Erosion and sediment and pollution control products using heat treated rice hulls
US11745166B2 · kind B2 · utility
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14References
19Claims
0Family size
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Key dates
| Filing date | Aug 27, 2021 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Nov 13, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A10/11
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An erosion, sediment and pollution control product comprises a rice hull filler material which has been heat treated sterilizing the rice hull filler material and increasing the pollutant affinity of the rice hull filler material; and a containment member containing the rice hull filler material and allowing fluid to flow through the containment member and the rice hull filler material. The containment member is a geotextile which may include cellulose based threads treated to be hydrophobic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.