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RE: RE: bioremediating parts washers


I agree totally that ALL cleaners (and other unknown waste) needs to be
analyzed for the presence of heavy metals and/or solvents which might cause
the material to be classified as hazardous waste.  One of the reasons we
went from a more standard aqueous cleaning setup to the bioremediated type
(SystemOne in our case) was because of heavy metal contamination in the
cleaner.  With the other unit we regularly had waste aqueous cleaner (4-6
times a year) and most of the time it analyzed as hazardous waste.  With the
SystemOne system we have run almost a year without a need to change the
aqueous cleaner.  Even though we suspect heavy metals will be present when
the need occurs (if it ever) to change the aqueous cleaner we have made an
improvement.  We also feel (hope?) that the heavy metals are concentrated in
whatever sludge there is and is not in solution.  This will reduce the waste
amount even more.  I'll try to let everyone know what the results are when
the first waste analysis completed.

If we can somehow get the auto and parts manufacturers to take the lead,
cadmium, chromium, etc. out of their parts the presence of heavy metals in
the cleaners may be a thing of the past.  The aircraft and jet engine
industries are moving this direction with their products mostly due to
pressure from their customers.  Lead, cadmium and chromium are quickly
becoming extinct in these uses.

In addition, awareness of the makeup of aerosol cleaners and lubricants by
repair shop personnel would go a long way in eliminating the possibility of
hazardous solvents in aqueous cleaning units.  There are many good less and
non-hazardous cleaners available which are being successfully used for this
type of cleaning (aerosol and hand wiping) which, when the part is cleaned
in a parts washer, do not transfer hazardous constituents to the parts
washer.  A couple of companies I have experience with are Ecolink and W.R.
Grace.  Both of these companies, and I am sure numerous others, have
"environmentally friendly" products which very effectively replace products
with hazardous constituents.

Although we have made good progress we (waste generators) must still work
hard to get overall awareness to the workers and demand non-hazardous
products from our suppliers.  In the meantime we need to be sure what the
composition of our wastes are before we dispose/treat them.  

> ----------
> From: 	Robert Ludwig[SMTP:RLudwig@dtsc.ca.gov]
> Sent: 	Thursday, May 18, 2000 2:09 PM
> To: 	lhill@des.state.nh.us; frncked@pwwp004.pwfl.com
> Cc: 	P2Tech@great-lakes.net
> Subject: 	Re: RE: bioremediating parts washers
> Just a note regarding the wastes generated from parts washers used in the
> automotive repair industry, whether the units are using mineral spirits or
> water-based cleaners, including the biiological units.
> The major waste constituent/component in spent water-based cleaners (and
> mineral spirit units as well) used in automotive repair shops are heavy
> metals.  In California where the regulations for metals are more stringent
> tha USEPA's,  the metals are what make the spent water-based cleaners a
> hazardous waste.  In a study by Dr. Katy Wolf and Mr. Mike Morris of the
> Institute for Research and Technical Assistance in Santa Monica, 17 shops
> used a variety of water-based cleaning systems and cleaners (including a
> biological-enzyme system) and more than half of the spent water-based
> cleaners were determined to be a hazardous waste. The addition of PERC
> from aerosol cans also contributes to making it even more of a hazardous
> waste.
> Spent water-based cleaners from the biological units used in the test
> shops were also found to be hazardous due to the concentration of metals.
> It may take  a while to concenterate these metals from these units but,
> there is a high probability that the spent water-based cleaners  will be
> considered a hazardous waste due to metals.
> If you would like a copy of the results of IRTA's study, there are number
> of documents available from the California Department of Toxic Substances
> Control's Office of Pollution Prevention and Technology Development.  It
> can also be viewed on DTSC's webpage (under OPPTD's publication section)
> at <www.dtsc.ca.gov>or on the Western Regional Pollution Prevention
> Network webpage at <www.westp2net.org>.
> The following reports/brochures are available:
> #613  Parts Cleaning in Auto Repair Facilities:  the Conversion to Water
> (Executive Summary 4 pages)
> #614  Parts Cleaning in Auto Repair Facilities:  The Conversion to Water
> (80 pages)
> #615  Appendices to Parts Cleaning in Auto Repair Facilities:  Data, data,
> data.
> #616  Switching to Water-Based Cleaners in Repair and Maintenance
> Cleaning:  Two page brochure with info on systems, cleaners, cosets,
> regulatory concerns and FAQs.
> #617  Water-Based Parts Washer Systems:  A Guidance Program for Users
> #618  Water-Based Parts Washer Systems:  Case Study Conversions
> Along these lines of automotive repair, there are three new publications
> from DTSC on the use of water-based cleaning units and formulations for
> automotive brake cleaning operations based on work done by Katy Wolf and
> Mike Morris of IRTA.
> They are:
> #619a Switching to Water-Based Cleaners for Automotive Brake Cleaning :
> Two page brochure with info on systems, cleaners, costs, regulatory
> concerns and FAQs in English.
> #619b Switching to Water-Based Cleaners for Automotive Brake Cleaning :
> Two page brochure with info on systems, cleaners, coses, regulatory
> concerns and FAQs in Spanish
> #620 Brake Cleaning in Auto Repaair Facilities:  the Conversion to Water.
> #621  Seven Case Studies of Brake Shops Using Water (Spanish is side one
> and English on side 2).
> If you would like copies of any of these reports, please let me know via
> e-mail or fax at (916) 327-4494.  If you have any questions about these
> repr please give me a call at 916-324-2659.
> Robert Ludwig
> P.O. Box 806
> Sacramento, CA 95812-0806
> (916) 324-2659 Fax (916) 327-4494
> E-mail:  rludwig@dtsc.ca.gov
> >>> "Francke, Dale H." <frncked@pwfl.com> 05/18/00 09:13AM >>>
> Last fall we bought a parts washer from System One Technologies which has
> the bioremediation type function.  This parts cleaner has been used in our
> fleet management garage (site of ~4,500 people spread over 7,000 acres).
> It
> has been very well accepted and is doing a very good job.  We have
> generated
> no waste to date from this except some samples taken to characterize the
> solution.  Here is the info on System One that I have:
> 	SystemOne Technologies
> 	8305 N.W. 27th St.
> 	Miami, FL  33122
> 	800.711.1414
> 	URL:  http://www.systemonetechnologies.com/ 
> They have a good web site with much information.  They also have a trial
> program where they will provide a test unit for evaluation.  We had ours
> for
> 2-3 months before we purchased.  
> Hope this helps.
> > ----------
> > From: 	Hill, Lin[SMTP:lhill@des.state.nh.us] 
> > Sent: 	Thursday, May 18, 2000 9:37 AM
> > To: 	'P2Tech@great-lakes.net' 
> > Subject: 	bioremediating parts washers
> > 
> > Has anyone tried these types of parts washers? (taken from Pollution
> > Online).
> > Lin Hill, NHPPP, 603-271-2902
> > 
> > Water-based parts cleaning became practical with the introduction of
> > bioremediation: the use of living organisms to turn hazardous materials
> > into
> > harmless components. 
> > Chemists and engineers put microbes to work in an industrial setting by
> > creating a parts washer that combines a powerful cleaning fluid with
> > bioremediating microbes. The fluid lifts grease and dirt from the part
> and
> > flushes it into a reservoir. Here, the microbes, thriving in a tailored
> > environment, digest the grease. The components of the digestion
> > process-CO2
> > and water-evaporate into the air. 
> > Early bioremediating parts washers had their shortcomings. Some
> lubricants
> > were difficult to clean and the bioremediating process sometimes
> produced
> > a
> > barnyard odor. The microbes themselves often succumbed to temperature
> > swings. 
> > Today's state-of-the-art bioremediating parts washer has corrected these
> > problems. New designs combine fluid, filter, pump, heater, and the
> > safe-but
> > voracious-microbes in a closed-loop system that requires little
> > maintenance.
> > Its cleaning efficiency is comparable to parts washers using premium
> > solvents. When used properly, there is nothing to haul or skim. The
> fluid
> > cleans the part, and the microbes clean the fluid. For this reason, the
> > fluid remains at peak efficiency and need never be replaced-just topped
> > off
> > to replace fluid lost to normal evaporation. 
> > The latest generation of surfactant fluids can remove even fifth-wheel
> > grease and other lubricants that defy ordinary water-based cleaners. New
> > strains of robust microbes can thrive in a wide range of temperatures.
> The
> > only maintenance required is the monthly replacement of a filter mat
> that
> > captures particulates and supplies a fresh colony of microbes. Disposal
> of
> > the filter mat usually may be as ordinary solid waste. 
> > Thus is the parts washer once again the simple, easy-to-use,
> > cost-effective
> > machine that does its job with little attention. And at little or no
> cost
> > to
> > the environment. 
> > Contact: ChemFree Corp., Francis Marks, president, 8 Meca WayNorcross,
> GA
> > 30093. Tel: 770-564-5580; Fax: 770-564-5533. 
> > About the author: Francis Marks is president of ChemFree Corp.
> >