| Titre |
Phytoremediation: Synergistic Effect of Thalia geniculata and Crassipes Eichhornia (Water Hyacinth) During Domestic Wastewater Treatment |
| Auteurs |
Yovo Franck [1],
DIMON BIAOU FIDÈLE [2],
SUANON Fidèle [3],
Eni Coffi Azandegbe [4],
Agani Ignace Chabi [5],
Wotto Valentin [6],
|
| Journal: |
Plant |
| Catégorie Journal: |
Internationale |
| Impact factor: |
0 |
| Volume Journal: |
5 |
| DOI: |
10.11648/j.plant.20170501.11 |
| Resume |
The treatment of wastewater and removal of pollutants before discharge into natural water reserves, remain a
major concern of the 21th century. Many of treatment techniques based on phytoremediation present limits regarding the
treatment efficiency. In order to improve the efficiency of nutrients abatement in gray water, the synergy between Thalia
geniculata and Crassipes Eichhornia (water hyacinth) was studied. Three treatments: Thalia geniculata (TG), water hyacinth
(JE) and the combination of the two [Thalia geniculata and water hyacinth, (TJ)] in three different basins have been setup for
the treatment of domestic wastewater. The water physicochemical parameters and nutrients concentrations were determined
during the treatment process. After twelve days of treatment, results revealed a remarkable reduction of pollutants (NO3
-, NTK
and PO4
3-) in the basins TG and JE, with removal efficiencies of (68.62%, 55.71%, 23.55%) and (53.98%; 39.52%; 89.27%),
respectively. As for the treatment combining the two species (TJ), the yield of pollutants abatement was 97.75% for NO3
-,
82.83% for NTK and 24.84% for PO4
3-. An excellent treatment performance of the basin TJ was noticed regarding nitrogen
removal against phosphate (PO4
3-) which was poorly removed. Accordingly, the results indicated an interesting synergistic
effect between TG and JE; with the dominance of the TG tendency to remove nutrient (NO3
-) from wastewater. The observed
synergistic effect of Thalia geniculata and water hyacinth could be effective and promising for the sequestration of nitrogen in
domestic wastewater within a couple of days. However, further studies are still needed to better understand the mechanism
governing the removal of nitrogen to the detriment of phosphate when combining the two species. |
| Mots clés |
Phytoremediation, Domestic Wastewater, Synergy Effect, Pollutants, Thalia geniculata, Eichhornia Crassipes |
| Pages |
1 - 8 |
| Fichier |
 (PDF) |