System and method for wastewater disinfection
US9090490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2012 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | May 29, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49428
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system and method for wastewater treatment using ultraviolet (UV) irradiation of wastewater flowing in a treatment chamber. Wastewater to be treated flows into the first UV exposure chamber where it is exposed to UV illumination. Wastewater exposure time is lengthened by channeling the wastewater to first flow down a first UV exposure chamber and then back up through a second UV exposure chamber both of which are in a single structure. The first and second UV exposure chambers are separated by the UV illumination source so that wastewater on the two sides of the UV illumination source (i.e. both UV exposure chambers) cannot mix, and so that UV illumination time is dictated by the flow rate of the wastewater and the length of the UV illumination source. Thus the UV illumination path is roughly twice the length of the UV illumination source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.