CUED Publications database

Leachate recirculation in bioreactor landfills considering the effect of MSW settlement on hydraulic properties

Feng, SJ and Zhang, X and Cao, BY (2014) Leachate recirculation in bioreactor landfills considering the effect of MSW settlement on hydraulic properties. Environmental Earth Sciences, 72. pp. 2315-2323. ISSN 1866-6280

Full text not available from this repository.

Abstract

© 2014, Springer-Verlag Berlin Heidelberg. During leachate recirculation, a bioreactor landfill will experience more rapid and complete settlement, which is mainly attributed to the weight of municipal solid waste (MSW) and its biodegradation. The settlement of MSW may cause the decrease of void ratio of MSW, which will influence the permeability of MSW and the leachate quantity that can be held in bioreactor landfills. In this study, a new one-dimensional model of leachate recirculation using infiltration pond is developed. The new method is not only capable of describing leachate flow considering the effect of MSW settlement, but also accounting separately leachate flow in saturated and unsaturated zones. Moreover, the effects of operating parameters are evaluated with a parametric study. The analyzing results show that the influence depth of leachate recirculation considering the effect of MSW settlement is smaller than the value without considering the effect. The influence depth and leachate recirculation volume increase with the increase of infiltration pond pressure head and MSW void ratio. This indicates that the field compaction of MSW has a great influence on the leachate recirculation.

Item Type: Article
Uncontrolled Keywords: Bioreactor landfill Leachate recirculation Settlement Municipal solid waste Unsaturated
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 23 Nov 2017 02:28
Last Modified: 22 Oct 2020 04:41
DOI: 10.1007/s12665-014-3140-x