[labnetwork] Electroless Ni waste management?

[Jeff Salzmann]

Tim,

Feel free to contact me directly. I am literally doing this informational work right now, for a production line.

Regards,
Jeff
[cid:image001.png at 01D6FAD2.1AB39060]<http://www.pcb.com/>


Jeff Salzmann
Research and Development Engineering
PCB Piezotronics<http://www.pcb.com/> | 716 684 0002 ext 2907


[cid:image002.jpg at 01D6FAD2.1AB39060]



From: labnetwork-bounces at mtl.mit.edu <labnetwork-bounces at mtl.mit.edu> On Behalf Of Tim Gilheart
Sent: Wednesday, February 3, 2021 16:17
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Electroless Ni waste management?


External Email Notice: This email originated from outside the MTS / PCB organization.


 Greetings all,

The Rice cleanroom team is working with our counterparts in Environmental Health & Safety to identify best practices for managing the waste generated by the electroless nickel plating process our users now need us to support.

This process is based on Transene’s Nickelex product (https://transene.com/ni/), and we do not have a dedicated plating bench. Our users anticipate working with beaker-scale quantities, which our staff team believes we can properly support at our acid bench.

Our EHS colleague is concerned about the amount of Ni in solution the leftover plating bath will generate, and is uncertain if our waste treatment system will be sufficient. Our treatment system treats all our waste water with sodium bicarbonate and treats with NaOH/H2SO4 as needed to meet the pH specs we’ve set.

We’re expecting plating waste to be 1-L per day or less on average, and our wastewater outflow exceeds a thousand gallons per day. We may be close to acceptable Ni levels in the waste stream (2.0 ppm locally) already, just by volume alone, but this is probably not ideal.

I’m sure managing electroless nickel waste is routine for a good number of you on the list, so we’d appreciate any insights you can share.

Thanks in advance!

--
Tim Gilheart, Ph.D.
Research Scientist - Nanofabrication Cleanroom Manager,
Shared Equipment Authority (SEA), Rice University
Cell: 832-341-5488 | Office: 713-348-3159 | gilheart at rice.edu<mailto:gilheart at rice.edu>

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