Current Tender

Tender 0510025036

Cleaning and Dewatering of Digesters and Lagoons

  • Date advertised:
    04 December 2014
  • Closing date:
    12 February 2015
  • Cleaning and Dewatering of Digesters and Lagoons

    Tender closing: Thursday 12 February 2015 at 9:30am

    Contact: Brett Simpson

    Tel: 8849 5325


    Cost of document: $70.00 (non-refundable)

    The tender documents are available for purchase and downloading from Sydney Water''s nominated website

    Background Summary

    Aerobic and anaerobic digestion is a vital process at 19 of Sydney Water’s sewage treatment plants.

    Digester operation impacts a plant’s ability to efficiently process waste in order to meet its NSW Office of Environment and Heritage operating licence conditions.

    The scope of services to be included in this tender include the tasks associated with the emptying and cleaning of a nominated digester tank, and the dewatering, removal and disposal of the waste materials at approved sites. Lagoon cleaning involves the pumping out and dewatering of sludge contained in the lagoons, and the removal and disposal of the waste materials at approved sites. The duration of the contract will be determined based on tender proposals which will include consideration of technical, commercial and capital investment.

    Although the definite number of digester and lagoons requiring cleaning will vary based on operational and performance requirements, it is anticipated that the demand will be for 2-5 digesters and a minimum of 5 lagoons per year over the lifetime of the contract.

    Sydney Water is interested in exploring new and alternative ways of carrying out these services and we encourage suppliers who may not have direct experience in this area but have similar skillsets in relative areas to participate in the process