Sedimentation tank at a water treatment works

Numéro d’image : 11900469
Sedimentation tank at a water treatment works
Water treatment. View of a sedimentation tank at a water treatment works. Water taken from local rivers is treated with aluminium sulphate & pumped into the sedimentation tanks. A flocculent precip- itate of aluminium hydroxide forms and sinks to the bottom,taking with it fine suspended matter & small algae. The water overflows into slotted collecting troughs (foreground),leaving the sediment behind. It then undergoes slow sand filtration before being chlorinated and fed into the mains supply. The photograph was taken at the Ormesby water treatment works,Norfolk,which supplies the Great Yarmouth area with drinking water taken from the Norfolk Broads
Licence : Droits gérés
Crédit: Science Photo Library / Burgess, Dr. Jeremy
Taille de l’image : 4875 px × 3237 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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