Re: [GRRN] Gypsum for sewage treatment, composting?

Roger M. Guttentag (
Wed, 24 Mar 1999 07:18:41 -0500

At 08:30 AM 3/22/99 -0600, you wrote:

>I've been asked by a gypsum drywall manufacturer in Scandinavia for

>information on projects that have used gypsum for either sewage

>treatment or in the composting of organics from municipal solid

>waste. Does anyone know of any projects on either of these two areas?

>John Reindl, Recycling Manager

>Dane County, WI


>(608)267-1533 - fax

>(608)267-8815 - phone


Dear John:

I've located information on research that was done several years ago by
the Agricultural Research Service on using scrap gypsum wallboard as a
soil amendment. The web references to this research are provided
and composting#first_hit

In addition, I have provided the web address for the Gypsum Association,
which funded this research, for further follow-up.

If you received information on other beneficial uses of scrap gypsum
wallboard as a result of your query I would appreciate it if it can be
posted online.


Roger M. Guttentag


Read <italic>Recycling in Cyberspace</italic> in Resource Recycling

March 1999 topic - Big City Recycling

April 1999 topic - Conducting searches for multimedia files.