Difference between revisions of "Settling chamber surface area"
m |
m |
||
| Line 1: | Line 1: | ||
| − | <font size=3>''' | + | <font size=3>'''Settling chamber surface area for sand filters and perimeter sand filters'''.</font size><br> |
Link to this [[Settling chamber surface area|table]] | Link to this [[Settling chamber surface area|table]] | ||
<table class="sortable"> | <table class="sortable"> | ||
| Line 13: | Line 13: | ||
<td rowspan=2>Impervious</td> | <td rowspan=2>Impervious</td> | ||
<td>≥ 75%</td> | <td>≥ 75%</td> | ||
| − | <td>(0.25 V<sub>wq</sub>)/D<sub>max</sub></td> | + | <td>(0.25 V<sub>wq</sub>) / D<sub>max</sub></td> |
| − | <td>(0.25 V<sub>wq</sub>)/D<sub>max</sub></td> | + | <td>(0.25 V<sub>wq</sub>) / D<sub>max</sub></td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>< 75%</td> | <td>< 75%</td> | ||
| − | <td>(0.25 V<sub>wq</sub>)/D<sub>max</sub></td> | + | <td>(0.25 V<sub>wq</sub>) / D<sub>max</sub></td> |
<td>0.066 V<sub>wq</sub></td> | <td>0.066 V<sub>wq</sub></td> | ||
</tr> | </tr> | ||
| Line 32: | Line 32: | ||
<td rowspan=2>Impervious</td> | <td rowspan=2>Impervious</td> | ||
<td>≥ 75%</td> | <td>≥ 75%</td> | ||
| − | <td>(0.5 V<sub>wq</sub>)/D<sub>max</sub></td> | + | <td>(0.5 V<sub>wq</sub>) / D<sub>max</sub></td> |
| − | <td>(0.5 V<sub>wq</sub>)/D<sub>max</sub></td> | + | <td>(0.5 V<sub>wq</sub>) / D<sub>max</sub></td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>< 75%</td> | <td>< 75%</td> | ||
| − | <td>(0.25 V<sub>wq</sub>)/D<sub>max</sub></td> | + | <td>(0.25 V<sub>wq</sub>)/ D<sub>max</sub></td> |
<td>0.066 V<sub>wq</sub></td> | <td>0.066 V<sub>wq</sub></td> | ||
</tr> | </tr> | ||
</table> | </table> | ||
[[category:table]] | [[category:table]] | ||
Revision as of 19:40, 18 March 2013
Settling chamber surface area for sand filters and perimeter sand filters.
Link to this table
| Maximum Ponding Depth (feet) | ||||
|---|---|---|---|---|
| Impervious | ≥ 75% | (0.25 Vwq) / Dmax | (0.25 Vwq) / Dmax | |
| < 75% | (0.25 Vwq) / Dmax | 0.066 Vwq | ||
| Perimeter Sand Filter | Maximum Ponding Depth (feet) | |||
| <7.5 | 8 to 10 | |||
| Impervious | ≥ 75% | (0.5 Vwq) / Dmax | (0.5 Vwq) / Dmax | |
| < 75% | (0.25 Vwq)/ Dmax | 0.066 Vwq | ||