture design
enabled to model and optimize the production of a highquality enriched biochar to be used as a bio fertilizer
and/or a pollutant adsorbent. The choice was laid on
three components bearing different attributes. These
include lignocellulosic material (Ayous’ sawdust); a
minerals source material (the clay of Wak) and a
nitrogen source material (chicken manure). The three
responses associated to this study were the pH, the iodine
index and the cation exchange capacity. The
optimization consisted in the inquiry of a maximum
compound desirability. The mathematical model reveals
a quadratic type for all responses. The pH and the cation
exchange capacity were highly influenced by the chicken
manure component, the iodine index by the sawdust
component. The optimization revealed a pH preview
value of 9.25 for desirability of 0.96, an iodine index of
794 m2
.g-1
for a desirability of 0.83, and a cation
exchange capacity of 40.96 cmol+
.kg-1
for the desirability
of 0.97. The global desirability of 0.96 showed that all
components reach a favorable result, hence guaranteed
the use of such biochar as bio fertilizer and/or as
pollutant adsorbent.
Keywords :
Enriched biochar; sawdust; clay, chicken manure; mixture design, optimization.
