Thames Water Slow sand filter rig

One tank divided into 10 No. 0.5m2 cells, in two streams, with nozzle floors for SSF media tests. Located outdoors, under a transparent roof.

Type of Facility


  • Pilot facility.
  • Physical rigs.
  • Testing/demonstration facility.



  • Drinking water

Comments: Designed for use with partially treated or reservoir stored lowland water derived from River Thames.

Type of Technologies that can be tested


  • Transforming (treatment).

Availability For Use By Others

Prefer collaborative research with a University, sharing costs.

Cost of Use By Others
To be discussed.

Willingness To Partner
Yes, high. 

Ambitions For Development
Part of a small pilot WTW including coagulation, flotation and filtration.

Mobile Pilot Plants

Other Info
Rebuilding capability that was not required after the initial AMP1&2 advanced water treatment programme.

Services and Capacity

  • Flow rate :
    Up to 0.5 m3/h per cell (1 m/h approach velocity) .
  • Number of test units :
  • Power supply :
    Any up to 440v.
  • Full access to all sizes of plant.

Status of the Facility


  • Future planned facility.
  • Other.

Other: Will be commissioned 2016.

Access to Facility


  • Available to others.

Comments: Prefer collaborative research with a University, sharing costs.

Contact details

Address: Kempton Park Water Treatment Works, Snakey Lane, Feltham, Middlesex, TW13 6XH.


Contact Name: Dr Michael Chipps.

Contact Tel: 07747 640299.

Contact Email: [email protected]

Regulatory issues / constraints

  • No constraints – All discharges go to sewer.



  • Research centre.
  • Private company.

Comments: Home made facility.

Funding Partners

Wholly funded by Thames Water.

Supported by:

hydronation logo                        NERC logo