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Showing 1 to 20 of 28 for “"Landfill gas"”.
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An investigation of volatile organic compounds in landfill gas
… study of volatile organic compounds (VOCs) in landfill gas from seven landfill sites in the western region of Melbourne, Victoria, Australia. Sampling methods including sampling with adsorption tubes, tedlar bags and cryogenic trapping were investigated and analytical systems were developed …
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Management strategy of landfill leachate and landfill gas condensate
Studies were conducted to evaluate the impact of landfill leachate discharge on the operation of waste water treatment plants (WWTPs). Two aspects of interferences were found: one is UV quenching substances, which are bio-refractory and able to penetrate the biological treatment processes, …
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Development of a Framework for Assessing Sustainability Benefits of Landfill Gas Clean Development Mechanism (CDM) Projects
… developed countries in meeting their greenhouse gases (GHG) emission reduction targets. This is achieved through implementing GHG abatement projects in developing countries. There has been increased attention in the contribution of CDM projects to sustainable development in host nations. Previous …
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A Study of Greenhouse Gas Emissions and Performance of an Internal Combustion Engine Operating on Landfill Gas Blends as Fuel
<p>Landfill gas (LFG) is an abundant resource naturally occurring from the decomposition of municipal solid waste. It can be generated in U.S. landfills at a rate of 24.2 to 59.1 GNm<sup>3</sup> per year.<sup>1</sup> LFG presents both a problem and solution with respect to global warming. Composed …
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Evaluation of theoretical models to estimate landfill gas(LFG) potential as a renewable energy source: a case study of Chunga landfill
… of three techniques: recycling, combustion, and landfill disposal. In Lusaka, at least 22.5 % of the waste generated is disposed at Chunga landfill. Landfills pose as environmental threats due to uncollected landfill gas (LFG) emissions generated by biochemical processes arising from the disposed …
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Modeling biodegradation settlement of municipal solid waste (msw) based on measurement of landfill gas and degradable solids in leachate recirculated bioreactors
… laboratory-to-field relationship for bioreactor landfills. Biodegradation is best described by loss of mass; however, primary researchers have assumed the phenomenon to be purely volume loss and modeled best by mechanical processes using a conservation of energy approach. It is suggested that the …
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Continued optimization of a microelectrolysis treatment process for removal of arsenic from landfill gas condensate, characterization of materials, and evaluation of Fe as a predictor of treatment monitoring
Landfill gas condensate is formed during landfill gas (LFG) purification that must be carried out to produce pipeline-quality renewable natural gas. LFG condensates (LGC) are known to contain high levels of arsenic whose presence may result in exceeding applicable discharge limits. Arsenic …
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Did State Renewable Portfolio Standards Induce Technical Change In Methane Mitigation in the U.S. Landfill Sector?
Landfill gas (LFG) projects use the gas created from decomposing waste, which is approximately 49% methane, and substitute it for natural gas in engines, boilers, turbines, and other technologies to produce energy or heat. The projects are beneficial in terms of increased safety at the landfill, …
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Mechanics of biocell landfill settlements
Prediction of landfill gas generation and settlements are of concerns in design and maintenance of biocell landfills. Accurate settlement prediction is essential for design of piping systems used for the delivery of re-circulated leachate and recovery of landfill gas. Landfill settlement is the …
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Comparative Analysis of Wind, Solar and Landfill Gases as Alternative Sources of Energy for Electricity Generation
… upcoming Alternative Sources - Solar, Wind and Landfill Gases - are discussed and compared in the document. Based on the comparison, Landfill Gas projects seem to be very favorable, despite the higher costs related with such projects, several advantages over the other two Alternative Sources are …
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Monitoring and Inverse Dispersion Modeling to Quantify VOCs from MSW Landfill
In USA, the Municipal Solid Waste (MSW) landfills accumulate about 130 million tons of solid waste every year. A significant amount of biodegradable solid waste is converted to landfill gas due to anaerobic stabilization by bacteria. These biochemical reactions produce volatile organic compounds …
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NUMERICAL ANALYSIS OF GAS FLOW WITHIN A MUNICIPAL SOLID WASTE LANDFILL
Numerical analysis and modelling of gas flow within a municipal solid waste (MSW) landfill has the potential to significantly enhance the efficiency of design and performance of operation for landfill gas (LFG) extraction and utilization projects. Over recent decades, several numerical models and …
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Landfill design, construction and non-invasive monitoring
… order to assess their applicability for use in landfill design, construction and monitoring. Firstly, an assessment is made of QA procedures during liner construction through the detailed evaluation of two case studies. Construction QA procedures on-site are compared to available guidelines. The …
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Greenhouse Gas Mitigation and Management Strategies for Methane Reduction from Waste in Victoria, British Columbia, Canada.
AbstractThis study evaluated greenhouse-gas mitigation and management strategies to reduce methane emissions from waste recycling activities in Victoria, British Columbia. Using a mixed-methods approach that included a literature review, material-flow modelling, and stakeholder policy analysis …
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Solid Waste Degradation, Compaction and Water Holding Capacity
Bioreactor landfills offer a sustainable way to achieve increased waste degradation along with benefits such as enhanced landfill gas (LFG) recovery, reduction in leachate pollution potential and rapid increase in landfill volumetric capacity. It also offers significant reduction in post closure …
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Life-cycle Greenhouse Gas Emissions and Water Footprint of Residential Waste Collection and Management Systems
… negatively affect RCC efficiency, greenhouse gas (GHG) emissions, and cost. Second, the neglected impact of MSW management practices on water resources. Third, the implications of alternative fuels on the environmental and financial performance of waste collection where fuel plays a …
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Evaluation of the vertical and horizontal hydraulic conductivities of household wastes
… is therefore a key parameter in the design of landfill leachate management systems. Hydraulic conductivity of landfilled wastes may be affected by several factors such as overburden stress from the weight of overlying waste, water content, the type, age and pre-processing of the waste, and the …
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Zeroing in on food waste : estimating the sources and sinks of putrescible material in Christchurch
… noxious and generally unpleasant emissions. In a landfill putrescible material can contribute greatly to the negative environmental effects associated with the landfill such as leachate, landfill gas, and offensive odours. In addition, it is a major contaminant in the recycling of metal, glass, …
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Landfill containment and waste management systems
This thesis report addresses the role of landfill disposal within the framework of the modem Integrated Solid Waste Management (ISWM) hierarchy.<br/><br/>The aims of the research are presented in the context of a literature search and postal questionnaire survey to identify trends in United Kingdom …
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