Continuous flow reactor for conversion of wastewater to biohydrogen using activated sludge and microalgae
US12371714B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2023 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Sep 28, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/06
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Apparatus 101 for producing a continuous stream of biohydrogen includes a continuous flow stirred tank reactor (CSTR) 12, lighting arrangement 13; ports 14; peristaltic pumps 16; and gas chromatograph (GC) 18. The CSTR 12 includes internal bioreactor chamber 20; a photosynthesizing microorganism inlet stream 22.1 for delivering Chlorella vulgaris; an organic waste inlet stream 22.2 for delivering wastewater activated sludge (WWAS); and a nutrient inlet stream 22.3 for delivering nutrients into the chamber 20; an outlet stream 24; and stirrers for stirring the contents of the chamber. The lighting 13 is provided by lamps 26 for transmitting light through a transparent sidewall of the chamber 20. The ports 14 and CG 18 are for taking measurements from the chamber 20. The pumps 16 control flowrate of the streams 22.1, 22.2, 22.3 and 24 for regulating biohydrogen production from fermentation while Chlorella vulgaris consumes oxygen to avoid biohydrogen conversion into methane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.