MidAtlantic Nutrient Management Handbook

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Mid-Atlantic Nutrient Management Handbook
Chapter 10. Land Application of
Biosolids Gregory K. Evanylo, Virginia Tech
Powerpoint presentation prepared by Kathryn
Haering
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Means and variability of nutrient concentrationsa
in biosolids collected and analyzed in
Pennsylvania between 1993 and 1997 From
Stehouwer, R.C., A.M. Wolf, and W.T. Doty. 2000.
Chemical monitoring of sewage sludge in
Pennsylvania Variability and application
uncertainty. J. Environ. Qual. 291686-1695.
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• Vector Attraction Reduction
• Objective to prevent disease vectors such as
  rodents, birds, and insects from transporting
  pathogens away from the land application site.
• Ten options available to demonstrate that
  land-applied biosolids meet vector attraction
  reduction requirements. Two general approaches
• Reducing the attractiveness of the biosolids to
  vectors with specified organic matter
  decomposition processes (digestion, alkaline
  addition) .
• Preventing vectors from coming into contact with
  the biosolids (biosolids injection or
  incorporation below the soil surface within
  specified time periods).

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