Traitement des Eaux Usées Industrielles par Phyto-épuration
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La r�utilisation des eaux us�es est un objectif primordial pour l'industrie actuelle. Pour cette raison, la phyto-�puration est largement utilis�e comme �tant un processus efficace, durable et �conomique. Deux stations pilotes, de traitement des eaux, (1) et (2) ont �t� implant�es dans la pr�sente �tude: la station (1) a �t� utilis�e pour le traitement des eaux us�es laiti�res et la station (2) pour le traitement des eaux us�es papeti�re. Pour les eaux laiti�res, une efficacit� d'�limination de 99,6% pour la MES, 80% pour la DCO, 97% pour la DBO, 90,4% pour la TKN et 99,6% pour la TP a �t� obtenue. Pour les eaux us�es papeti�res, la meilleure efficacit� d'�limination obtenue est de 72,8% pour la DBO, 78,9% pour la DCO, 70,8% pour la MES et 63,4% pour la duret� (TH). La r�duction de la MES est en grande partie rendue possible gr�ce aux marais filtrants artificiels � �coulement vertical gr�ce � la filtration de l'eau � travers les substrats, tandis que les marais filtrants � �coulement horizontal contribuent � l'�limination de la mati�re organique par l'action de bact�ries.
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