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Re: RE: glutaraldehyde

It appears you should continue looking for individuals/companies having experience with your situation as the document located at http://www.ofm.uwa.edu.au/ops/enviro/indwaste_brochure.htm states "While small amounts of a wide range of chemical residues may be safely disposed of to the sewerage system, there are many chemicals for which this is not appropriate. Of particular concern are the following compounds which produce toxic vapours, such as cyanide, ammonia, formaldehyde and glutaraldehyde.

David Herb
Technical Assistance Engineer
Pollution Prevention Section
MDEQ - Environmental Assistance Division
2nd Floor Town Center, 333 S. Capitol
P.O. Box 30457
Lansing, MI 48909-7957

Phone: 517-241-8176
Fax: 517-373-3675
Email: herbdw@state.mi.us

Environmental Assistance Center 1-800-662-9278
Visit the MDEQ-EAD Website at: http://www.deq.state.mi.us/ead/

>>> "Illig, Richard" <Illig.Richard@dep.state.pa.us> 08/23 7:41 AM >>>

	Although I have no information about the chemical discussed in your
message I do have a potential alternative to chemical treatment of cooling
water for consideration.
	Electronic treatment:  We have dealt with one company that reports a
savings of over $4000.00 annually on chemical treatments by installing such
a system.  They also reported a very short payback time on the initial
	A second company in our area is installing a similar system but no
reports on their progress are available at this time.
	For more detailed information http://www.pnl.gov/fta/11_non.htm 


-----Original Message-----
From: twyhlidko@eurekawebs.com [mailto:twyhlidko@eurekawebs.com] 
Sent: Tuesday, August 22, 2000 2:26 PM
To: 'CWEA Ind&Haz Waste Committee'; P2 - Western Regional P2 Network
(E-mail); P2Tech Listserv (E-mail)
Subject: glutaraldehyde

Hello everyone. I apologize for cross postings.

One of my local hospitals is considering using an aqueous solution of
glutaraldehyde as a cooling tower biocide.

They intend to discharge the cooling tower "blow-down" (water mixed with the
glutaraldehyde) directly into the sanitary sewer system at a volume of
approximately 360 gallons per day (1/4 gallon per minute on average) with a
glutaraldehyde concentration of approx. 150 ppm in the effluent.

Do any other agencies allow discharge of glutaraldehyde into the sewer
Is glutaraldehyde a problem in the sanitary sewer system?
Is there a less toxic alternative?

I have searched the web for "glutaraldehyde" and for "cooling tower" and got
a lot of interesting information, but nothing about discharges to sewer

As always, any information you can share would be helpful.  Thank
you! -Tracy Wyhlidko

Message sent by: Tracy Wyhlidko, Pretreatment Coordinator, City of Eureka,
4301 Hilfiker Lane, Eureka, CA  95503  Tel: (707) 441-4362, Fax: (707)
441-4366 mailto:twyhlidko@eurekawebs.com