From:
Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject:
Re: [DCHAS-L] Waste treatment question
Date:
Sep 11, 2023 21:38 UTC
Reply-To:
ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID:
<1637900188.12801.1694468336991**At_Symbol_Here**mail.yahoo.com>
In-Reply-To:
<CAEwQnqg_bfANnC0t9S4tgp3hUe9oKc1tOdGDTYeXE5C0D=ppPw**At_Symbol_Here**mail.gmail.com>
The two solutions are of Aluminum sulfate and hydrated lime. So the lime would be the one that needs the eye wash. The cause the acrylic emulsion to break and coagulate.
However, they are telling people to throw the solids into the ordinary trash and pour the liquid down the drain. Doesn't that imply that the waste is now "safe" to dispose of as non-regulated and the process is technically treatment?
Monona
On Monday, September 11, 2023 at 03:49:58 PM EDT, Jeffrey Lewin <jclewin**At_Symbol_Here**mtu.edu> wrote:
I'm guessing you are referring to
Golden Crash Paint Solids Waste Water Cleaning System
For others reading this, you can see how it works on their
YouTube video
I also found the SDS's for the SDS of solution 1 and the neutralizing solution.
SDS for Crash Solution 1 and Neutralizer Solution 2
Some thoughts:
They are selling it as a paint solids solidifying agent; they make no claims about it eliminating hazardous waste components. If they did, it would be "treatment."
For paint solutions that don't exhibit a hazardous waste profile (either from testing or knowledge) it seems like a slick way of processing the paint solutions.
For paint solutions that exhibited a hazardous waste profile, you now have solids and/or liquids that are still hazardous waste and need to be disposed of as such.
A couple of other observations, Crash solution 1 has an acidic pH and the Neutralizer solution has a basic pH - both list corrosive eye hazards of 2A and when using either one of them you would need an eyewash available.
You also would need to pH the final liquid solution to determine if it meets the pH requirements of the local sewer ordinance.
And, note that the solids, when put into the trash, can't have any "free liquids." By definition, any liquid dripping through their filter paper would be considered "free liquids."
Finally, note your State's waste disposal rules or local drain and solid waste disposal rules may be more strict and/or simply prohibit disposal of these items.
Jeff
I need some advice.
I was just blown away by a product used in the art schools now. It is for disposing of liquid waste from acrylic paints. Be aware, that some of these paint pigments contain regulated metals such as cadmium, chrome VI, and more. There are also benzidine pigments and a lot of azo organics.
The product is designed to eliminate toxic waste from these paints. Since these are acrylics, the waste consists of water and acrylic paint. The instructions are to use a special bottle, that can deliver measured amounts of two different chemicals, and add each separately with stirring and settling time until there is clear water and schmutz at the bottom. There is filter paper and a colander so you can filter out the schmutz and throw it in your trash and then pour the clear water down the drain.
Sounds like waste treatment to me. Wadda all'y'all think?
Monona
M. Rossol
ACTS
181 Thompson St., #23
New York NY 10012
-- Jeff Lewin
Director of Chemical Laboratory Operations
Research Integrity Office
Laboratory Operations
205 Lakeshore Center
Michigan Technological University
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