Advanced treatment method of feed water by combination of metal zinc and ozone
US9115015B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2009 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Dec 8, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/023
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An advanced treatment method of feed water by combination of metal zinc and ozone is provided. The advanced treatment method of feed water comprises putting metal zinc into an ozone contact reactor, adding water to be treated into the reactor at a flow rate of 1-50 m/h, at the same time, introducing ozone into the water such that the ozone, the metal zinc and the water can be contacted with each other fully. The hydraulic retention time of the water to be treated in the reactor is 1-200 min. The amount of the ozone which is introduced into the water to be treated is 0.1-100 mg per liter water. During the water treatment process of the invention, the metal ions cannot be lost, the secondary pollution cannot be caused, and the preparation technology is simple with low cost and good treatment effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.