Changes

</ul>

</ul>

===Concentrated underground flow===

===Concentrated underground flow===

This type of pretreatement is dominated by proprietary systems, some of which have undergone verification under the [http://etvcanada.ca/| Environmental Technology Verification (ETV)] program.  

This type of pretreatement is dominated by proprietary systems, some of which have undergone verification under the [http://etvcanada.ca/ Environmental Technology Verification (ETV)] program.  

<table class = "table table-striped table-responsive">

<table class = "table table-striped table-responsive">

<caption><strong>Inline pretreatment options</strong></caption>

<caption><strong>Inline pretreatment options</strong></caption>

<td>Baffles slow flow, encouraging larger, heavier particles to drop out of the water column. A skimmer may also trap floating debris, oils and grease. </td>

<td>Baffles slow flow, encouraging larger, heavier particles to drop out of the water column. A skimmer may also trap floating debris, oils and grease. </td>

<td>-</td>

<td>-</td>

<td>[http://upstreamtechnologies.us/products/safl.shtml| SAFL baffle]</td></tr>

<td>[http://upstreamtechnologies.us/products/safl.shtml SAFL baffle]</td></tr>

<tr>

<tr>

<td>Hydrodynamic OGS</td>

<td>Hydrodynamic OGS</td>

<td>The shape causes rapidly flowing water to form a vortex which forces the larger, heavier particles are outwards and downwards into a lower chamber. Floating debris, oils and grease are trapped behind a baffle or in small tank area, towards the top of the main vortex chamber</td>

<td>The shape causes rapidly flowing water to form a vortex which forces the larger, heavier particles are outwards and downwards into a lower chamber. Floating debris, oils and grease are trapped behind a baffle or in small tank area, towards the top of the main vortex chamber</td>

<td>

<td>

[http://www.conteches.com/Products/Stormwater-Management/Treatment/CDS.aspx| CDS]<br>

[http://www.conteches.com/Products/Stormwater-Management/Treatment/CDS.aspx CDS]<br>

[https://www.hydro-int.com/en/products/downstream-defender| Downstream defender]<br>

[https://www.hydro-int.com/en/products/downstream-defender Downstream defender]<br>

[http://nextstorm.ca/sdd/| SDD]

[http://nextstorm.ca/sdd/ SDD]

</td>

</td>

<td> [http://www.imbriumsystems.com/stormwater-treatment-solutions/stormceptor-systems| Stormceptor]</td></tr>

<td> [http://www.imbriumsystems.com/stormwater-treatment-solutions/stormceptor-systems Stormceptor]</td></tr>

<tr><td>Cartridge filters</td>

<tr><td>Cartridge filters</td>

<td>Uses membrane technology adopted from water treatment plants. </td>

<td>Uses membrane technology adopted from water treatment plants. </td>

<td>-</td>

<td>-</td>

<td>[http://www.imbriumsystems.com/stormwater-treatment-solutions/jellyfish-filter| Jellyfish]</td></tr>

<td>[http://www.imbriumsystems.com/stormwater-treatment-solutions/jellyfish-filter Jellyfish]</td></tr>

<tr><td>Catchbasin inserts</td>

<tr><td>Catchbasin inserts</td>

<td>Great for retrofitting situations, to improve water quality</td>

<td>Great for retrofitting situations, to improve water quality</td>

<td>[http://www.cbshield.com/| CB Shield]</td>

<td>[http://www.cbshield.com/ CB Shield]</td>

<td> [http://upstreamtechnologies.us/products/snout.shtml| Snout]</td></tr>

<td> [http://upstreamtechnologies.us/products/snout.shtml Snout]</td></tr>

</table>

</table>

</ul>

</ul>

This article is particularly heavy on proprietary systems and information. Please inform us of any omissions or broken links using the button below:

This article is particularly heavy on proprietary systems and information. Please inform us of any omissions or broken links using the box below:

 

[[category: Pretreatment]]

[[category: Pretreatment]]