Nutrient removal filtration system and method
US11253798B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2020 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Jun 23, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2101/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Systems, devices, and methods for providing nutrient removals in an up flow filtration storm water system for treating water to very high clean levels using filtration media. A filtration media can be supported by a screen above a floor in a vault allows for incoming storm water to pass into a void space above the floor into the screen and filtration media and then out an outlet to the vault. The filtration media can include recyclable and/or natural particles. Layers of river rocks can be placed on top of and below the filtration media. The captured debris can drop to the floor. The long lasting filtration media can be cleaned by being backwashed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.