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Sand filters with sea water resistant rubber lining

Reference ID: 119250
Industry: Heat and power plants
Application: Boiler water, District heating water, Process water

Avedøre Power Station, owned by DONG Energy A/S, is a combined heat and power plant, located in coastal area south of Copenhagen. In order to reduce the amount of municipal drinking water used as process water, the power station uses desalinated sea water for some of the processes. The sea water is desalinated in RO units using sand filtration as pretreatment. After further polishing, the permeate from the RO units is used mainly as boiler feed water or make-up water for the district heating network. 
Exposed for the tough working conditions, the existing sand filters in structural fiberglass realized a breakdown and needed replacement.
The new sand filters from EUROWATER is made of steel. Inside, the filters are coated with a certified and completely sealed rubber lining. Outside, the filters are treated with a high quality epoxy paint categorized in corrision class C5-I.
Futhermore, the new filter solution should be designed with easy accessibility in order to be user friendly as well as service friendly. Therefore, the complete solution with filters, break tank, pipe system and operating valves is supplied pre-engineered as a frame-mounted solution.

The complete project included design, manufacturing, installation, and commissioning.
 

Technical data

  • Flow: 70 m³/h

Units in plant

  • Sand filters, 3 x TFB 35 with rubber lining inside
  • Blower for backwash
  • Break tank in PP, approx. 5 m³/h
  • Pipe system and valves in PP-H