33 lines
4.7 KiB
HTML
33 lines
4.7 KiB
HTML
|
<!doctype html><html class=no-js lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="ie=edge"><meta name=viewport content="width=device-width,initial-scale=1"><title>Measuring Diffusion of Trichlorethylene Breakdown Products in Polyvinylalginate - MillironX</title><link href="https://millironx.com/css/bundle.min.d68b6135772e7077b2931ddcfac9fc4cdb0643d18a59b24d9311ef9e5196126a.css" rel=stylesheet></head><body><div class=container-fluid><div class="row wrapper min-vh-100 flex-column flex-sm-row"><aside class="col-12 col-md-3 p-0 bg-dark flex-shrink-1"><nav class="navbar navbar-expand-md navbar-dark bg-dark align-items-start flex-md-column flex-row"><div class=container-fluid><a class="navbar-brand d-block d-md-none" href=#><object class="d-inline-block align-text-top" width=80 height=24 style=filter:invert(100%) data=https://millironx.com/graphics/millironx.svg>
|
|||
|
|
<img src=https://millironx.com/graphics/millironx.svg alt="Milliron X"></object>
|
|||
|
|
 
|
|||
|
|
<span class="font-small-caps font-serif">Milliron X</span></a>
|
|||
|
|
<a href class=navbar-toggler data-bs-toggle=collapse data-bs-target=.sidebar><span class=navbar-toggler-icon></span></a><div class="collapse navbar-collapse sidebar"><ul class="flex-column navbar-nav w-100 justify-content-between"><li class=nav-item><a class="nav-link pl-0" href=/><i class="fad fa-home fa-fw"></i>
|
|||
|
|
<span>Home</span></a></li><li class=nav-item><a class="nav-link pl-0" href=/contact><i class="fad fa-file-signature fa-fw"></i>
|
|||
|
|
<span>Contact</span></a></li><li class=nav-item><a class="nav-link pl-0" href=/academia><i class="fad fa-university fa-fw"></i>
|
|||
|
|
<span>Academia</span></a></li><li class=nav-item><a class="nav-link pl-0" href=/ai><i class="fax fa-bull-sperm"></i>
|
|||
|
|
<span>Artificial Insemination</span></a></li><li class=nav-item><a class="nav-link pl-0" href=/videos><i class="fad fa-video fa-fw"></i>
|
|||
|
|
<span>Videos</span></a></li><li class=nav-item><a class="nav-link pl-0" href=/websites><i class="fad fa-browser fa-fw"></i>
|
|||
|
|
<span>Websites</span></a></li></ul></div></div></nav></aside><main class="col bg-faded py-3 gx-0"><div class=container><header class="d-none d-sm-none d-md-block text-center"><h1 class="font-serif font-small-caps"><object data=https://millironx.com/graphics/millironx.svg>
|
|||
|
|
<img src=https://millironx.com/graphics/millironx.svg alt="Milliron X"></object>
|
|||
|
|
  Milliron X</h1></header></div><section class="container-fluid list-main"><div class="container px-5"><h5>AIChE Annual Meeting: Pittsburgh, Pennsylvania</h5><h2>Measuring Diffusion of Trichlorethylene Breakdown Products in Polyvinylalginate</h2><h3><small><ul class=list-inline><li class=list-inline-item>Thomas A. Christensen II</li><li class=list-inline-item>Samuel R. Wolfe</li><li class=list-inline-item>Jonathan Counts</li><li class=list-inline-item>Mark F. Roll</li><li class=list-inline-item>Kristopher V. Waynant</li><li class=list-inline-item>James G. Moberly</li></ul></small></h3><h4>October 29, 2018</h4><p>Trichloroethylene (TCE), a toxic and carcinogenic contaminant, presents unique
|
|||
|
|
challenges for cleanup because of its water solubility, density, and volatility.
|
|||
|
|
Bioremediation of TCE is a promising cleanup method; however, metabolism of TCE
|
|||
|
|
results in acid generation that inhibits remediating microorganisms. Calcium
|
|||
|
|
alginate(CA)-polyvinylalcohol (PVA) hydrogels show promise for protecting
|
|||
|
|
remediating microbes, however diffusion of TCE or its byproducts through these
|
|||
|
|
polymers is unknown. To measure the effective diffusion coefficient of TCE and
|
|||
|
|
byproducts through hydrogel membranes, we used a modified diaphragm cell.
|
|||
|
|
Measured effective diffusion coefficient of each species was (cm <sup>2</sup>
|
|||
|
|
/s
|
|||
|
|
× 10<sup>6</sup>
|
|||
|
|
): 14.0 ± 1.91 for H<sup>+</sup>
|
|||
|
|
ions, 12.4 ± 1.64 for TCE,
|
|||
|
|
7.83 ± 0.54 for cis-1,2-dichloroethylene (DCE), and 4.68 ± 4.14 for vinyl
|
|||
|
|
chloride. These results aid in engineering biobeads and suggest that CA-PVA
|
|||
|
|
hydrogel blends are effective in slowing diffusion of protons, buffering acids
|
|||
|
|
produced by trichloroethylene metabolism, and remains suitable for encapsulation
|
|||
|
|
of microorganisms involved in bioremediation.</p><div class="card border-dark m-3 p-3"><a href=/academia/pva-aiche/measuring_diffusion_of_trichloroethylene.pdf>/academia/pva-aiche/measuring_diffusion_of_trichloroethylene.pdf</a>
|
|||
|
|
<iframe src=/academia/pva-aiche/measuring_diffusion_of_trichloroethylene.pdf style=width:100%;height:75vh></iframe></div></div></section></main></div></div><script src=https://millironx.com/js/fontawesome.min.aaac087effe105b2021e36c0792fad5ba9e850de51c098f2e6db8ff3e29f8d01.js></script>
|
|||
|
|
<script src=https://millironx.com/js/jquery-bundle.2441e5a247357db17ad1c93e111c8691df9a20704f239054997cb71beeda1a4b.js></script>
|
|||
|
|
<script src=https://millironx.com/js/bootstrap-bundle.ee55eb3d070edbafaf27db8471c6bb76a0851660b6a17c19cf50d8b0c9f53102.js></script></body></html>
|