Morris Forman WTP Alternative Solids Processing Update

August 2003

Final completion was obtained on August 15, 2003. Contractor is concentrating work efforts on completing warranty items and project closeout. Completed the 45-day dryer train reliability demonstration.

Solids Dryer Area – Dryer Trains No. 1, No. 2, No. 3 and No. 4 are in service producing dried pellets. Started burning digester gas in the dryers this summer.

Dewatering Area – The five new Alfa Laval centrifuges are in service.

Digester Area – All four anaerobic digesters are in service and digesting essentially all the primary sludge. The digester flare is in service to burn excess gas produced by the digestion process.

Odor Control – All odor control work is complete and the odors have been greatly reduced by eliminating the largest odor source the Zimpro system; conversion of the existing solids holding tanks to anaerobic digesters; replacement of the 2 solids dewatering centrifuges with 5 new high-solids centrifuges; addition of 4 rotary dryer systems, with each train including a dryer, venturi scrubber for particulate removal, and a thermal oxidizer for odor control.

Digester Gas Flare

View previous updates:

December 2002
June 2002
December 2001
November 2001
September 2001