Method and device for treatment of saline-alkali land
US9486844B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2014 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Dec 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for treatment of saline-alkali land is provided, comprising at least one self-circulating process, the self-circulating process comprising: step 1, converting saline-alkali water deposited in the saline-alkali land into acidic water by an electrolysis system, whereby the salt content of the acidic water is lower than that of the saline-alkali water; and step 2, leaching the saline-alkali land with leaching water comprising the acidic water. A device for treatment of saline-alkali land according to the above-described method is also provided, comprising: an electrolysis system for converting saline-alkali water deposited in the saline-alkali land into acidic water, whereby the salt content of the acidic water is lower than that of the saline-alkali water; and a leaching system for leaching the saline-alkali land with leaching water comprising the acidic water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.