Author： Willis John Schafer Perry Switzenbaum Michael
Publisher： Water Environment Federation
ISSN： 1938-6478
Source： Proceedings of the Water Environment Federation, Vol.2005, Iss.5, 2005-01, pp. : 886-903
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Abstract
Since the 40 CFR, Part 503 regulations1 were promulgated in 1993, utilities and engineers have considered thermophilic anaerobic digestion configurations to produce Class A biosolids from municipal wastewater sludges. As thermophilic anaerobic digestion is not listed in the regulation as a process to further reduce pathogens (PFRP) other options have been used in order to achieve Class A biosolids. The most viable options are:
The plants, utilities and private entities described in some detail within this paper include:
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