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>

Revision as of 13:25, 22 April 2020

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