Long Term effect of Biosolid Application to Agriculture Land
Author: Frank Williams, C.
Source: Proceedings of the Water Environment Federation, Residuals and Biosolids Management 2004 , pp. 191-199(9)
Publisher: Water Environment Federation
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.
Document Type: Research Article
Publication date: 2004
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