Gas Generation, Transport, and Extraction in Landfills

Arigala, Sumadhu G.; Tsotsis, Theodore T.; Webster, Ian A.; Yortsos, Y.C.; Kattapuram, James J.

doi:10.1061/(asce)0733-9372(1995)121:1(33)

Cited by 75 publications

(48 citation statements)

References 4 publications

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“…In fact, it is speculated that in the U.S., contamination by municipal landfills, to which every household contributes more than a gallon of hazardous wastes per year (Lee et al, 1986), could become a bigger problem than contamination associated with the sole disposal of hazardous wastes in landfills (Senior, 1990). Currently, it is estimated that over 25% of the Superfund sites listed on the National Priority List are solid waste landfills (Arigala et al, 1995).…”

Section:   mentioning

confidence: 99%

Environmental Impacts of Solid Waste Landfilling

El‐Fadel

Findikakis

Leckie

1997

Journal of Environmental Management

522

255

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Section:   mentioning

confidence: 99%

Environmental Impacts of Solid Waste Landfilling

El‐Fadel

Findikakis

Leckie

1997

Journal of Environmental Management

522

255

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“…In the first type, biological processes are reduced to the hydrolysis of the solid substrate, which is the limiting reaction step. The substrate degradation rate is described by a simple first order substrate related kinetic (Arigala et al, 1995;Findikakis and Leckie, 1979;Hashemi et al, 2002;Nastev et al, 2001;Vigneault et al, 2004). No water dependency for the hydrolysis reaction is introduced.…”

Section: Introductionmentioning

confidence: 99%

A logistic model for the prediction of the influence of water on the solid waste methanization in landfills

Pommier

Chenu

Quintard

et al. 2006

Biotech & Bioengineering

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This article deals with the impact of water content of solid waste on biogas production kinetics in landfills. This impact has been proved in the laboratory thanks to anaerobic biodegradation experiments on paper/cardboard waste samples. A strong dependence with the moisture level was observed for both kinetic rates and maximum methane production. In this article, a logistic model is proposed to simulate the biogas production rate. It is chosen as simple as possible in order to allow for a correct identification of the model parameters given the experimental data available. The moisture dependency is introduced through a linear weighing of the biomass specific growth rate and of the amount of accessible organic substrate. It is directly linked to physical properties of the waste: the holding capacity and the minimal moisture level allowing the presence of free water.

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“…Case 3: A thin layer with thickness d l (m) and gas permeability k l (m/s) is added at the top surface to simulate the low-permeable cover. Gas flow is predominantly vertical [6,11] when the height of landfill H d l and thus the boundary condition at landfill cover is…”

Section: Solutions For Single-layered Landfillmentioning

confidence: 99%

A coupled model for prediction of settlement and gas flow in MSW landfills

Batlle

Lloret

2010

Num Anal Meth Geomechanics

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SUMMARYPrediction of long-term settlement and control of gas pollution to the environment are two principle concerns during the management of municipal solid waste (MSW) landfills. The behavior of settlement and gas flow in MSW landfills is complicated due to the combined effect of mechanical deformation of the solid skeleton and continuous biodegradation of the waste. A one-dimensional settlement and gas flow model is presented in this paper, which is capable of predicting time evolution of settlement as well as temporal and spatial distribution of gas pressure within multi-layered landfills under a variety of operating scenarios. The analytical solution to the novel model is evaluated with numerical simulation and field measurements. The resulting efficiency and accuracy highlight the capability of the proposed model to reproduce the settlement behavior and gas flow in MSW landfills. The influences of operating conditions and waste properties on settlement and gas pressure are examined for typical MSW landfills.

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Gas Generation, Transport, and Extraction in Landfills

Cited by 75 publications

References 4 publications

Environmental Impacts of Solid Waste Landfilling

Environmental Impacts of Solid Waste Landfilling

A logistic model for the prediction of the influence of water on the solid waste methanization in landfills

A coupled model for prediction of settlement and gas flow in MSW landfills

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