Sommaire
6461-2)…………………………………………………………………………………………………………………………………….……………..65
II.4.3.5. Recherche des staphylocoques selon la norme (NF EN ISO 6888-1) …………………………………………68
Chapitre III : Résultats et discussion
III.1. Les paramètres physico-chi iques ………………………………………………………………………………………………..73
III..... La te pé atu e …………………………………………………………………………………………………………………………...73
III.1.2. Le pote tiel d’hhd ogg e (pHH ………………………………………………………………………………………….……….74
III.1.3. La salinité ….……………………………………………………………………………………………………………………….………..75
III.1.4. L'Oxygène dissous ……………………………………………………………………………………………………………….........76
III.1.5. La Demande biochimique en oxygène DBO5 ……………………………………………………………………………..77
III.1.6. La demande chimique en Oxygène (DCO) ……………………………………………………………………………..…..78
III.1.7. Les matières en suspension (M.E.S) .…………………………………………………………………….………………...…79
III.1.8. Les sels nutritifs ………………………………………………………………………………………………….………….……………80
III.1.8.1.Nitrite et nitrate ……………………………………………………………………………………………………..………..........80
III.1.8.2.Orthophosphate ………………………………………………………………………………………………………….……….…..81
III.1.8.3.Silicium ………………………………………………………………………………………………………….…………………….…….82
III.2.Les pa a t es ic ooiologiques……………………………………….…………………………………………………………..83
III.2.1.Les coliforme………………………………………………………………………………………………………………………..........83
III.2.2.Les streptocoques fécaux …………………………………………………………………………………………………..……….85
III.2.3.Les bactéries sulfitoréductrices ……………………………………………………………………………………………..…...86
III.....Les staphhlocoques ………………………………………………………………………………………………………………..…...87
Conclusion …………………………………………….………………………………………………………………..……………90-91
Biiliog aphie……………………………………………………………………………………..………………….…………………………...93-95
A eees………………………………………………………………………………………………….……….………………..…97-107
6461-2)…………………………………………………………………………………………………………………………………….……………..65
II.4.3.5. Recherche des staphylocoques selon la norme (NF EN ISO 6888-1) …………………………………………68
Chapitre III : Résultats et discussion
III.1. Les paramètres physico-chi iques ………………………………………………………………………………………………..73
III..... La te pé atu e …………………………………………………………………………………………………………………………...73
III.1.2. Le pote tiel d’hhd ogg e (pHH ………………………………………………………………………………………….……….74
III.1.3. La salinité ….……………………………………………………………………………………………………………………….………..75
III.1.4. L'Oxygène dissous ……………………………………………………………………………………………………………….........76
III.1.5. La Demande biochimique en oxygène DBO5 ……………………………………………………………………………..77
III.1.6. La demande chimique en Oxygène (DCO) ……………………………………………………………………………..…..78
III.1.7. Les matières en suspension (M.E.S) .…………………………………………………………………….………………...…79
III.1.8. Les sels nutritifs ………………………………………………………………………………………………….………….……………80
III.1.8.1.Nitrite et nitrate ……………………………………………………………………………………………………..………..........80
III.1.8.2.Orthophosphate ………………………………………………………………………………………………………….……….…..81
III.1.8.3.Silicium ………………………………………………………………………………………………………….…………………….…….82
III.2.Les pa a t es ic ooiologiques……………………………………….…………………………………………………………..83
III.2.1.Les coliforme………………………………………………………………………………………………………………………..........83
III.2.2.Les streptocoques fécaux …………………………………………………………………………………………………..……….85
III.2.3.Les bactéries sulfitoréductrices ……………………………………………………………………………………………..…...86
III.....Les staphhlocoques ………………………………………………………………………………………………………………..…...87
Conclusion …………………………………………….………………………………………………………………..……………90-91
Biiliog aphie……………………………………………………………………………………..………………….…………………………...93-95
A eees………………………………………………………………………………………………….……….………………..…97-107