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- | {{Lyon-INSA-ENS/header}}
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- | {{Lyon-INSA-ENS/blocStyle}}
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- | {{INSA-Lyon/styletestaurelie}}
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- | {{Lyon-INSA-ENS/menuhorizontal}}
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- | <html>
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- | <style type="text/css">
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- | .cadre{
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- | text-align:center;
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- | width : 600px;
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- | height:float;
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- | margin-left : 50px ;
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- | border: 4px solid green;
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- | -moz-box-shadow: rgba(0, 0, 0, 0.3) 0px 0px 12px 7px;
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- | }
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- | </style>
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- | <div id="language";>
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- | <img src="https://static.igem.org/mediawiki/2011/0/0e/Drapeau_francais.jpg"; width=20px; /> <a href="/Team:Lyon-INSA-ENS/HomeFr">Version Francaise</a>
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- | </div>
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- | <body>
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- | <!-- Description projet -->
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- | <div class="cadre" ; style="background-color:green;" >
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- | <br/>
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- | <h1 style="color: white;"> A project anchored at the heart of current concerns </h1>
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- | </div>
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- | <p class="contenugrand">
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- | <span style="line-height : 2em">
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- | Environment and risks prevention issues are a major stake in our society. The Rhône-Alpes region has
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- | understood that very early, especially through the importance of its chemical and nuclear activities.
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- | Industrial wastewater treatment permits their reuse in industrial use and improve their quality, enabling
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- | compliance with discharge standards. Various processes are currently implemented to clear the wastewater
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- | from its contaminants (e.g. biological, membrane liquid-solid separation, physical, chemical and thermal
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- | processes). One of them is bioremediation.
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- | It embraces processes that use microorganism metabolism to remove pollutants from a contaminated
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- | environment. This rather new approach, the less expensive to put in place, is especially interesting in the
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- | treatment of poorly contaminated effluents.
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- | <br/> <br/>
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- | However, these microorganisms must respect a few criteria: <br/>
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- | - harmlessness towards the environment and human nature, <br/>
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- | - easiness of cultivation, <br/>
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- | - tolerance to treated pollutant(s), <br/>
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- | - ability to be separated from the treated effluent. <br/>
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- | It is in compliance with this latter requirement that lies our project. In fact, the immobilization of bacteria on
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- | a solid support makes it possible to retrieve more easily the residue in treated wastewater.
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- | The activity of modern nuclear power plants with pressurized water reactors generates radioactive
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- | effluents that contain among other things radioactive cobalt.
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- | The tubing of the cooling circuit is made of a steel alloy rich in stable cobalt (59Co).
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- | Undergoing neutron bombardment coming from the reactor, this stable cobalt
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- | changes into its radioactive isotope, cobalt 60 (60Co).
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- | The capture of this metal is interesting on a sanitary point of view, because it
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- | represents a danger under both its radioactive and stable forms (carcinogenic). It
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- | also represents an advantage on an environmental point of view, in order to avoid
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- | contamination of waters, soil and groundwater. Even with a short half life,
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- | cobalt 60 emits high intensity gamma rays, and decays to nickel, which is stable but
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- | polluting.
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- | <br/> <br/>
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- | Controlled immobilization of radioactive cobalt is both an important sanitary and environmental issue, which
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- | we intend to solve with an innovative and economical response.
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- | </span>
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- | </p>
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- | </body>
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- | </html>
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