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Summary

This project involved the construction of a new lime and Kalic reception and handling plant, together with renewed dosing systems.

The brief

Our brief also involved refurbishing the rapid gravity filter (RGF), upgrading the lateral floors and providing air scour. We were also commissioned to replace the RGF dirty washwater handling and supernatant recovery systems.

Our response

We introduced a composite low-profile filter floor system that could be installed more easily and more rapidly than conventional filter floors. This saved money in terms of both capital and operational costs, and also benefited the programme schedule.

We also used an innovative design for the dirty washwater handling sludge settlement and supernatant recovery systems. Extensive use was made of existing assets incorporating lamella plate technology.

Key facts

  • We introduced a cost-saving low-profile filter floor system.
  • We used an innovative design for the dirty washwater handling and supernatant recovery systems.
  • We maintained a minimum works output of 135Ml/d.

Project Information

Client: Norwest Holst Construction

Value: 6.5 million