| Titre |
Flocculation of Kaolinite Suspensions in Water by Coconut Cream Casein |
| Auteurs |
FATOMBI Jacques K. [1],
Mbey Jean-Aimé [2],
AMINOU TAOFIKI WABI [3],
Lartiges Bruno [4],
TOPANOU Nikita [5],
Barres Odile [6],
JOSSE Roger Gérard [7],
|
| Journal: |
Journal of Water Resource and Protection |
| Catégorie Journal: |
Internationale |
| Impact factor: |
0 |
| Volume Journal: |
3 |
| DOI: |
|
| Resume |
The flocculation of kaolinite colloidal particles was carried out at pH = 6 in suspension of initial turbidity
varying between 24 NTU and 102 NTU by a casein extracted from Cocos nuciferacream. During Jar-test
essays, 90% to 99% of colloids were eliminated in the sediments. The optimal doses of casein used depend
on the initial colloids concentrations of the suspension and were found to be 60 mg/L and 100 mg/L respect-
tively for suspensions having turbidity of 24 NTU and 102 NTU. The corresponding residual turbidity are
respectively 2.80 NTU and 10.22 NTU for clarified water.The structural analysis of the freeze-dried sedi-
ments by FTIR shows sharp adsorption bands at 1558 cm
–1
and 1653 cm
–1
, indicating the presence of casein
in the sediment. The flocculation process between the particles of kaolinite and the coconut casein is adsorp-
tion and bridging. |
| Mots clés |
Flocculation, Coconut, Casein, Kaolinite, Turbidity |
| Pages |
918 - 924 |
| Fichier |
(PDF) |