RESEARCH ARTICLE
Effects of Bonded Tyres on Leachate Recirculation of Bioreactor Landfills
Huijie Zhang1, *, Jie Heng1, Dongsheng Jeng2, Haixia Xu1
Article Information
Identifiers and Pagination:
Year: 2017Volume: 11
First Page: 552
Last Page: 562
Publisher ID: TOCIEJ-11-552
DOI: 10.2174/1874149501711010552
Article History:
Received Date: 26/12/2016Revision Received Date: 09/02/2017
Acceptance Date: 01/03/2017
Electronic publication date: 19/07/2017
Collection year: 2017
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Introduction:
In bioreactor landfills, leachate recirculation significantly influences the process of stabilization and the stability of slope.
Method:
To speed up the leachate recirculation and reduce its adverse impact on slope stability, this paper proposes a new method which constructs a spatial net consisted of bonded whole tyres in the municipal waste during landfilling.
Results and Conclusion:
In this study, a numerical two-permeability flow model was used to investigate the effects of tyres embedding on the outflow rate of leachate injection. Furthermore, it was coupled with momentum balance equations to determine the local factor of safety of slope stability. The established model was applied to a simplified bioreactor landfill. The simulation results demonstrated that the tyre net can accelerate the rate of leachate injection and contribute to distribute the liquid more uniformly. Meanwhile, the slope stability was improved due to the enforcement of waste in the presence of tyres.