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<p>Hi all -</p>
<p><br>
</p>
<p>I've previously worked in a lab with duct-exhausted, solid
solvent waste trash cans -- and they're great for user safety and
convenience. However, our Fire Marshall has prohibited them -
because if there's an ignition source in the trash can, the
ventilation system will just serve to fan the flames.</p>
<p><br>
</p>
<p>So, in our labs, we have dedicated waste cans for solid waste
contaminated with standard solvents, most of them metal with a
step lid. These are lined with hazardous waste bags that are
labeled with a list of the standard solvents. We have ziplock
bags at each of the stations where solvents are used. Students
are trained to double-bag their waste under the hood and place in
the solvent waste can, as they clean up their workstation. When
the cans get full, a staffer will collect the hazardous waste bag
for disposal. If students generate solvent waste that is
non-standard, they double-bag in a hazardous waste bag, fill out a
label listing the chemicals, and place the bag in the collection
area. This means we go through a heck of a lot of plastic, but
we're compliant with local policies.</p>
<p><br>
</p>
<p>Mary<br>
</p>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
Mary X. Tang, Ph.D.
Managing Director
Stanford Nanofabrication Facility
Paul G. Allen Building
420 Via Palou Mall
Stanford, CA 94305
<a class="moz-txt-link-freetext" href="https://snf.stanford.edu">https://snf.stanford.edu</a>
<a class="moz-txt-link-abbreviated" href="mailto:mtang@stanford.edu">mtang@stanford.edu</a></pre>
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<div class="moz-cite-prefix">On 9/15/2021 5:50 AM, Michael Yakimov
wrote:<br>
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Somewhat off-topic, but I believe ventilated trash cans would be
classified by EPA as hazardous substance release and would be
against the regulation. Same requirement dictates that
containers in a fume hood are covered when not in actve use.
Don't take my word as final, your EHS may have something to say
though. <br>
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<br>
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Thanks</div>
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<br>
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Mike</div>
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<br>
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<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b>
labnetwork <a class="moz-txt-link-rfc2396E" href="mailto:labnetwork-bounces@mtl.mit.edu"><labnetwork-bounces@mtl.mit.edu></a> on behalf of
Football <a class="moz-txt-link-rfc2396E" href="mailto:yaofootball@gmail.com"><yaofootball@gmail.com></a><br>
<b>Sent:</b> Tuesday, September 14, 2021 4:18 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a>
<a class="moz-txt-link-rfc2396E" href="mailto:labnetwork@mtl.mit.edu"><labnetwork@mtl.mit.edu></a><br>
<b>Subject:</b> [labnetwork] ventilated trash can</font>
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<div class="x_gmail_default" style="font-size:small">Hi All,</div>
<div class="x_gmail_default" style="font-size:small"> </div>
<div class="x_gmail_default" style="font-size:small">I wonder
if you know any vendor who sells metal trash cans for
collecting solid wastes that have photoresist residues, for
example, wipes, pipets and aluminium foils that are used
with spin coaters. There are many vendors for regular metal
trash cans without ventilation ports . How do you collect
those wastes in your cleanroom?<br>
</div>
<div class="x_gmail_default" style="font-size:small"><br>
</div>
<div class="x_gmail_default" style="font-size:small">Thanks!</div>
<div class="x_gmail_default" style="font-size:small"><br>
</div>
<div class="x_gmail_default" style="font-size:small">
<p class="x_MsoNormal" style="margin:0cm; font-size:11pt;
font-family:Calibri,sans-serif">
<a name="x__MailAutoSig" moz-do-not-send="true">Fubo Rao,
Ph.D.,</a></p>
<p class="x_MsoNormal" style="margin:0cm; font-size:11pt;
font-family:Calibri,sans-serif">
Nanofabrication Cleanroom Manager,</p>
<p class="x_MsoNormal" style="margin:0cm; font-size:11pt;
font-family:Calibri,sans-serif">
Center for Nanoscale Materials,</p>
<p class="x_MsoNormal" style="margin:0cm; font-size:11pt;
font-family:Calibri,sans-serif">
Argonne National Laboratory</p>
<p class="x_MsoNormal" style="margin:0cm; font-size:11pt;
font-family:Calibri,sans-serif">
9700 S. Cass Ave, Lemont, IL 60439</p>
<p class="x_MsoNormal" style="margin:0cm; font-size:11pt;
font-family:Calibri,sans-serif">
Phone: 630-252-5708</p>
</div>
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<br>
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