Chemical and Microbiological Air Quality in a Municipal Solid Waste Landfill and Its Surroundings, in South-Eastern Romania

The aim of this study was to assess the microbiological and chemical air quality in a municipal solid waste landfill and its inhabited surroundings, in a particular context in which Romania struggles with the incapacity to comply with its environmental commitments. The research was conducted on a landfill near the capital Bucharest between November 2018 and September 2019. To evaluate the chemical (oxygen, carbon dioxide, methane, hydrogen sulfide, ammonia and carbon monoxide–MX6 iBrid™ Détector multigas) and microbiological (airborne bacteria and fungi–aspiration method) parameters, eight sampling points were established, located both on the perimeter of the landfill and within its surroundings. CO and CH4 were not detected in any of the sampling points, during the study period; O2 was in normal values 20.09–21.05%; CO2 had a maximum average concentration of 620 ± 215; H2S had values between 0.1 and 5.0 ppm only in the sampling points inside the landfill; NH3 was present only once in a single sampling point with values between 1.0 and 3.0 ppm. The microbiological results provide an overview of the total plate count and total fungal count, with no significant differences between the level of contamination inside the landfill and within its surroundings (p > 0.05). Ten bacterial species and fungi from six genera have been identified. It was also found that the number of microorganisms in the air was significantly lower during the winter, spring and early summer months compared with the late summer and autumn months (p < 0.05).

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Odour and VOC impact assessment and air quality monitoring program at a municipal solid waste landfill

Water Practice & Technology ◽

10.2166/wpt.2009.032 ◽

2009 ◽

Vol 4 (2) ◽

Cited By ~ 2

Author(s):

R. Leduc ◽

B. Fécil ◽

C.E. Leconte ◽

Y. Normandin ◽

T. Pagé

Keyword(s):

Air Quality ◽

Municipal Solid Waste ◽

Impact Assessment ◽

Solid Waste ◽

Monitoring Program ◽

Quality Monitoring ◽

Air Quality Monitoring ◽

Municipal Solid Waste Landfill ◽

Waste Landfill ◽

Sampling Campaign

The scope of this paper is to present and compare the results of (1) an extensive odour, VOC and H2S impact assessment, and (2) a complete odour, VOC and H2S air quality monitoring program at a municipal solid waste landfill (MSWL). This study was conducted over a year, with an unprecedented amount of cross-assessment techniques and data points on a 1.3 million tonnes per year MSWL. All potential landfill emission sources were characterized for odours, VOCs, CH4 and H2S using a set of over 150,000 onsite samplings & measurements. An air quality monitoring program included continuous odour, CH4 and H2S monitoring, a 12-day-frequency VOC sampling campaign, and a 24h/7d odour survey at the nearest receptors. This paper will present the standardized methodologies used and comparative results from each independent assessment program.

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Characterization of Aromatics at Working Surface of a Municipal Solid Waste Landfill

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.768.458 ◽

2015 ◽

Vol 768 ◽

pp. 458-464

Author(s):

Kai Yun Zhao ◽

Dong Bei Yue ◽

Ting Yang

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Emission Rate ◽

Surface Concentration ◽

Average Concentration ◽

Fugitive Emission ◽

Rapid Urbanization ◽

Municipal Solid Waste Landfill ◽

Waste Landfill ◽

Working Surface

With the rapid urbanization and economic growth in China especially near 2 decades, the vast amount of municipal solid waste (MSW) were produced annually. Landfills are the predominant disposal sites for MSW in China, receiving more than 75% of the collected MSW every year. While the volume concentration is usually less than 1%, NMOCs are generally considered as the main source of the odorous problem at MSW landfills, because they include many compounds with very low odor thresholds. What’s more, aromatics is vital part of NMOCs for its toxic effect, which contains Benzene. The main objective of this study was to understand the comprehensive behavior of aromatics of landfill gas. In this work we present an integrated evaluation of working surface concentration distribution and emission rate of a municipal solid waste landfill. And in order to understand the transportation of aromatic, a new parameter was introduced to analyze this process. Thus, result shows, the fugitive emission of aromatics in the operating surface may need pay more attention. The highest average concentration for aromatics was found in autumn. Aromatic’s emission rate in winter was larger than autumn, the highest emission rate of aromatics toluene, 0.011g/m2/h. The B:T ratio in winter was significant higher that of other seasons.

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