[labnetwork] ventilated trash can

[Mary Tang]

Hi all -


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.


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.


Mary


-- 
Mary X. Tang, Ph.D.
Managing Director
Stanford Nanofabrication Facility
Paul G. Allen Building
420 Via Palou Mall
Stanford, CA 94305
https://snf.stanford.edu
mtang at stanford.edu


On 9/15/2021 5:50 AM, Michael Yakimov wrote:
> 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.
>
> Thanks
>
> Mike
>
>
> ------------------------------------------------------------------------
> *From:* labnetwork <labnetwork-bounces at mtl.mit.edu> on behalf of 
> Football <yaofootball at gmail.com>
> *Sent:* Tuesday, September 14, 2021 4:18 PM
> *To:* labnetwork at mtl.mit.edu <labnetwork at mtl.mit.edu>
> *Subject:* [labnetwork] ventilated trash can
> Hi All,
> 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?
>
> Thanks!
>
> Fubo Rao, Ph.D.,
>
> Nanofabrication Cleanroom Manager,
>
> Center for Nanoscale Materials,
>
> Argonne National Laboratory
>
> 9700 S. Cass Ave, Lemont, IL 60439
>
> Phone: 630-252-5708
>
>
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