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Abiotec process

Simple, efficient and non-hazardous

When water meets light…

UV sources amplify the natural phenomenon

The Sun has a cleaning effect due to the emission of invisible light: ultraviolet (UV).

This natural phenomenon is reproduced and amplified by our powerful ultraviolet emission sources.

The DNA and some elements of micro-organisms (viruses, bacteria, yeasts, moulds, etc.) are damaged by UV wavelengths (200 to 315 nanometres). This blocks replication of the genetic material and prevents a micro-organism surviving and multiplying.

All the germs may be disabled, even though they do not all have the same UV sensitivity.

In addition to disinfection, UV treatment has other applications:

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destruction of chloramines

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destroying ozone

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photo-oxidation of Total Organic Carbon (TOC)

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dechlorination

The advantages of UV sources over other methods of disinfection (source: French water agency) :

<table><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <th></th><!-- [et_pb_line_break_holder] --> <th>Chlorination</th><!-- [et_pb_line_break_holder] --> <th>Ozone</th><!-- [et_pb_line_break_holder] --> <th>UV</th><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Cost</td><!-- [et_pb_line_break_holder] --> <td><strong>low</strong></td><!-- [et_pb_line_break_holder] --> <td>high</td><!-- [et_pb_line_break_holder] --> <td>moderate</td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Equipment reliability</td><!-- [et_pb_line_break_holder] --> <td><strong>good</strong></td><!-- [et_pb_line_break_holder] --> <td>quite good</td><!-- [et_pb_line_break_holder] --> <td>quite good</td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Regulation</td><!-- [et_pb_line_break_holder] --> <td><strong>yes</strong></td><!-- [et_pb_line_break_holder] --> <td>at design stage</td><!-- [et_pb_line_break_holder] --> <td><strong>yes</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Sensitivity to maintenance</td><!-- [et_pb_line_break_holder] --> <td><strong>low</strong></td><!-- [et_pb_line_break_holder] --> <td>high</td><!-- [et_pb_line_break_holder] --> <td>high</td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Technical complexity</td><!-- [et_pb_line_break_holder] --> <td><strong>simple</strong></td><!-- [et_pb_line_break_holder] --> <td>complex</td><!-- [et_pb_line_break_holder] --> <td><strong>simple<strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Bactericidal power</td><!-- [et_pb_line_break_holder] --> <td><strong>good</strong></td><!-- [et_pb_line_break_holder] --> <td><strong>good</strong></td><!-- [et_pb_line_break_holder] --> <td><strong>good</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Virucidal power</td><!-- [et_pb_line_break_holder] --> <td>low</td><!-- [et_pb_line_break_holder] --> <td><strong>good</strong></td><!-- [et_pb_line_break_holder] --> <td><strong>good</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Safety problem</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td><strong>no</strong></td><!-- [et_pb_line_break_holder] --> <td><strong>no</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Transport problem</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td><strong>no</strong></td><!-- [et_pb_line_break_holder] --> <td><strong>no</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Fish toxicity</td><!-- [et_pb_line_break_holder] --> <td>toxic</td><!-- [et_pb_line_break_holder] --> <td>non-toxic ?</td><!-- [et_pb_line_break_holder] --> <td><strong>non-toxic</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>By-products</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td><strong>no</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Residual persistence</td><!-- [et_pb_line_break_holder] --> <td><strong>long</strong></td><!-- [et_pb_line_break_holder] --> <td>no</td><!-- [et_pb_line_break_holder] --> <td>no</td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Contact time</td><!-- [et_pb_line_break_holder] --> <td>long</td><!-- [et_pb_line_break_holder] --> <td>moderate</td><!-- [et_pb_line_break_holder] --> <td><strong>short</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Increases dissolved O2</td><!-- [et_pb_line_break_holder] --> <td>no</td><!-- [et_pb_line_break_holder] --> <td><strong>yes</strong></td><!-- [et_pb_line_break_holder] --> <td>no</td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Reacts with ammonia</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td><strong>no</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Discolouration power</td><!-- [et_pb_line_break_holder] --> <td>moderate</td><!-- [et_pb_line_break_holder] --> <td><strong>yes</strong></td><!-- [et_pb_line_break_holder] --> <td>no</td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>pH dependency</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td>slight</td><!-- [et_pb_line_break_holder] --> <td><strong>no</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td>Corrosiveness</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td>yes</td><!-- [et_pb_line_break_holder] --> <td><strong>no</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --> <tr><!-- [et_pb_line_break_holder] --> <td><strong>TOTAL STRENGTHS</strong></td><!-- [et_pb_line_break_holder] --> <td><strong>7</strong></td><!-- [et_pb_line_break_holder] --> <td><strong>6</strong></td><!-- [et_pb_line_break_holder] --> <td><strong>12</strong></td><!-- [et_pb_line_break_holder] --> </tr><!-- [et_pb_line_break_holder] --></table>