[Terrapreta] sewage sludge charcoal

[Greg and April]

What of the heavy metal and pharmaceutical content that the sewage sludge from many urban locations?

Greg H.

  ----- Original Message ----- 
  From: Michael Antal 
  To: 'Terra Preta' 
  Sent: Tuesday, April 08, 2008 16:44
  Subject: [Terrapreta] sewage sludge charcoal


  I am pleased and somewhat surprised to report that raw sewage sludge is a good feedstock for charcoal production.  Details are available on the HNEI website below.  Regards, Michael.

   

  Michael J. Antal, Jr.

  Coral Industries Distinguished Professor of Renewable Energy Resources

  Hawaii Natural Energy Institute

  POST 109, 1680 East-West Rd.

  Honolulu, HI 96822

   

  phone: 808/956-7267

  fax: 808/956-2336

  www.hnei.hawaii.edu

   



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