[USCC] calculating compost volume from weight of feedstock

[Glass, Steve J.]

Susan -

The first tab in the attached spreadsheet includes bulk densities for a
wide range of common composting feedstocks, adapted by the NM Organics
Recycling Organization from some data published by Cornell University.
Dividing the weight (in pounds) of a feedstock by its bulk density (in
pounds per cubic yard) yields an estimate of the volume (in cubic yards.

The other tabs in the spreadsheet contain compost mixture calculators
developed by Cornell and by NMORO.  The NMORO mixture calculator
predicts the initial volume of the proposed compost mixture.  During the
composting process, one can expect to lose 10-30% of the initial volume,
so the final volume can be estimated.

Hope this helps.

Steve Glass
NMORO


-----Original Message-----
From: compost-bounces at mailman.cloudnet.com
[mailto:compost-bounces at mailman.cloudnet.com] On Behalf Of
McLaughlin.Susan at epamail.epa.gov
Sent: Monday, November 24, 2008 3:17 PM
To: compost at mailman.cloudnet.com
Subject: [USCC] calculating compost volume from weight of feedstock

Hi.  I received an inquiry asking how someone can, using as inputs the
WEIGHT of certain types of organic wastes, calculate in cubic YARDAGE
the amount of compost that would result for those different types of
waste.

Can you help?  Are there generalizations, tools, or research out there
that I can lead him to?

Thank you!

Susan McLaughlin
Office of Solid Waste
US EPA

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