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FW: Composting facility odor



See discussion below.
Steve Hillenbrand
Industrial Waste Reduction Engineer
Process & Prevention Services, Tennessee Valley Authority
(423) 632-8489; (423) 632-3616 (fax)
sjhillenbrand@tva.gov
TVA P&PS HomePage  www.tva.gov/orgs/iwr/iwrhome.htm

> ----------
> From: 	Strickland, Richard C.
> Sent: 	Thursday, September 24, 1998 1:39 PM
> To: 	Phillips, Joseph W.; Jarrett, Marvin N.
> Cc: 	Hillenbrand, Steve; McEntyre, Charles L.
> Subject: 	RE: Composting facility odor
> 
> I think that Marvin is right about the odor being released during the
> tumbling process--most likely the odor is being generated under anaerobic
> storage conditions.  His ideas of turning and aeration would certainly
> help, but it is very difficult to eliminate odors, particularly, during
> the early stages of the composting process.  The following suggestions may
> be useful:
> 
> *	Minimize the storage time between screening and tumbling. If the
> purpose of the tumbling is to mix different materials, it seems beneficial
> to perform the two steps as close together as possible to minimize odors
> and the loss of nutrients.
> *	Try to balance nutrients and C:N by mixing green and brown materials
> before storage.
> *	Consider reducing the height and volume of storage piles to promote
> better natural aeration and reduce pile heating.
> *	Perhaps cover storage piles if excess moisture is contributing to
> odor production.
> *	An aeration system using a blower and perforated pipe could be more
> effective in adding oxygen than turning--also if the air was pulled
> through the pile or windrow, the air could be vented into a compost
> biofilter for odor control.
> *	Possibly a biofilter could be fitted to the tumbling equipment if
> the odor problem can not be resolved with improved processing and handling
> procedures.   
> 
> I hope this is helpful.  Please let me know if you have any questions.
> 
> Richard
> 
> 
> ----------
> From: 	Jarrett, Marvin N.
> Sent: 	Thursday, September 24, 1998 9:57 AM
> To: 	Strickland, Richard C.; Phillips, Joseph W.
> Cc: 	Hillenbrand, Steve; McEntyre, Charles L.
> Subject: 	RE: Composting facility odor
> 
> I think that tumbling is not the odor creator, but the odor releaser. It
> sounds like the storage pile is going anaerobic and either needs to be
> placed in an aerated pile or turned regularly while waiting to be tumbled.
> The light fraction probably contains the leaves which would requires more
> oxygen than the wood chips.  I'd say that they need to do the separation
> after no more than 3 days and then aerate the light fraction regularly to
> keep the pile aerobic to eliminate the odor problem. What's your take
> Richard?
> Marvin N. Jarrett
> Tennessee Valley Authority
> 1101 Market Street, EB 9G
> Chattanooga, Tennessee 37402-2801
> 423-751-7466   Fax: 423-751-8404
> mnjarrett@tva.gov
> 
> 	----------
> 	From: 	Phillips, Joseph W.
> 	Sent: 	Thursday, September 24, 1998 9:01 AM
> 	To: 	Strickland, Richard C.
> 	Cc: 	Hillenbrand, Steve; McEntyre, Charles L.; Jarrett, Marvin N.
> 	Subject: 	FW: Composting facility odor
> 
> 	Richard, Would you have any brief suggestions for reducing the odor.
> You might want to send a brief answer explaining your qualifications to
> help.
> 
> 	----------
> 	From: 	Hillenbrand, Steve
> 	Sent: 	Tuesday, September 22, 1998 5:28 PM
> 	To: 	Charles McEntyre; Joseph Phillips; Marvin Jarrett; Jim
> Mantooth; Jon Loney; Lynn Brown; Peter Scheffler; Ronald Williams
> 	Subject: 	FW: Composting facility odor
> 
> 	FYI.  If you want to reply, please send directly and copy me.
> 
> 	Steve Hillenbrand
> 	Industrial Waste Reduction Engineer
> 	Process & Prevention Services, Tennessee Valley Authority
> 	(423) 632-8489; (423) 632-3616 (fax)
> 	sjhillenbrand@tva.gov
> 	TVA P&PS HomePage  www.tva.gov/orgs/iwr/iwrhome.htm
> 
> 	----------
> 	From: 	Tammy Allen[SMTP:tallen@co.pinellas.fl.us]
> 	Reply To: 	Tammy Allen
> 	Sent: 	Monday, September 21, 1998 3:31 PM
> 	To: 	p2tech@great-lakes.net
> 	Subject: 	Composting facility odor
> 
> 	One of our local municipalities has asked for assistance with odor
> complaints on their yard waste facility.  The process goes as follows:
> 
> 	1. yard waste grinding
> 	2. passed through screening, then may sit several days to weeks
> before next process step
> 	3. Ground material is then placed into a tub tumbler that is 30 ft.
> high in the air and tumbling occurs to drop out all light materials
> (Tumbling is the ODOR creator!)
> 
> 	Any suggestions on how the compost odor could be prevented?
> 
> 	By now, I have posed two odor problems to you from Pinellas County
> in the last week.  You probably think we are pretty odiferous here?  Love
> those hot, humid summers !!!
> 
> 
> 
> 
>