COMPOST COVER RESEARCH & ARTICLES

“Recipe for Success – Composting Integrated into Family Business”.

by Craig Coker. BioCycle October 2009


Using a Backhus 6.75 compost turner (capable of turning windrows 10.8 ft tall x 24.6 ft wide) on a 10 acre composting pad in San Antonio, Texas, New Earth Soils and Compost Inc. processes about 85,000 tons per year of anaerobically digested Class B biosolids along with other feed stocks such as manure and green waste. This facility also uses ComposTex compost covers to help manage windrow moisture and reduce the potential for odors (click here to read the article).



ComposTex Fabric Performance Tested on Sludge Storage Piles

Saturday, March 3rd, 2007


A project directed by Woods End Laboratories for Brunswick Sewer District, seeks to demonstrate the practicality and utility of using fabric covers for winter sludge storage. DEP allows treated sludge to be stored for periods of time before landspreading; however, storage conditions are not always optimal.

Pictured is a pile with the ComposTex(tm) cover, a breathable, UV stabilized "fleece", which – according to Woods End's initial findings – allows sludge to attain at least 15C higher daily temperatures than uncovered material, plus piles are losing – instead of gaining – water during the wet winter with snow and rain.

Brinton's team at Woods End is tracking microbiological effects and VFA changes as the material ages under cover. "If the moisture does not increase as normal, but declines, and aerobic bacteria grow and do not decline, plus the piles stay warmer, you will have a considerably less unpleasant product later in the year", according to Dr. Brinton. The project will run through July 2007, and a final report will be presented. The final results indicated that the fabric performed even better than expected and it has become SOP for the district.




Northern Arizona University (NAU) Composting Pilot Study Research Report

2011-2012 By Patrick Pfeifer, Mark Gallo, and Brian Marbury
April, 2013


The goal of this research project was to test a variety of low-input methods of composting mixed organic materials (e.g. food scraps, yard debris, horse manure, etc.) in Flagstaff, Arizona under site-specific climate conditions and resource limitations while producing a high quality soil amendment for food production. A variety of composting methods/treatments were tested, monitored, and analyzed. ComposTex covers were used to reduce moisture loss
(click here to read the article).



"Covering Composting Windrows: Effects on the Process and the Compost"

Monique Pare. Timothy C. Paulitz. Katrine. S. Stewart.

McGill University

www.p2pays.org/ref/12/11547.pdf

 

Purpose-To test the effects of compost covers on leachate, pathogens, and product quality. Half of the windrows were sheltered with semi-permeable ComposTex compost covers with the remaining piles were uncovered.


Results:

  • Covered composts had higher mineral content in both years.
  • Nitrogen, phosphorus, and potassium levels were significantly higher in the second year.
  • In late fall and early winter, the temperature of the compost decreased more slowly when covered.
  • Covered compost did not freeze as deeply over winter and warmed up faster than uncovered in the spring.
  • Covered compost was drier at the end of the cycle.
  • The quantity of leachate was significantly reduced in the covered.



"Compost Education and Research in Michigan: An Overview of a Statewide Education Program and Dairy Manure Composting Research at Michigan State University"


Dr. Ted Loudon and Andrew Fogiel
Michigan State University
www.oarde.ohio-state.edu/ocamm/loudon.html

"Ongoing research includes synthetic fleece blankets for covering compost. Synthetic covers are used during composting to shed water while permitting gas exchange. These coverings can also be effective in retaining heat during the winter. Air circulation may also improve as heating during the composting process can create a "chimney effect." This convective air transfer can counteract the anaerobic conditions created by the generation of carbon dioxide during decomposition.




"Composting Mass Poultry Mortalities"


Casey W. Ritz, Extension Poultry Scientist
Department of Poultry Science
Northwest Research and Education Center
Calhoun, GA 30703
Office: 706/624-1402;
Fax: 706/624-1404
E-mail: critz@uga.edu
http://pubs.caes.uga.edu/caespubs/pubcd/B1282.htm

When substantial poultry mortality occurs due to disease, chemical residue or natural disaster, on-site composting of the carcasses will effectively process large mortality numbers into an environmentally stable product for land application. Protect open air piles from prolonged contact with rainwater with a covering that repels water, such as composting fleece"



"Can Catastrophic Turkey Mortalities be Composted In-house as a Means of Disposal?"


Eric Bendfeldt, Robert Peer, Gary Flory, Dr. Greg Evanylo, Dr. Lewis Carr, and George Malone
www.midatlanticcompost.org/meetingResources/Bendfeldt.pdf