In early 2000, the Louisville and Jefferson County Metropolitan Sewer District successfully culminated its nearly decade-long search for an entirely new, affordable scheme for biosolids management. MSD awarded a design-build contract to replace the low-pressure oxidation (Zimpro thermal
conditioning) system at its Morris Forman wastewater treatment plant with alternative solids processing facilities consisting of anaerobic digestion, mechanical dewatering and thermal drying. The existing thermal conditioning system had ably met MSD's needs for solids mass reduction and
stabilization for many years, but was reaching the end of its useful life and had become a lightning rod for neighborhood activists long concerned about its odors. MSD's Alternatives Solids Project (ASP) is based on a creative processing scheme developed by the Joint Venture of Black
& Veatch Corp. and J.S. Alberici Construction, Inc., which makes maximum utilization of existing infrastructure at the Morris Forman plant to house the new process equipment. The symbiotic coupling of digestion and drying, plus the scale-up of the heat drying technology to unprecedented
levels will result in an up-front savings to MSD of over 25 million, and savings in annual operations and maintenance expenses of up to 4 million.
Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.