[labnetwork] Managing HF and BOE containing waste

[Peder Lenvik]

We have a dedicated HF processing bench with a dedicated sink for
collecting HF. The collected HF is pumped into a 55 gal drum and shipped as
Haz waste. We ship 1 drum about every three months.

Looked into a treatment system but it was physically way too large, and we
didn’t have a good place to put it.





*Peder Lenvik*



Sr. Facilities Lead

NanoFab

Electrical and Computer Engineering

E.S.B. Bldg. #225, Room 1109C

University California Santa Barbara, Santa Barbara, Ca. 93106



Cell: (805)698-7461



plenvik at ucsb.edu



http://www.nanotech.ucsb.edu



*From:* labnetwork <labnetwork-bounces at mtl.mit.edu> *On Behalf Of *Joseph
Losby
*Sent:* Wednesday, September 2, 2026 4:41 PM
*To:* Lab Network <labnetwork at mtl.mit.edu>
*Subject:* [labnetwork] Managing HF and BOE containing waste



Dear Labnetwork,

We are evaluating options for managing HF and BOE containing waste and
would appreciate hearing how other facilities handle these streams.

For facilities with an on-site HF neutralization/fluoride-removal system:

   - What manufacturer and treatment process do you use? Does it include
   fluoride precipitation and solids removal?


   - Approximately how much HF/BOE waste do you treat per day or week, and
   at what typical concentrations? If available, total fluoride loading would
   also be helpful.


   - What is the system’s approximate footprint, and does it operate in
   batches or continuously?


   - How much operator attention and maintenance does it require,
   particularly for sludge removal?


   - If you are comfortable sharing, what were the approximate installed
   cost and ongoing operating costs?

For facilities that collect all HF/BOE waste for off-site disposal, I would
also be interested in your approximate volumes and whether you have
evaluated on-site treatment.

Any recommendations, lessons learned, or things you would do differently
would be greatly appreciated. You are welcome to reply directly.

Cheers,

Joe



*Joseph Losby, PhD*

*Manager, qLab Operations*

*Quantum City, Office of the VPR*

*joseph.losby at ucalgary.ca <joseph.losby at ucalgary.ca>*
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