<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"><meta name="Generator" content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Aptos;}
@font-face
{font-family:"Ink Free";
panose-1:3 8 4 2 0 5 0 0 0 0;}
@font-face
{font-family:"Eras Medium ITC";
panose-1:2 11 6 2 3 5 4 2 8 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:12.0pt;
font-family:"Aptos",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#467886;
text-decoration:underline;}
p.elementtoproof, li.elementtoproof, div.elementtoproof
{mso-style-name:elementtoproof;
margin:0in;
font-size:12.0pt;
font-family:"Aptos",sans-serif;}
span.spanwithbackgroundcolor
{mso-style-name:spanwithbackgroundcolor;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Aptos",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
mso-ligatures:none;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:615411997;
mso-list-template-ids:1292401264;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:"Courier New";
mso-bidi-font-family:"Times New Roman";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style></head><body lang="EN-US" link="#467886" vlink="#96607D" style="word-wrap:break-word"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt">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.</span></p><p class="MsoNormal"><span style="font-size:11.0pt">Looked into a treatment system but it was physically way too large, and we didn’t have a good place to put it. </span></p><p class="MsoNormal"><span style="font-size:11.0pt"> </span></p><div><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt"> </span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:18.0pt;font-family:"Ink Free"">Peder Lenvik</span></b><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif"> </span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif">Sr. Facilities Lead</span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif">NanoFab</span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif">Electrical and Computer Engineering</span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif">E.S.B. Bldg. #225, Room 1109C</span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif">University California Santa Barbara, Santa Barbara, Ca. 93106</span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif"> </span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif">Cell: (805)698-7461</span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif"> </span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif"><a href="mailto:plenvik@ucsb.edu" target="_blank"><span style="color:blue">plenvik@ucsb.edu</span></a></span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif"> </span><span style="mso-ligatures:standardcontextual"></span></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Eras Medium ITC",sans-serif"><a href="http://www.nanotech.ucsb.edu/" target="_blank"><span style="color:blue">http://www.nanotech.ucsb.edu</span></a></span><span style="mso-ligatures:standardcontextual"></span></p></div><p class="MsoNormal"><span style="font-size:11.0pt"> </span></p><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> labnetwork <<a href="mailto:labnetwork-bounces@mtl.mit.edu">labnetwork-bounces@mtl.mit.edu</a>> <b>On Behalf Of </b>Joseph Losby<br><b>Sent:</b> Wednesday, September 2, 2026 4:41 PM<br><b>To:</b> Lab Network <<a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a>><br><b>Subject:</b> [labnetwork] Managing HF and BOE containing waste</span></p></div></div><p class="MsoNormal"> </p><div style="margin-bottom:12.0pt" id="docs-internal-guid-7b5cf7a6-7fff-349a-09dc-bcfdcbb6d62f"><p class="MsoNormal"><span style="font-size:11.0pt;color:black">Dear Labnetwork,</span></p></div><div style="margin-top:12.0pt;margin-bottom:12.0pt"><p class="MsoNormal"><span style="font-size:11.0pt;color:black">We are evaluating options for managing HF and BOE containing waste and would appreciate hearing how other facilities handle these streams.</span></p></div><div style="margin-top:12.0pt;margin-bottom:12.0pt"><p class="MsoNormal"><span style="font-size:11.0pt;color:black">For facilities with an on-site HF neutralization/fluoride-removal system:</span></p></div><div style="margin-top:12.0pt"><ul type="disc"><li class="MsoNormal" style="color:black"><span style="font-size:11.0pt">What manufacturer and treatment process do you use? Does it include fluoride precipitation and solids removal?</span></li></ul></div><div><ul type="disc"><li class="MsoNormal" style="color:black"><span style="font-size:11.0pt">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.</span></li></ul></div><div><ul type="disc"><li class="MsoNormal" style="color:black"><span style="font-size:11.0pt">What is the system’s approximate footprint, and does it operate in batches or continuously?</span></li></ul></div><div><ul type="disc"><li class="MsoNormal" style="color:black"><span style="font-size:11.0pt">How much operator attention and maintenance does it require, particularly for sludge removal?</span></li></ul></div><div style="margin-bottom:12.0pt"><ul type="disc"><li class="MsoNormal" style="color:black"><span style="font-size:11.0pt">If you are comfortable sharing, what were the approximate installed cost and ongoing operating costs?</span></li></ul></div><div style="margin-top:12.0pt;margin-bottom:12.0pt"><p class="MsoNormal"><span style="font-size:11.0pt;color:black">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.</span></p></div><div style="margin-top:12.0pt;margin-bottom:12.0pt"><p class="MsoNormal"><span style="font-size:11.0pt;color:black">Any recommendations, lessons learned, or things you would do differently would be greatly appreciated. You are welcome to reply directly.</span></p></div><p class="MsoNormal"><span style="font-size:11.0pt;color:black">Cheers,</span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:black">Joe</span></p><div id="Signature"><p class="MsoNormal"><span style="font-size:11.0pt;color:black"> </span></p><p class="elementtoproof" style="background:white"><b><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#d6001c">Joseph Losby, PhD</span></b></p><p class="elementtoproof" style="background:white"><span class="spanwithbackgroundcolor"><b><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black;background:white">Manager, qLab Operations</span></b></span></p><p class="elementtoproof" style="background:white"><span class="spanwithbackgroundcolor"><b><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#c82613;background:white">Quantum City, Office of the VPR</span></b></span></p><p class="elementtoproof" style="background:white"><b><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black"><a href="mailto:joseph.losby@ucalgary.ca">joseph.losby@ucalgary.ca</a></span></b></p></div></div></body></html>