[USCC] Biofilter

Sun Aug 3 15:26:05 CDT 2008

Greg:

The optimum configuration for a biofilter depends on the nature of the VOCs
in the exhaust stream.  Some VOCs are more easily metabolized by
microorganisms than others.  I've seen literature references on biofilters
handling VOCs like toluene in the multi-thousand ppm range.

I'd suggest an approach to media selection that focuses on:
a. A gas residence time of 45 - 60 seconds
b. A healthy microbial substrate - high organic matter, adequate moisture,
adequate porosity for aerobic conditions

Most biofilters at composting facilities are a blend of wood chips and
compost, which is not surprising, given they're readily available.  You can
also use the same plastic "wiffle-ball" or plastic saddle media as used in
air emissions scrubbers, which end up being very similar to wastewater
trickling filters.  There are a number of possibilities.

Feel free to give me a call if you'd like to discuss this further.

Thanks,
Craig

-----Original Message-----
From: compost-bounces at mailman.cloudnet.com
[mailto:compost-bounces at mailman.cloudnet.com] On Behalf Of Greg Barron
Sent: Thursday, July 31, 2008 2:32 PM
To: Compost Discussion List
Subject: Re: [USCC] Biofilter

Craig,

>From your experience what types of media have the best ability to reduce
VOC emissions? 

Greg Barron
Compost Facility Supervisor
Inland Empire Regional Composting Authority
909-993-1509 office
909-664-7738 mobile
gbarron at ieua.org 

-----Original Message-----
From: Craig Coker [mailto:craigcoker at cox.net] 
Sent: Monday, July 28, 2008 12:47 PM
To: 'Compost Discussion List'
Subject: Re: [USCC] Biofilter

Gary:

Biofilters can be used to mitigate any type of air emissions that are
amenable to biodegradation.  Volatile Organic Compounds (VOCs) are very
treatable with biofilters.  VOCs are emitted by paint booths, various
industrial sources, wastewater treatment plants and pumping stations,
animal
waste lagoons, and, of course, composting facilities.  I've seen
biofilters
outfitted into 55-gal drums filled with compost to treat paint fumes
from
backyard/garage paint shops.  There are numerous examples of
biofiltration
systems in the literature.

Craig

Craig Coker
Coker Composting & Consulting
3331 Glade Creek Blvd., Ste. 7
Roanoke, VA 24012
Tel.: (540) 904-2698
Fax: (540) 904-6732
Cell: (540) 874-5168
Email: craigcoker at cox.net
Web: www.cokercompost.com

-----Original Message-----
From: compost-bounces at mailman.cloudnet.com
[mailto:compost-bounces at mailman.cloudnet.com] On Behalf Of Gary Bright
Sent: Friday, July 25, 2008 5:44 PM
To: compost at mailman.cloudnet.com
Subject: [USCC] Biofilter

I'm exploring different avenues as to what a bilfilter will do for
various
treatments.  Certainly composting and animals odor problems are great
uses
but what about a welding shop, paint shop, etc.   Does anyone have input
on
other uses?   In order to bring popularity of something that will help
the
composting industry such as the use of biofilters, it seems only
appropriate
that if other uses can be implemented it would become cost effective to
pursue developing more biofilters for many uses which in turn makes it
affordable for all.   Gary..Michigan

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_______________________________________
Join us at the US Composting Council's 17th Annual Conference & Trade Show
January 26-29th, 2009 at the Westin Galleria in Houston, TX.
The National forum for those involved in the development and expansion of
the composting and organics recycling industry.
Conference Highlights, Registration forms, Exhibitor information and
Sponsorship Opportunities available at the USCC website:
www.compostingcouncil.org or call the USCC at 631.737.4931 
____________________________________________________________________________
__
Compost maillist - compost at mailman.cloudnet.com
http://mailman.cloudnet.com/mailman/listinfo/compost
_______________________________________
This list is a service provided by the US Composting Council (USCC).
(c) Copyright 2004 United States Composting Council - All rights reserved

Opinions expressed do not necessarily represent the USCC, the Foundation, or
the Board of Directors.

Non-members of USCC are encouraged to join the Council through its website
at: http://www.compostingcouncil.org/membership.cfm

Members posting CC copies to the list and other addresses may have their
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For additional help in unsubcribing or to report bugs and problems, send a
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