2005
DOI: 10.7202/705292ar
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Variations saisonnières des formes de phosphores dans une station de traitement des eaux usées par lagunage, sous climat aride de Marrakech (Maroc)

Abstract: L'objectif de ce travail est d'étudier dans un premier temps la dynamique du phosphore dans un système de traitement d 'eaux usées par lagunage facultatif, en relation avec les compartiments biologiques: phytoplancton, zooplancton et bactéries, dans un deuxième temps, d'évaluer, sous les conditions du climat aride, les performances épuratoires de ce système en ce qui concerne les formes du phosphore. Un intérêt particulier est porté au phénomène du relargage du phosphore par les sédiments. Les résul… Show more

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Cited by 4 publications
(2 citation statements)
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References 20 publications
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“…Given their position, these results show that pastoral activities are an important source of phosphate pollution. These results are similar to those obtained by [28] on untreated wastewater from Marrakech in Morocco, and to those obtained by [29] on raw wastewater treated by high efficiency lagooning. Finally, the results obtained on river water, with regard to phosphate content, are similar to those obtained by [15] on Lake Dang.…”
Section: Ortho-phosphate and Sulphate Levelssupporting
confidence: 91%
“…Given their position, these results show that pastoral activities are an important source of phosphate pollution. These results are similar to those obtained by [28] on untreated wastewater from Marrakech in Morocco, and to those obtained by [29] on raw wastewater treated by high efficiency lagooning. Finally, the results obtained on river water, with regard to phosphate content, are similar to those obtained by [15] on Lake Dang.…”
Section: Ortho-phosphate and Sulphate Levelssupporting
confidence: 91%
“…According to our study we noticed that the pH of the treated water higher than that of the raw water, this is what we can justify by photosynthesis, consume the dissolved CO 2 in the water resulting in alkalization, according to Eq. 5 below [18].…”
Section: Ph Evolutionmentioning
confidence: 99%