Difference between revisions of "Engineered (bioretention) media amendments material properties and specifications"
(Created page with "<font size=3>'''Engineered (bioretention) media amendments material properties and specifications'''.</font size><br> Link to this Engineered (bioretention) media amendments...") |
m |
||
| Line 6: | Line 6: | ||
<th>Property</th> | <th>Property</th> | ||
<th>[https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management Biochar]</th> | <th>[https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management Biochar]</th> | ||
| − | <th>[https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management Coir] | + | <th>[https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management Coir]</th> |
| − | <th>Water treatment residuals</th> | + | <th>Water treatment residuals<sup>1</sup></th> |
<th>Spent lime</th> | <th>Spent lime</th> | ||
<th>Compost</th> | <th>Compost</th> | ||
Revision as of 21:50, 21 April 2020
Engineered (bioretention) media amendments material properties and specifications.
Link to this table
| Property | Biochar | Coir | Water treatment residuals1 | Spent lime | Compost | Peat | Iron | Wood chips |
|---|---|---|---|---|---|---|---|---|
| Phosphorus leaching | No | No to slight | ||||||
| Phosphorus retention | No to slight | No | ||||||
| Handling concerns | Potential explosive concerns in closed space situations; volatile compounds (depending on pyrolysis temperature) | Dust | ||||||
| Soil hydraulic properties | Significant improvement | Significant improvement | ||||||
| Soil physical properties | Significant improvement | Moderate improvement | ||||||
| Plant effects | Beneficial but varies with feedstock | Beneficial | ||||||
| Availability | Multiple distributors | Widely available | ||||||
| Specifications available | Limited due to variability with feedstocks | Yes | ||||||
| Cost | ||||||||
| Research needs | Feedstocks suitable for stormwater applications | Phosphorus fate in stormwater applications | ||||||
| Applications | [1] | [2] | ||||||
| Chemical and physical properties | [3] | [4] | ||||||
| Sustainability | Sustainable, but has current market constraints | Sustainable | ||||||
| Potential contaminants | Minor risk - metals and polycyclic aromatic hydrocarbons (PAHs) | Low risk - possible chloride depending on preparation method | ||||||
| Test methods | Not standardized but International Biochar Initiative widely used [5] | Not standardized but multiple methods available [6] | ||||||
| Effects of aging | Varies with production method [7] | Decomposes slowly unless nutrients are added [8] | ||||||
| Notes | Characteristics vary with feedstock and pyrolysis temperature | Coir must be composted or incorporated with compost, lime, fertilizer, and/or microbes |
1Exclusive of spent lime