m |
m |
||
Line 14: | Line 14: | ||
<td>Phosphorus leaching</td> | <td>Phosphorus leaching</td> | ||
<td>No [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Effect_of_biochar_on_retention_and_fate_of_phosphorus]</td> | <td>No [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Effect_of_biochar_on_retention_and_fate_of_phosphorus]</td> | ||
− | <td>No to slight</td> | + | <td>No to slight [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Effects_of_coir_on_retention_and_fate_of_phosphorus]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 22: | Line 22: | ||
<td>Phosphorus retention</td> | <td>Phosphorus retention</td> | ||
<td>No to slight [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Effect_of_biochar_on_retention_and_fate_of_phosphorus]</td> | <td>No to slight [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Effect_of_biochar_on_retention_and_fate_of_phosphorus]</td> | ||
− | <td>No</td> | + | <td>No [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Effects_of_coir_on_retention_and_fate_of_phosphorus]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 30: | Line 30: | ||
<td>Handling concerns</td> | <td>Handling concerns</td> | ||
<td>Potential explosive concerns in closed space situations; volatile compounds (depending on pyrolysis temperature) [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Storage.2C_handling.2C_and_field_application]</td> | <td>Potential explosive concerns in closed space situations; volatile compounds (depending on pyrolysis temperature) [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Storage.2C_handling.2C_and_field_application]</td> | ||
− | <td>Dust</td> | + | <td>Dust [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Storage.2C_handling.2C_and_field_application]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 38: | Line 38: | ||
<td>Soil hydraulic properties</td> | <td>Soil hydraulic properties</td> | ||
<td>Significant improvement [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Chemical-physical_properties_of_biochar]</td> | <td>Significant improvement [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Chemical-physical_properties_of_biochar]</td> | ||
− | <td>Significant improvement</td> | + | <td>Significant improvement [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Chemical-physical_properties_of_coir]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 46: | Line 46: | ||
<td>Soil physical properties</td> | <td>Soil physical properties</td> | ||
<td>Significant improvement [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Chemical-physical_properties_of_biochar]</td> | <td>Significant improvement [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Chemical-physical_properties_of_biochar]</td> | ||
− | <td>Moderate improvement</td> | + | <td>Moderate improvement [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Chemical-physical_properties_of_coir]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 54: | Line 54: | ||
<td>Plant/microbial effects</td> | <td>Plant/microbial effects</td> | ||
<td>Beneficial but varies with feedstock [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Effects_of_biochar_on_soil_fertility.2C_plant_growth.2C_and_microbial_function]</td> | <td>Beneficial but varies with feedstock [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Effects_of_biochar_on_soil_fertility.2C_plant_growth.2C_and_microbial_function]</td> | ||
− | <td>Beneficial</td> | + | <td>Beneficial [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Effects_of_coir_on_soil_fertility.2C_plant_growth.2C_and_microbial_function]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 62: | Line 62: | ||
<td>Availability</td> | <td>Availability</td> | ||
<td>Multiple distributors [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Distributors]</td> | <td>Multiple distributors [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Distributors]</td> | ||
− | <td>Widely available</td> | + | <td>Widely available [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Distributors]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 70: | Line 70: | ||
<td>Specifications/standards available</td> | <td>Specifications/standards available</td> | ||
<td>Limited due to variability with feedstocks [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Standards.2C_classification.2C_testing.2C_and_distributors]</td> | <td>Limited due to variability with feedstocks [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Standards.2C_classification.2C_testing.2C_and_distributors]</td> | ||
− | <td>Yes</td> | + | <td>Yes [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Coir_standards_and_specifications]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 111: | Line 111: | ||
<td>Sustainability</td> | <td>Sustainability</td> | ||
<td>Sustainable, but has current market constraints [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Sustainability]</td> | <td>Sustainable, but has current market constraints [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Sustainability]</td> | ||
− | <td>Sustainable</td> | + | <td>Sustainable [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Sustainability]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
Line 119: | Line 119: | ||
<td>Potential contaminants</td> | <td>Potential contaminants</td> | ||
<td>Minor risk - metals and polycyclic aromatic hydrocarbons (PAHs) [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Potential_contaminants_in_biochar]</td> | <td>Minor risk - metals and polycyclic aromatic hydrocarbons (PAHs) [https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management#Potential_contaminants_in_biochar]</td> | ||
− | <td>Low risk - possible chloride depending on preparation method</td> | + | <td>Low risk - possible chloride depending on preparation method [https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management#Potential_contaminants_in_coir]</td> |
<td></td> | <td></td> | ||
<td></td> | <td></td> |
Engineered (bioretention) media organic material properties and specifications.
Link to this table
Property | Biochar | Coir | Compost | Peat | Wood chips |
---|---|---|---|---|---|
Phosphorus leaching | No [1] | No to slight [2] | |||
Phosphorus retention | No to slight [3] | No [4] | |||
Handling concerns | Potential explosive concerns in closed space situations; volatile compounds (depending on pyrolysis temperature) [5] | Dust [6] | |||
Soil hydraulic properties | Significant improvement [7] | Significant improvement [8] | |||
Soil physical properties | Significant improvement [9] | Moderate improvement [10] | |||
Plant/microbial effects | Beneficial but varies with feedstock [11] | Beneficial [12] | |||
Availability | Multiple distributors [13] | Widely available [14] | |||
Specifications/standards available | Limited due to variability with feedstocks [15] | Yes [16] | |||
Cost | |||||
Research needs | Feedstocks suitable for stormwater applications | Phosphorus fate in stormwater applications | |||
Applications | [17] | [18] | |||
Chemical properties | [19] | [20] | |||
Sustainability | Sustainable, but has current market constraints [21] | Sustainable [22] | |||
Potential contaminants | Minor risk - metals and polycyclic aromatic hydrocarbons (PAHs) [23] | Low risk - possible chloride depending on preparation method [24] | |||
Test methods | Not standardized but International Biochar Initiative widely used [25] | Not standardized but multiple methods available [26] | |||
Effects of aging/Life expectancy | Varies with production method [27] | Decomposes slowly unless nutrients are added [28] | |||
Notes | Characteristics vary with feedstock and pyrolysis temperature | Coir must be composted or incorporated with compost, lime, fertilizer, and/or microbes |