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Sewage Sludge


I remember there being a big fuss awhile back because school children in a
western state (California?) were infected with E. coli after eating
Mexican-grown strawberries.  It was determined that the strawberries were
fertilized at least partially with human waste, and so that state no longer
will buy from Mexico.  So what is different about sewage sludge?  Is it
treated, heated, or somehow disinfected?  I am not sure that the treatment
received at a sewage plant actually sanitizes sewage completely.  Or does it?


Sheila Smith
mikecook@pipeline.com
Z 5/6



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