Municipal solid waste landfill barrier system capable of prolonging breakthrough time of leachate and manufacturing method thereof
US10017911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2016 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Jan 4, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a MSW (municipal solid waste) landfill barrier system capable of prolonging breakthrough time of leachate and a manufacturing method thereof. The system comprises a leachate collection and removal layer, a first HDPE (high-density polyethylene) geomembrane infiltration proof layer (2), a clay liner (5) and a groundwater collection and removal layer (6) which are sequentially stacked from top to bottom. The clay liner (5) is composed of a lower clay liner (51), a middle clay liner (52) and an upper clay liner (53) which are sequentially arranged, wherein the middle clay liner (52) is filled with a medium-fine sand layer (7) laid with sands of particle sizes ranging from 0.1 mm to 0.5 mm and of water content ≤3%, wherein the saturated hydraulic conductivity of the medium-fine sand layer (7) varies from 1×10−5 to 1×10−3. A method of manufacturing the MSW landfill barrier system capable of prolonging breakthrough time of leachate is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.