landfill gas Articles
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Management and use of landfill gas in Chile
According to the latest census there are 409 urban localities with a total population of 12,3 million people; of which 43% live in the city of Santiago, the nations capital. The garbage collection services collect 99.2% of the urban waste with an average of 8,650 tons of residues per day. Of the total residues collected through out the country, 85% receive a proper final disposal in ...
By ORBIT e.V.
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The modelling of biochemical–thermal coupling effect on gas generation and transport in MSW landfill
The landfill gas generation was investigated based on the theories of the thermodynamics, microbial dynamics and chemical dynamics. The coupling model was developed for describing the gas transport and heat release. And the relationship between the gas generation rate and the temperature was proposed. The parameters in the gas generation model were obtained by bioreactor test in order to evaluate ...
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Oxidation System for Sanitary Landfills & Recycling Centers
A major US waste handling company operates a large landfill in Florida, and in 1992, when Hurricane Andrew struck southern Florida, the landfill saw a huge increase in the amount of C&D waste. Shortly after this, the levels of H2S started dramatically rising. This company evaluated several technologies for the removal of H2S, which was estimated to be as high as 5000 ppmv, with up to 2-3 ...
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Secure handling of landfill gas
Type HOFGAS®- Sparky S Commissioning 2002 Site Marley (GB) Situation The Marley landfill site in England is systematically degassed in order to meet the stringent local regulations. Marley is a proportionally small landfill site and does not deliver enough gas for energy generation. Consequently, the landfill gas is cleaned directly in a high temperature flare. HOFSTETTER’s Task ...
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PERRL project in Canada
Type HOFGAS® - Sparky XXL (1000Nm3/h) Commissioning 2004 Site St.Tite-des-Caps (CA) Situation The landfill site St. Tite-des-Caps is approx. 70 km north east of Quebec. The project was allotted within the framework of the PERRL (Pilot Emission Removals, Reductions and Learnings) initiative with which the Canadian Government is supporting companies already playing a part in the ...
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Combined Landfill Gas and Leachate Extraction Systems
There is currently a shift of emphasis in the approach to treatment of landfill gas and leachate. Until recently, there have been two disparate schools of thought concerning the collection and disposal of these two by-products of organic waste degradation within the same bio-reactor. The tendency in the past has been to study gas and leachate as separate problems each of which requiring a ...
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Oxidation System for Sanitary Landfills & Recycling Centers
The Broward County, Florida, Central Sanitary Landfill & Recycling Center operates the country’s largest landfill gas turbine-to-energy plant. Approximately 9 MMSCFD of landfill gas is collected from 300 wells and converted into electricity. During the cleanup after hurricane Andrew, large amounts of construction and demolition debris were brought into the landfill for disposal. Over a very ...
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Controlling H2S Emissions from Landfill Gas
A major US waste handling company operates a large landfill in Florida, and in 1992, when Hurricane Andrew struck southern Florida, the landfill saw a huge increase in the amount of C&D waste. Shortly after this, the levels of H2S started dramatically rising. This company evaluated several technologies for the removal of H2S, which was estimated to be as high as 5000 ppmv, with up to 2-3 ...
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Biogas Power Plant Waste Management & Utility - Veolia Proprete - Case Study
OWNER Veolia Proprete LOCATION France PRODUCT Mars 100 (11 MWe) Gas Turbine CUSTOMER VALUE Electricity Generation from Landfill Gas Veolia Proprete specializes in the management and recylcing of waste. Veolia Proprete required a sustainable solution to minimize the impact of methane from landfill gas produced by a solid waste management system at a site close to Paris. The project required ...
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Formulating LandGem model for estimation of landfill gas under Indian scenario
Mostly in India, solid waste without any segregation is deposited into open dumping sites. Through these sites, there is uncontrolled emission of methane and landfill gas. The landfill gas has tremendous potential in terms of converting and using them as source of fuel. The emission of landfill gas depends on types of wastes, its rate of biodegradability, its methane potential, level of ...
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In-situ estimation of the methane generation rate for a wet and highly organic solid waste landfill
Significant investments in landfill gas utilisation projects are required at project commencement. The methane generation rate for the Villa Dominico Landfill in Buenos Aires, Argentina is 0.26 yr−1, a very high rate as a result of the high organic content in the waste, and high moisture conditions within the refuse. The implications for landfills is that landfill gas recovery projects must be ...
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LFG pumping trials with Automatic Flare Systems (AFS) - Case Study
Application Landfill gas Equipment GA3000 Location United Kingdom Customer Automatic Flare Systems (AFS) Requirement Managing director at AFS, Steve Willacy said, “We want continuous landfill gas monitoring and analysis and to use a data logger to record the results from the gas analyser." Operation AFS uses its mobile flare skid for landfill gas pumping trials to analyse the ...
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South Texas Landfill − Case Study
During 2011, four QED Precision Fine Tune Control Valves™ were installed in wells at a south Texas landfill. The following graphs show the composition of the landfill gas and flow data before and after the installation of the Control Valves in Wells 07, 54, 78, and 90. The closest neighboring well on the same trunk line, using a gate valve for flow control, was also chosen for an ...
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Mitigating methane emissions from passive landfill vents: a viable option for older closed landfills
This study investigated the use of biofilters to reduce methane emissions from landfill passive gas vents. Two biofilter designs were evaluated. The two filter designs achieved similar percent oxidation averages. The radial biofilter design, however, obtained a much higher methane oxidation rate. The higher surface area of flow in the radial biofilters decreased the methane influx leading to ...
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Warren County Case History
A non-hazardous solid waste landfill in northwestern New Jersey successfully used construction and demolition (C&D) debris screenings as an alternative daily landfill cover for six years, until landfill gas sampling indicated excessively high H2S volumes. While the U.S. Environmental Protection Agency estimates an average of 35.5 parts per million by volume (ppmv) of H2S in landfill gas, the ...
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Measuring of landfill gas production
Type HOFGAS®- Smarty S Commissioning 2002 Site Nurmijärvi (FI) Situation An accurate estimation of the landfill gas production will support the operator at the Nurmijärvi landfill site in planning the final gas collection and degassing system. A mobile degassing plant was installed to measure the quantity and quality of the landfill gas for a 1-2 year period. HOFSTETTER’s Task ...
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Monitoring landfill gas - Case Study
Infrared absorption Infrared absorption is usually the preferred method for measuring methane and carbon dioxide. Most gases absorb radiation in the infrared region. The wavelength of radiation that is absorbed is determined by the natural vibration frequencies of the molecule. These natural frequencies will depend on several factors. Thus different gas molecules have different natural ...
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Largest Hofstetter Installation
Type HOFGAS®- LPM 7000 Commissioning 2003 Site Landfill Pinto (ES) SituationOne of the Europe’s largest landfill sites is located in the Pinto region, south of Madrid, where a modern waste treatment and energy recovery system is currently being developed. Urbaser S. A. is implementing a new plant for U.T.E. Planta R.S.U. Pinto. The works consists of two different divisions; waste ...
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Comfort and safety
Type HOFGAS® - Ready/C 300 Commissioning 2004Site Moncorneil (FR) Situation Moncorneil is a medium-sized landfill near Toulouse. A heating boiler is to be operated with landfill gas and the acquired heat is used for leachate treatment. In view of the complete landfill design the customer demands a container construction with remote monitoring of the plant. Technical Requirements ...
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Utilisation of landfill gas for the generation of energy
The gases in landfill sites that develop during degradation processes, largely contribute to the greenhouse effect and additionally harbour considerable safety and health hazards. However, they are also often rich in methane and therefore a potential energy carrier. In many countries much of this potential for the generation of electricity and heat from landfill gas still exists. Furthermore, ...
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