Difference between revisions of "Comparative BMP phosphorus removal"
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| − | General summary of comparative BMP phosphorus removal performance<sup>a,e,f</sup> | + | <font size=3>'''General summary of comparative BMP phosphorus removal performance<sup>a,e,f</sup>'''</font size><br> |
| − | + | Link to this [[Comparative BMP phosphorus removal|table]] | |
<table class="sortable" border=2> | <table class="sortable" border=2> | ||
<tr> | <tr> | ||
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</table> | </table> | ||
| − | <sup> | + | <font size=1> |
| − | a | + | <sup>a</sup> Removal rates shown in table are a composite of five sources: [http://www.bmpdatabase.org ASCE/EPA International BMP Database];[http://yosemite.epa.gov/r10/water.nsf/95537302e2c56cea8825688200708c9a/159859e0c556f1c988256b7f007525b9/$FILE/Evaluating%20the%20Impact%20of%20Watershed%20Treatment.pdf Caraco (CWP)], 2001; [http://www.mde.state.md.us/programs/Water/StormwaterManagementProgram/MarylandStormwaterDesignManual/Pages/programs/waterprograms/sedimentandstormwater/stormwater_design/index.aspx MDE], 2000; [http://www.stormwatercenter.net/Library/STP-Pollutant-Removal-Database.pdf Winer (CWP)], 2000; and Issue Paper D [http://wwwalker.net/p8/ P8] modeling<br> |
| − | b Average removal efficiency expected under [http://www.pca.state.mn.us/index.php/water/water-types-and-programs/stormwater/construction-stormwater/index.html MPCA Construction General Permit] Sizing Rules 1 and 3<br> | + | <sup>b</sup> Average removal efficiency expected under [http://www.pca.state.mn.us/index.php/water/water-types-and-programs/stormwater/construction-stormwater/index.html MPCA Construction General Permit] Sizing Rules 1 and 3<br> |
| − | c Upper limit on phosphorus removal with increased sizing and design features, based on national review<br> | + | <sup>c</sup> Upper limit on phosphorus removal with increased sizing and design features, based on national review<br> |
| − | d Average rate of soluble phosphorus removal in literature<br> | + | <sup>d</sup> Average rate of soluble phosphorus removal in literature<br> |
| − | e See also [[Calculating stormwater volume and pollutant reductions and credits]]<br> | + | <sup>e</sup> See also [[Calculating stormwater volume and pollutant reductions and credits]]<br> |
| − | f Note that the performance numbers apply only to that portion of total flow actually being treated; it does not include any runoff that by-passes the BMP<br> | + | <sup>f</sup> Note that the performance numbers apply only to that portion of total flow actually being treated; it does not include any runoff that by-passes the BMP<br> |
| − | g Note that soluble P can transfer from surface water to ground water, but this column refers only to surface water<br> | + | <sup>g</sup> Note that soluble P can transfer from surface water to ground water, but this column refers only to surface water<br> |
| − | h Note that 100% is assumed for all infiltration, but only for that portion of the flow fully treated in theinfiltration facility; by-passed runoff or runoff diverted via underdrain does not receive this level of treatment | + | <sup>h</sup> Note that 100% is assumed for all infiltration, but only for that portion of the flow fully treated in theinfiltration facility; by-passed runoff or runoff diverted via underdrain does not receive this level of treatment |
| − | </ | + | </font size> |
{{alert|Removal rates shown here are composite averages intended solely for use in comparing performance between BMP designs and for use in calculating load reduction in site-based TP models. They have been adapted, rounded and slightly discounted from statistical values published in BMP performance databases.|alert-warning}} | {{alert|Removal rates shown here are composite averages intended solely for use in comparing performance between BMP designs and for use in calculating load reduction in site-based TP models. They have been adapted, rounded and slightly discounted from statistical values published in BMP performance databases.|alert-warning}} | ||
Revision as of 15:17, 19 March 2013
General summary of comparative BMP phosphorus removal performancea,e,f
Link to this table
| BMP Group | BMP Design Variation | Average TP Removal Rateb | Maximum TP Removal Ratec | Average Soluble P Removal Ratedg |
|---|---|---|---|---|
| Bioretention | Underdrain | 50% | 65% | 60% |
| Infiltration | 100 | 100 | 100 | |
| Filtration | Media Filter | 50 | 55 | 0 |
| Vegetative Filters (dry) | 0 | 55 | 0 | |
| Wet Swale | 0 | 40 | 0 | |
| Infiltrationf,i | Infiltration Trench | 100 | 100 | 100 |
| Infiltration Basin | 100 | 100 | 100 | |
| Stormwater Ponds | Wet Pond | 50 | 75 | 70 |
| Multiple Pond | 60 | 75 | 75 | |
| Stormwater Wetlands | Shallow Wetland | 40 | 55 | 50 |
| Pond/Wetland | 55 | 75 | 65 |
a Removal rates shown in table are a composite of five sources: ASCE/EPA International BMP Database;Caraco (CWP), 2001; MDE, 2000; Winer (CWP), 2000; and Issue Paper D P8 modeling
b Average removal efficiency expected under MPCA Construction General Permit Sizing Rules 1 and 3
c Upper limit on phosphorus removal with increased sizing and design features, based on national review
d Average rate of soluble phosphorus removal in literature
e See also Calculating stormwater volume and pollutant reductions and credits
f Note that the performance numbers apply only to that portion of total flow actually being treated; it does not include any runoff that by-passes the BMP
g Note that soluble P can transfer from surface water to ground water, but this column refers only to surface water
h Note that 100% is assumed for all infiltration, but only for that portion of the flow fully treated in theinfiltration facility; by-passed runoff or runoff diverted via underdrain does not receive this level of treatment
Caution: Removal rates shown here are composite averages intended solely for use in comparing performance between BMP designs and for use in calculating load reduction in site-based TP models. They have been adapted, rounded and slightly discounted from statistical values published in BMP performance databases.