scholarly journals Estimating the Methane Emissions and Energy Potential from Trichy and Thanjavur Dumpsite by LandGEM Model

2021 ◽  
Author(s):  
Subramanyam Busetty
Keyword(s):  
Landfill Gas ◽  
Energy Potential ◽  
Conventional Model ◽  
Gas Emissions ◽  
Degree Of Separation ◽  
Hazardous Gases ◽  
Us Epa ◽  
Negative Impacts ◽  
Landfill Gas Emissions ◽  
Collecting System

Abstract One major factor, contributing to the emission of greenhouse gas in the environment is generation of hazardous gases in municipal landfills. Due to these potential negative impacts, it is obligatory to estimate the amount and type of landfill gasses to design and build a gas collecting system. Landfill gas emissions are governed by the type of waste, its biodegradability, its methane emission potential, the degree of separation and other miscellaneous factors. There are various US EPA recommendation model. The Landfill Gas Emissions Model (LandGEM) is one the conventional model and also provides better estimation compared to other method. It is used to the amount of gases produced in the landfills of Trichy (Ariyamangalam) landfill and Thanjavur (Srinivasapuram) landfills have been predicted. According to the results, the largest amount of landfill gas emissions would be in 1993 for Trichy (Ariyamangalam) landfill and in 2027 for Thanjavur (Srinivasapuram) landfill. The total amount of produced gas, methane and carbon dioxide would be 16.2E + 10, 8.2E + 10 and 16.2 + 10 cubic meters per year in 1993 for trichy and 13E + 6, 5E + 6 and 13E + 6 cubic meters per year in 2027 for Thanjavur.

Tracer method to measure landfill gas emissions from leachate collection systems

2010 ◽  
Vol 30 (11) ◽  
pp. 2146-2152 ◽  
Author(s):  
Anders M. Fredenslund ◽  
Charlotte Scheutz ◽  
Peter Kjeldsen
Keyword(s):  
Landfill Gas ◽  
Tracer Method ◽  
Gas Emissions ◽  
Leachate Collection ◽  
Landfill Gas Emissions

Formulating landfill gas emissions model for forecasting methane generation from waste under Iranian scenario

2021 ◽  
Vol 28 (3) ◽  
pp. 298
Author(s):  
Abbas Norouzian Baghani ◽  
Mohammad Mahdi Emamjomeh ◽  
Somayeh Golbaz ◽  
Amir Hossein Mahvi
Keyword(s):  
Landfill Gas ◽  
Gas Emissions ◽  
Methane Generation ◽  
Landfill Gas Emissions

Formulating landfill gas emissions model for forecasting methane generation from waste under Iranian scenario

2021 ◽  
Vol 28 (3) ◽  
pp. 298
Author(s):  
Somayeh Golbaz ◽  
Amir Hossein Mahvi ◽  
Mohammad Mahdi Emamjomeh ◽  
Abbas Norouzian Baghani
Keyword(s):  
Landfill Gas ◽  
Gas Emissions ◽  
Methane Generation ◽  
Landfill Gas Emissions

scholarly journals Simulation of a biogas cleaning process using different amines

2018 ◽  
Vol 27 (47) ◽  
Author(s):  
Guillermo Sepúlveda ◽  
Luis Eduardo Jaimes ◽  
Leonardo Pacheco ◽  
Carlos Alirio Díaz
Keyword(s):  
Environmental Protection Agency ◽  
Landfill Gas ◽  
Cleaning Process ◽  
Fuel Gas ◽  
Combustion Properties ◽  
The Us ◽  
Us Epa ◽  
Combustible Gases ◽  
Combustion Processes ◽  
Landfill Gas Emissions

The use of biogas generated in landfills has gained importance in developing countries like Colombia. Taking into account that this biogas presents poor combustion properties that make interchangeability with other combustible gases difficult, the elimination of gases and vapors, such as CO2 and H2O, through a cleaning process, in which the biogas is converted to biomethane, improves the biogas properties as a fuel gas for general use. In this work, we simulated the generation of biogas at El Carrasco sanitary landfill in Bucaramanga, using the US EPA (United States Environmental Protection Agency) landfill gas emissions model. Additionally, we simulated the biogas cleaning process to extract the remaining moisture using the ProMax software; for this, we used three different amines (MDEA, MEA, and DEA), followed by a glycol dehydration process. The results showed that the amine MEA produced the largest increase in the concentration of CH4 (90.37 %) for the biogas generated in the landfill. Furthermore, dehydration with glycol was an efficient process to obtain a gas with a high percentage of methane (91.47 %) and low water presence (1.27 %); this would allow the use of biomethane in conventional industrial combustion processes and power generation.

scholarly journals Avaliação econômica e do potencial energético do biogás de aterro em Campinas - SP

2019 ◽  
Vol 8 (6) ◽  
pp. e4286788
Author(s):  
Lílian Carla Ferreira Freitas ◽  
York Castillo Santiago ◽  
Natalia de Souza Ribeiro ◽  
Taís Eliane Marques ◽  
Jucimar Augusto Pinto ◽  
...  
Keyword(s):  
Landfill Gas ◽  
Waste Reduction ◽  
Gas Emissions ◽  
Reduction Model ◽  
Landfill Gas Emissions

A necessidade de um maior número de alternativas energéticas limpas somadas à problemática da coleta e disposição final dos Resíduos Sólidos Urbanos (RSU) dos grandes centros urbanos, mostra a importância da gestão destes resíduos. Neste contexto, é fundamental o aproveitamento dos gases gerados no aterramento desses resíduos. No presente trabalho é realizada uma estimativa para a produção de biogás bem como a análise da viabilidade econômica da utilização do mesmo biogás gerado em um aterro e um patio de compostagem dimensionados para a cidade de Campinas – SP, entre os anos 2018 e 2038. Para a análise das emissões provenientes dos Gases de Efeito Estufa (GEE) utilizou-se o modelo de emissões de gás de aterro sanitário, em inglês Landfill Gas Emissions Model (LandGEM), e o modelo de redução de resíduos, em inglês Waste Reduction Model  (WARM).  No WARM foram analisados três cenários, sendo que o cenário C3 apresentou a maior redução de emissões de GEE e foi a segunda melhor opção para o consumo energético. O LandGEM possibilitou uma estimativa na produção de metano (CH4), de dióxido de carbono (CO2) e outros gases. A quantidade de biogás gerada para os anos 20 anos de produção foi de 934,872,000 m3, correspondendo à vida útil do aterro. O estudo de viabilidade econômica para uma potência instalada de 4MW e considerando diferentes cenários com o preço do dólar variando entre R$2.80 a R$$5.80, mostrou que a execução do projeto é rentável. Com relação às vantagens ambientais estão a redução nas emissões de GEE e a contribuição direta para uma efetiva gestão dos resíduos sólidos em grandes centros urbanos.

Low fraction of methane in landfill gas emissions in an industrial waste landfill containing incineration ash and gypsum board waste under anaerobic conditions

2020 ◽  
Vol 38 (10) ◽  
pp. 1101-1109
Author(s):  
Yuka Ogata ◽  
Hirokazu Tanaka ◽  
Masahiro Sato ◽  
Hiroyuki Ishimori ◽  
Kazuto Endo ◽  
...  
Keyword(s):  
Industrial Waste ◽  
Landfill Gas ◽  
Operating Conditions ◽  
Ammonium Concentration ◽  
Anaerobic Conditions ◽  
Gypsum Board ◽  
Gas Emissions ◽  
Mean Values ◽  
Waste Landfill ◽  
Landfill Gas Emissions

The behaviour of carbon dioxide (CO2) and methane (CH4) emissions at the surface and below the soil cover in an industrial waste landfill under anaerobic operating conditions was evaluated for six years. This landfill contained gypsum board waste and incineration ash – a practice currently allowed because of a change in Japanese regulations. The CO2 and CH4 fluxes decreased throughout the six years of the survey. Almost all of the survey points exhibited fractions of CH4 in landfill gas emissions of <0.5 (mean values: 0.0–0.1 [surface], 0.0–0.3 [subsurface]) under anaerobic conditions. In addition, a relatively high first-order reaction rate constant for the landfill gas emissions (0.3 year−1) was observed. The landfill leachate showed a relatively high sulphate ion (SO4 2–) concentration, although other environmental conditions, such as the pH, oxidation–reduction potential and ammonium concentration, were not at levels that could have inhibited CH4 production. These findings suggest that the low fractions could have been related to the lower amounts of CH4 generation caused by competition between methanogens and sulphate-reducing bacteria (SRB). Therefore, SRB could play a major role in the degradation of organic carbon in the landfill.

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