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| </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> |
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| <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> |
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| </ul> | | </ul> |
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| 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: |
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| [[category: Pretreatment]] | | [[category: Pretreatment]] |