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US 2022/0064024 A1Published application
Stormwater runoff treatment substrate and stormwater bioretention system constructed by using substrate
AssigneeChongqing University
InventorsHongxiang CHAI, Zheng KONG, Zhiyu SHAO, Jingchen MA
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Abstract
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.
Claims7
A stormwater runoff treatment substrate, comprising a lower pyrite substrate layer and an upper biochar substrate layer;
- wherein the lower pyrite substrate layer comprises pyrite, oyster shell powder, and sandy materials in a volume ratio of 10:5:85;
- the upper biochar substrate layer comprises biochar or activated carbon, organic nutrient soil, and sandy materials in a volume ratio of 20:3:77.
Dependencies are inferred from the claim text.