We also helped an automotive solvent recycling facility in
Among other things:
· we were able to recover additional solvent from the still exhausts and still bottom vapors. This decreased indoor VOC concentrations and hence allowed us to reduce the general building exhaust rate while still achieving an improved breathing zone
· we were able to recover additional saleable product from their solvent dehumidification byproduct stream
· we identified opportunities to decrease the energy intensity of their solvent distillation process
Bruce Taylor, P.Eng
Phone: (519) 578-5100
Fax: (519) 669-5002
Enviro-Stewards helped a client of the Toronto Region Sustainability Program significantly reduce its footprint while saving bags of money.
See the description:
Note: this client after implementing the P2 measures was successful in attracting new business from a company that wanted to be associated with clean!
From: firstname.lastname@example.org on behalf of Nancy Larson
Sent: Thu 9/13/2007 4:52 PM
To: email@example.com; 'This is a mailing list for P2 providers in Region 7'
Subject: P2 for solvent reuse and recylcing business
I am working with a client trying to identify opportunities for solvent P2
at his business that is in business to collect used solvent (as a material)
then reuse it to clean drums, distill it and then sell the solvent back to
clients. A continuous-use type of process.
I have recommended a few things which are actually contrary to what they
want to achieve at their business and wonder if any of you had additional
ideas. Here is what I have suggested so far -
Think about how you can
* Change the Process, (use less solvent to clean drums, train
employees and clients, develop an
* Change the Technology, ( distillation efficiency, waste-to-energy
unit like a burner)
* Change the material to minimize your waste. (Less toxic solvents -
offer a line of acetone or alcohols to your clients and keep them separate
from other blends that contain halogens. Maybe a percentage of your clients
would prefer this less toxic cleaner.)
EPA has a nice document at several locations including:
EPA guidance to HWM plans: http://gcisolutions.com/HWFN0993.htm
This is a comprehensive guide to minimization published in 2000:
This one speaks to distillation and energy recovery:
We have a number of documents at
Nancy J. Larson, RS
Director, KSU Pollution Prevention Institute
Small Business Environmental Assistance Program
316/722-7721 ext. 104
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