Estimation of Maximum Liquid Depth in Layered Drainage Blankets over Landfill Barriers

Han, Ke; Chen, Yunmin; Huang, Chuangbing

doi:10.1061/(asce)0733-9372(2008)134:1(67)

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…Among the steady-state calculation methods of the maximum leachate head, the method described by McEnroe [11] was regarded as a relatively accurate method. In the meantime, another method for calculating the maximum liquid depth in layered media as well as composite landfill drainage systems was proposed by Ke et al [13]. In order to offset the defect of the steady-state model which cannot be used to simulate the varying leachate head over time, nor quantize the efficacy of the leachate collection system, Demetracopoulos et al [14] established the QSS (quasi-steady state) model based on the model proposed by Wong [15].…”

Section: Introductionmentioning

confidence: 99%

Factors Affecting the Maximum Leachate Head in the Landfill Drainage Layer under Clogging Conditions

Shen

2023

Sustainability

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Clogging of the landfill drainage layer leads to a high leachate head developing over the bottom liner, which increases the risk of leachate leakage. Estimation of the maximum leachate head in the landfill drainage layer is of great significance to the pollution control of bottom liners. In this study, a simplified model considering the development of clogging is established through assuming the spatial and temporal distributions of clogging in a drainage layer of landfill. The calculation results are compared with a previous study to verify the proposed model. Through parameter analysis, it is discovered that the larger the initial hydraulic conductivity, the less the influence of clogging on the leachate head at the beginning, but it will increase over time. Meanwhile, a longer drainage distance, a larger inflow rate, or a higher ion concentration will lead to a greater influence of clogging on the leachate head. The completion time of clogging is more sensitive to the variation of inflow rate and ion concentration. In order to effectively control the maximum leachate head, it is suggested that the drainage material with large hydraulic conductivity such as pebbles or gravel should be used, the drainage slope should be greater than 4%, the drainage distance should be controlled at 20 m, and calcium products should be removed from leachate through adsorption, precipitation, or waste reuse.

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Section: Introductionmentioning

confidence: 99%

Factors Affecting the Maximum Leachate Head in the Landfill Drainage Layer under Clogging Conditions

Shen

2023

Sustainability

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Environmental Geotechnics Related to Landfills of Municipal Solid Wastes

Chen

Zhan

2010

Advances in Environmental Geotechnics

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Management of municipal solid waste (MSW) is one of the major environmental problems in China. Solid waste disposal in landfills remains the most economic form of disposal for most cases. In this paper, an attempt has been made to provide a review of four geotechnical issues associated with landfills of MSWs, including (1) water and leachate flow within landfills, (2) landfill gas generation, transport and control, (3) settlement of landfills and its impacts, and (4) stability of waste mass. The review is conducted primarily in the context of the waste composition characteristic and the current practice of landfills pertaining to China. The current status and major problems associated with the current landfill practice are identified and/or evaluated, and the areas required for future research and development are pointed out.

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Estimation of maximum saturated depth in two-layered drainage blankets over the barrier in landfill cover system

Feng

Jiang

et al. 2013

Environ Earth Sci

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Estimation of Maximum Liquid Depth in Layered Drainage Blankets over Landfill Barriers

Cited by 4 publications

References 10 publications

Factors Affecting the Maximum Leachate Head in the Landfill Drainage Layer under Clogging Conditions

Factors Affecting the Maximum Leachate Head in the Landfill Drainage Layer under Clogging Conditions

Environmental Geotechnics Related to Landfills of Municipal Solid Wastes

Estimation of maximum saturated depth in two-layered drainage blankets over the barrier in landfill cover system

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