Phosphates: Pollution, recovery and recycling.

Piers Clark Commercial Director

Thames Water

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RiverCherwell

Banbury

Swindon

Oxford

Reading

Slough

HighWycombe

Guildford

We are the UKWe are the UK’’s largest water and s largest water and sewerage companysewerage company

8.9 million water customers 14.3 million wastewater customers 19,400 miles of water mains 67,400 miles of sewer network

Biggest capital delivery programme in the industry, worth £5bn over five years

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* Point source

* Struvite problem

* Mg2++NH+4+PO3-

4+6H2O MgNH4PO46(H2O)

* Phosphate rich fertiliser

* Close phosphorus loop regionally

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From Pollutant to a Resource

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Securing Phosphorus Supply

Could meet 40% UK fertiliser demand (if recovery at all sites)

Local fertiliser production

Slow release fertiliser

Improved efficiency of fertiliser use

Reduced dependence on “phosphate giants”

Secure supply for us & future generations

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