<p><img style="width: 100%;" title="Grease separators" src="images/traitements_des_eaux/separateur_graisses/gamme_separateur_graisses.jpg" alt="Grease separators Techneau" /></p>
<h3 style="text-align: left;">Introduction</h3>
<p style="text-align: left; font-family: Arial; font-size: 10pt;"><strong>Grease separators</strong> are used to capture grease present in the effluent, through flotation process.</p>
<p style="text-align: left; font-family: Arial; font-size: 10pt;"><strong>Techneau offers 3 types of grease separators</strong></p>
<ul style="text-align: left; margin-left: 5%;">
<li>
<p style="font-family: Arial; font-size: 10pt;">In rotomoulded polyethylene,</p>
</li>
<li>
<p style="font-family: Arial; font-size: 10pt;">in<strong> stainless steel,</strong></p>
</li>
<li>
<p style="font-family: Arial; font-size: 10pt;"><strong>in polyester.</strong></p>
</li>
</ul>
<h3 style="text-align: left;">Standards NF and CE</h3>
<p style="font-family: Arial; font-size: 10pt; text-align: left;">The <strong>grease separators</strong> are subject to CE marking and should fulfil the conditions set out in ZA Annex of the standard EN 1825-1 and EN 1825-2.</p>
<h3 style="text-align: left;">Opération</h3>
<table style="float: left;">
<tbody>
<tr>
<td class="bloc_50_gris"><img style="width: 100%; margin: 0px;" title="Opération" src="images/traitements_des_eaux/separateur_graisses/separateur_graisses_UK.jpg" alt="separateur graisses UK" /></td>
<td class="bloc_50_gris">
<p style="font-family: Arial; font-size: 10pt;">The working principle is based on:</p>
<ul>
<li>
<p style="font-family: Arial; font-size: 10pt;">The gravity separation of heavy materials ("sludge"),</p>
</li>
<li>
<p style="font-family: Arial; font-size: 10pt;">The flotation of greases</p>
</li>
</ul>
<p style="font-size: 10pt; font-family: Arial;">0.95 density greases rise to the surface while the heavy material density 1 settle to the bottom of the unit.<br /><br /> The contaminated water arrives through the input pipe (1); equipped with a baffle to calm the effluent, thus avoiding mixing and resuspension of settled sludge and grease (2).<br /><br /> The sludge settles in the sludge trap (3) and the buffle (4) traps greases in the unit.</p>
</td>
</tr>
</tbody>
</table>
<h3 style="text-align: left;">Compositions</h3>
<ul style="margin-top: 0cm; text-align: left;">
<li>
<p style="font-family: Arial; font-size: 10pt;"><strong>The sludge : </strong></p>
</li>
</ul>
<p style="font-family: Arial; font-size: 10pt; text-align: left;">This compartment is located upstream of the separation chamber. It is intended to trap heavy matter (sludge).</p>
<ul style="text-align: left;">
<li>
<p style="font-size: 10pt; font-family: Arial;"><strong>The separator</strong></p>
</li>
</ul>
<p style="text-align: left; font-family: arial,helvetica,sans-serif; font-size: 10pt;">The size of the separation chamber must meet the following criteria (as defined in the norm):</p>
<table style="float: left;">
<tbody>
<tr>
<td style="text-align: center; padding: 5px; background: #0063ac; color: white;" colspan="3">
<p style="font-size: 14pt;">Grease separating</p>
</td>
</tr>
<tr>
<td style="width: 32%; text-align: center; padding: 5px; background: #dbdbdb;">
<p style="font-family: Arial; font-size: 10pt;">Minimum area</p>
</td>
<td style="width: 32%; text-align: center; padding: 5px; background: #dbdbdb;">
<p style="font-family: Arial; font-size: 10pt;">Minimum</p>
</td>
<td style="width: 32%; text-align: center; padding: 5px; background: #dbdbdb;">
<p style="font-family: Arial; font-size: 10pt;">Minimum storage<br />volume in m<sup>3</sup></p>
</td>
</tr>
<tr>
<td style="width: 32%; text-align: center; padding: 5px; background: #dbdbdb;">
<p style="font-family: Arial; font-size: 10pt;">0,25 x TN</p>
</td>
<td style="width: 32%; text-align: center; padding: 5px; background: #dbdbdb;">
<p style="font-family: Arial; font-size: 10pt;">0,24 x TN</p>
</td>
<td style="width: 32%; text-align: center; padding: 5px; background: #dbdbdb;">
<p style="font-family: Arial; font-size: 10pt;">0,04 x TN</p>
</td>
</tr>
</tbody>
</table>
<p style="text-align: left; font-family: arial,helvetica,sans-serif; font-size: 10pt;"><img src="images/Pictos/picto_téléchargement_bleu.png" alt="picto téléchargement bleu" /><a style="vertical-align: 17px;" title="Download catalogue grease separator" href="images/catalogues_UK/catalogues_traitements_des_eaux_UK/Catalogue_grease_separators.pdf" target="_self"> Download catalogue grease separator</a></p>
<p style="text-align: left; font-family: arial,helvetica,sans-serif; font-size: 10pt;"><img src="images/Pictos/picto_fleches.png" alt="picto fleches" /><a style="vertical-align: 17px;" title="Starch separators" href="index.php?option=com_content&amp;view=article&amp;id=84:starch-separators&amp;catid=29:contenuuk&amp;Itemid=336"> Recommendation Starch separators</a></p>
<p style="text-align: left; font-family: arial,helvetica,sans-serif; font-size: 10pt;"><img src="images/Pictos/picto_fleches.png" alt="picto fleches" /><a style="vertical-align: 17px;" title="Water treatment" href="en/our-expertise/water-treatment"> Water treatment</a></p>