Proceedings

NBS and Reactive media for Phosphorus removal at Severn Trent as part of our rural strategy: characterisation, assessment, deployment: PRESENTATION ONLY

Palmer, M., Sousa, J., Smith, R.A., Richards, A., Pitt, S., Severn Trent, UK

(free)

WHAT WE WILL COVER
• What is reactive media
• AquaNes Programme Trials – Packington
• Severn Trent’s Characterisation Trials – Spernal
• Full scale deployment lessons
• Lookahead

WHAT IS REACTIVE MEDIA
• Passive technology for Phosphorus removal
• Small scale
• Contact process – Adsorption, precipitation, crystallisation
• Treated effluent through a bed of selected material
• Specific depth and contact time
• Natural occurring rocks and minerals Apatite, zeolite
• Industrial by-products Steel slag, fly ash
• Engineered media Phoslock, Polonite
• Materials replenished / regenerated once saturated

 

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