Apparatus and method for electrokinetic in-situ leaching remediation of soil
US8926814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2014 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Apr 14, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09C2101/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
This invention relates to environment protection, and discloses apparatus and method for electrokinetic in-situ leaching remediation of contaminated soil. The apparatus includes a DC electrical source, electrode chambers, electrodes, permeable reactive barriers (PRBs), electrode solution pH testers, electrode solution extraction tubes, a heating pipe network, a heat exchanger, leacheate sprayers, acid-base adjusting solution sprayers, a multichannel peristaltic pump, automatic control devices, an electrode solution storage tank, an electrode solution treatment pond, an in-line pump, single-channel peristaltic pumps, a flowmeter, a time control device, a leacheate storage tank, an acid solution storage tank, an alkali solution storage tank, and soil pH testers. Through electrokinetic enhanced leaching, heating pipe network and PRBs to optimize remediation and accelerate remediation rate, and automatic control devices and recycling of electrode solution to elevate the automation level and increase resource recycling rate, a faster and better remediation at a lower cost can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.