Long Term effect of Biosolid Application to Agriculture Land

C. Frank Williams

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Long Term effect of Biosolid Application to Agriculture Land

Abstract

Tooele, Utah produces Class-A biosolids using the RDP Technologies, Inc. EnVessel Pasteurization™ process. During the process, dewatered cake is fed into a Thermoblender™ where quicklime is added and electric heat is used to elevate the cake temperature to 70c (158°F). The mixture is then deposited into a Pasteurization Vessel where it is held in a plug flow for 30 minutes. The resulting biosolids thus meets the EPA regulations 40 CFR part 503 Alternative 5 for time and temperature. The addition of quicklime elevates the pH level to above 12 for 2 hours and maintains it above 11.5 for an additional 22 hours thus meeting the EPA 40 CFR part 503 Option 6 requirements for Vector Attraction Reduction.

Tooele, Utah produces Class-A biosolids using the RDP Technologies, Inc. EnVessel Pasteurization™ process. During the process, dewatered cake is fed into a Thermoblender™ where quicklime is added and electric heat is used to elevate the cake temperature to 70c (158°F). The mixture is then deposited into a Pasteurization Vessel where it is held in a plug flow for 30 minutes. The...

Author(s)

C. Frank Williams

SourceProceedings of the Water Environment Federation

SubjectSession 3: Rocky Mountain Area Regional Issues

Document typeConference Paper

PublisherWater Environment Federation

Print publication date Jan, 2004

ISSN1938-6478

SICI1938-6478(20040101)2004:1L.191;1-

DOI10.2175/193864704784343162

Volume / Issue2004 / 1

Content sourceResiduals and Biosolids Conference