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RE: Acetone use in Beauty/Nail Salons



Mark,

I would caution against substituting acetone. Acetone is a very aggressive
solvent but with low toxicity. Acetone is also biodegradable so it can be
treated by the POTW. The major concern with acetone is its flammability.
That's why you shouldn't pour pure acetone into a sink. A flammable vapor
will form above the trap and it might ignite.  Since acetone is water
soluble, you should be able to safely dispose of the acetone via a sink as
long as you run the water.  Turn on the water, slowly pour the acetone
directly into the stream, and then continue to run the water until the trap
is cleared. Based on vapor pressure and flammability limits you can
calculate the amount of dilution required for safe disposal.

Mike.callahan@jacobs.com

-----Original Message-----
From: Snyder, Mark [mailto:mark.snyder@moea.state.mn.us]
Sent: Monday, June 19, 2000 10:50 AM
To: 'p2tech'
Subject: Acetone use in Beauty/Nail Salons


I'm curious if anyone has experience with an issue such as described below.
Are there any alternatives to using acetone that anyone knows about?

Mark Snyder
Pollution Prevention Specialist
Minnesota Office of Environmental Assistance
mark.snyder@moea.state.mn.us

> ----------
> From: 	Adam Frederick[SMTP:Adam.Frederick@co.washington.mn.us]
> Sent: 	Monday, June 12, 2000 1:57 PM
> Subject: 	Nail Salons
> 
> Two nail salons have approached me over the last week.  Each has a process
for removing two part acrylic nails with acetone.  The acrylic is a two-part
powder and liquid that is mixed to form a liquid material and is then
painted on the customer's nails.  Later, to remove the acrylic, the customer
soaks their nails and finger tips in pure acetone.  The resulting waste is
acetone contaminated with flakes of dissolved acrylic.  
> 
> Sewering acetone is allowed in small (droplets) amounts.  The amount
involved at the salon is from >  to  cups a customer at most three
customers a week. I have talked to Metropolitan Council Environmental
Services and we have agreed that this may be too large a quantity to sewer.

> 
> These shops are unable to reuse the acetone as a product to remove polish
(my first suggestion) because it is contaminated with the acrylic.  The
quantity generated is around three gallons a year.  One salon is scheduled
to take three gallons to our VSQG collection.   
> 
> Has anyone ever licensed a nail salon?  I know that they would fall under
the minimal generator rules but we have not adopted those here at Washington
County.   
> 
>