STORMWATER RUNOFF TREATMENT SUBSTRATE AND STORMWATER BIORETENTION SYSTEM CONSTRUCTED BY USING SUBSTRATE
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United States of America Patent
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Apr 4, 2024
app pub date -
Dec 10, 2023
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Aug 27, 2020
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A stormwater runoff treatment substrate includes a lower pyrite substrate layer and an upper biochar substrate layer. The lower pyrite substrate layer includes pyrite, oyster shell powder, and sandy materials in a volume ratio of 10:5:85. The upper biochar substrate layer includes biochar or activated carbon, organic nutrient soil, and sandy materials in a volume ratio of 20:3:77.
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