A Survey of E. coli in UK Sludges

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A survey was undertaken to rapidly assess the effects of different processes on numbers of Escherichia coli in sludges from all parts the U. K All of the processes surveyed reduced the numbers of E. coli . Composting, lime addition and thermal drying reduced numbers to the limit of detection. 90% of reductions were log 6 or greater. Lagooning of sludge was capable of reductions in the order of log 5 Mesophilic Anaerobic Digestion (MAD), the most popular process in the survey, reduced E. coli by, on average, between log 1.4 and 2.3. The one vermiculture site showed results intermediate between MAD and the “advanced” processes.



UKWIR Reference :- 99/SL/06/3Published Date :- 17/04/2002
Retail Price (£) :- 20ISBN :- 1 84057 168 3