scholarly journals Monitoring of landfill gas emission rates: application of the static chamber approach to an Italian sanitary landfill site

2010 ◽  
Author(s):  
B. Capaccioni ◽  
C. Caramiello ◽  
G. Corigliano ◽  
S. de Rosa ◽  
F. Tatàno ◽  
...  
Keyword(s):  
Landfill Gas ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Emission Rates ◽  
Gas Emission ◽  
Static Chamber

scholarly journals Fire prediction for a non-sanitary landfill “Bubanj” in Serbia

2016 ◽  
Vol 20 (4) ◽  
pp. 1295-1305
Author(s):  
Emina Mihajlovic ◽  
Lidija Milosevic ◽  
Jasmina Radosavljevic ◽  
Amelija Djordjevic ◽  
Ivan Krstic
Keyword(s):  
Methane Emission ◽  
Landfill Gas ◽  
The State ◽  
Sanitary Landfill ◽  
Emission Rates ◽  
Gas Generation ◽  
Active Section ◽  
The Difference ◽  
One Year ◽  
The City

This paper reviews the state of the ?Bubanj? landfill near the City of Nis, Serbia, which has been used for 47 years and which is categorized as a non-sanitary landfill. We utilised the LandGEM 3.02 model, used for estimating landfill gas emission rates, to calculate the amount of landfill gases. Additionally, we measured the amount and composition of landfill gas in section S4 of the landfill from July 2014 to June 2015. We utilised the ALOHA software to estimate the fire-vulnerable zone. The results of our analysis show that the measured average methane emission is higher than the calculated emission. The difference between the measured average emission and calculated emission of methane is logical, as the measurements were performed in an active section, where methane emission higher than in inactive sections is to be expected. Based on the measured methane emissions during one year, we conclude that the methane emission drops as the ambient temperature drops. This paper showcases the state of the ?Bubanj? landfill, which is highly unsatisfactory in terms of environmental and fire protection because of landfill gas generation.

scholarly journals EFFECT OF VEGETATION ON LANDFILL GAS EMISSION FROM A LANDFILL SITE

2012 ◽  
Vol 68 (6) ◽  
pp. II_139-II_146
Author(s):  
Mayu TAKAHASHI ◽  
Hirofumi NAKAYAMA ◽  
Teppei KOMIYA ◽  
Takayuki SHIMAOKA
Keyword(s):  
Landfill Gas ◽  
Landfill Site ◽  
Gas Emission

scholarly journals Post Project Environmental Monitoring and Impact Assessment - A Case of Gokarna Sanitary Landfill Site after Operation and Closure

1970 ◽  
Vol 5 (5) ◽  
pp. 60-66
Author(s):  
Sudarshan Chandra Khanal
Keyword(s):  
Water Pollution ◽  
Environmental Monitoring ◽  
Impact Assessment ◽  
Ground Water ◽  
Landfill Gas ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Ground Water Pollution ◽  
Project Analysis ◽  
Operation Phase

Environmental Assessment (EA) is the identification, prediction and evaluation of Environmental impacts. Environmental Monitoring transforms EA from a one time pre-project document to a continual assessment of impacts. Post project analysis concerns life cycle environmental management and environmental studies during project implementation. This study illustrates significance of Post project Environmental Monitoring and Impact Assessment using a factual example of Gokarna Sanitary Landfill Site (GLFS) after final operation and closure. The environmental inventory, the preventive and compensatory measures adopted by GLFS were studied and some modes of public involvement, economic measures and regulatory measures were analyzed during the construction and operation of the GLFS. Environmental inventory of the site indicated that GLFS might constitute concrete environmental conflict. The result of handpicking analysis showed that risk of medical and industrial hazardous waste cannot be excluded. Water and leachate analysis indicated that the impact of disposal is still pronounced at the site and ground water pollution may be dispersing to the general ground water flow direction. Soil analysis indicated that impact of disposal is pronounced on similar trends in two sites in landfill site. PH, BOD and COD values of leachate indicated that a good biodegradation of organic wastes (i.e. stable methane process) is going on the site and opens a potential for using landfill gas as an energy resource. The public participation, and economic measures studied through questionnaire method confirmed that during operation phase there was inadequate compliance with the planning and operational strategies at implementation that is also a major issue environmentally. There were no provisions for monitoring hazardous wastes, surface and ground water pollution and landfill gas during the operation phase. This study intends to conclude for regular Environmental Monitoring and Post project Impact Assessment for corrective actions and also for the construction and successful operation of similar projects. Possibility of Post project Environmental Monitoring and Impact Assessment in environmental policy making is also considered. Key words: Environmental monitoring; Environmental assessment; Post project analysis; Impact assessment; GLFS. DOI: 10.3126/sw.v5i5.2658 Scientific World, Vol. 5, No. 5, July 2007 60-66

Sanitary Landfill Site Selection by Remote Sensing

1980 ◽  
Vol 106 (6) ◽  
pp. 661-673
Author(s):  
Byron E. Ruth ◽  
Harold K. Brooks ◽  
Janet D. Degner
Keyword(s):  
Remote Sensing ◽  
Site Selection ◽  
Landfill Site ◽  
Sanitary Landfill ◽  
Landfill Site Selection

Design and Calibration of Chambers for the Measurement of Housed Dairy Cow Gaseous Emissions

2017 ◽  
Vol 60 (4) ◽  
pp. 1291-1300 ◽  
Author(s):  
Jessica L. Drewry ◽  
J. Mark Powell ◽  
Christopher Y. Choi
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Dairy Cows ◽  
Management Practices ◽  
Emission Rates ◽  
Gaseous Emissions ◽  
Gas Emission ◽  
Gas Emissions ◽  
Gas Leakage ◽  
Air Mixing

Abstract. The increased global demand for milk and other dairy products over the past decade has heightened concerns about the potential for increased environmental impacts. Accurate measurement of gas emissions from dairy cows is essential to assess the effects of cow diets and other management practices on both the composition and rate of gas emissions. In this article, methodologies are described to instrument, calibrate, and assess the uncertainty of gas emissions by cows housed in chambers that simulate production settings. The supply and exhaust ducts of each chamber were equipped with pitot tubes, temperature and relative humidity probes, and gas samplers to monitor airflow rates, gas composition, and gas emission rates. A Fourier transform infrared spectroscopy (FTIR) instrument was used to quantify gaseous concentrations in the gas samples on a semi-continuous basis. The measurement uncertainty of the rate of gaseous emission from the chambers was quantified, and gas concentration and differential pressure, as measured by the pitot tubes, were identified as the primary parameters contributing to gas emission uncertainties. Mass recovery tests determined that the recovery of methane from each chamber was within 10% of the released mass. Fan operating curves were experimentally determined to identify optimum differential chamber pressures to minimize gas leakage from the chambers. A computational fluid dynamics model was developed to assess air mixing patterns and define steady-state conditions. The model was validated with experimental data of air velocity within each chamber. These procedures will facilitate accurate measurement of gas emissions from housed dairy cows and provide a laboratory to test various gas mitigation treatments. Keywords: Computational fluid dynamics, Dairy, Emission chamber.

scholarly journals Case Study of Viability of Bioenergy Production from Landfill Gas (LFG)

2016 ◽  
Vol 8 (10) ◽  
pp. 165 ◽  
Author(s):  
John Vourdoubas ◽  
Vasiliki K. Skoulou
Keyword(s):  
Power Generation ◽  
Energy Production ◽  
Renewable Energy Sources ◽  
Landfill Gas ◽  
Landfill Site ◽  
Waste To Energy ◽  
Full Potential ◽  
Bioenergy Production ◽  
Crete Island ◽  
Near Future

<p>The landfill gas (LFG) produced from the existing landfill site in Heraklion city, Crete island, Greece, is not currently exploited to its full potential. It could however be exploited for power generation and/or combined heat and power (CHP) production in near future by fully unlocking its energy production potential of the gas generated from the landfill site. This gas (LFG) could feed a 1.6 MW<sub>el</sub> power plant corresponding to the 0.42% of the annually consumed electricity in Crete. The LFG utilization for power generation and CHP production has been studied, and the economics of three energy production scenarios have been calculated. An initial capital investment of 2.4 to 3.2 M €, with payback times (PBT) of approximately 3.5 to 6 years and Net Present Values (NPV) ranging between 2 to 6 M € have been calculated. These values prove the profitability of the attempt of bioenergy production from the biogas produced from the existing landfill site in Heraklion city, Crete. Based on the current economic situation of the country, any similar initiative could positively contribute to strengthening the economy of local community and as a result the country, offering several other socioeconomic benefits like e.g. waste minimization, creation of new job positions etc. by increasing, at the same time, the Renewable Energy Sources (RES) share in energy production sector etc. Apart from the favorable economics of the proposed waste to energy production scheme, all the additional environmental and social benefits make the attempt of a near future exploitation of the landfill gas produced in Heraklion, an attractive short term alternative for waste to bio-energy production.</p>

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