In-situ remediation method for lead-zinc slag dump
US11858018B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2023 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | May 23, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB09C2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An in-situ remediation method for a lead-zinc slag dump is provided, belonging to the technical field of prevention and control of soil pollution, including: step 1, providing a curing agent layer, a clay barrier layer and a planting soil layer on a surface of the lead-zinc slag dump in sequence, and providing an interceptor ditch and a retaining wall at a highest position and a lowest position of the lead-zinc slag dump respectively; step 2, planting ground covers and/or shrubs in the planting soil layer; and step 3, providing baffle plates and a plurality of regulating assemblies in lead-zinc slag, wherein each of the regulating assemblies comprises a water tank, a blind ditch and a first isolation plate, and a water outlet end of the water tank and a water outlet end of the blind ditch are connected with a reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.