Wastewater dissolved-air floatation apparatus combined with precipitation tank having sloped plates
US11358073B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 23, 2020 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Apr 23, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A wastewater dissolved-air floatation apparatus combined with a precipitation tank having sloped plates is proposed. The apparatus can reduce a transfer load according to the discharge of sludge, when the sludge is discharged through a discharge screw which is a discharge means, so as to enable sludge discharge efficiency to be maximized, has a cleaning means so as to enable components provided therein to be easily cleaned, maintained and managed through cleaning when the inside thereof is required to be cleaned, can control the discharge level of wastewater, which has been treated while sludge precipitation and suspended particle floatation are stably performed thereon inside a separation tank to which microbubbles are supplied, selectively blocks the supply of the microbubbles into the separation tank so as to use the separation tank as a precipitation tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.