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Determination of Methane Explosion Level in the Velekince Municipal Solid Waste

100%

Berisha A. , Osmanaj L.

Ecological Engineering & Environmental Technology

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2021

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tom Vol. 22, iss. 5

82--88

EN

Management of the sanitary landfills represents one of the main challenges of the waste sector in Kosovo. At present, around 70% of the waste is disposed in sanitary landfills under semi-anaerobic conditions without gas collections. Non-adequate management of the sanitary landfills is a common practice of the waste management in the country. The paper presents determination of the explosion level of the methane in the Velekince municipal solid waste sanitary landfill. The methane concentration measurements from three different passive degassing wells of the landfill during the four months period (June-October 2017) were performed by using a portable combustible gas meter 8800B. In contrast to the degassing point (well 2) where maximal concentration of 29,200 ppm corresponding to 58.4% of low explosion level for methane was recorded, degassing point (well 3) showed a minimal concentration of 2.700 ppm and 5.4% of low explosion level, speaking for various waste structure distribution and phase of biodegradation of the deposited material. The results recorded show that the concentration of methane is within the lower explosive limits. Control measures and installing a ventilation system in the landfill are recommended.

2

The Journey of Establishing Groundwater Source Protection Zones in Kosovo on the Example of Lipjan/Lipljan Municipality

80%

Osmanaj L. , Hajra A. , Berisha A. , de Beyer T.

Ecological Engineering & Environmental Technology

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2021

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tom Vol. 22, iss. 3

20--26

EN

In the past decade, the Rural Water and Sanitation Support Program in Kosovo (RWSSP) funded by the Swiss Agency for Development and Cooperation (SDC) has significantly increased the access to public water supply of the rural population of Kosovo. Currently in Phase VI, the programme is supporting the regional water companies of Kosovo to protect the water resources used for public water supply. This article presents the programs phase VI output 2.5.1: improved water source protection. The programme started to support the first implementation of a ground water protection zone (locally called sanitary protection zone) in Kosovo according to laws and through a systematic process. This article describes the full process of establishing sanitary protection zones for public groundwater wells in Kosovo and reveals the technical and administrative challenges and lessons learned when doing so. The technical investigations require detailed surveys starting from geological, hydrogeological and morphological field work as well as monitoring of groundwater levels, realization of additional piezometers, calculation of hydrogeological parameters and several more. For the Lipjan well field, a hydrogeological computer model was established to understand groundwater flow and to delineate the three necessary groundwater source protection zones. The technical understanding further requires a pollution survey and water quality analysis.

3

Determination of Groundwater Protection Zones of the Pozharan Wellfield Using Hydrogeological Modflow Model

80%

Osmanaj L. , Hajra A. , Berisha A.

Journal of Ecological Engineering

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2021

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tom Vol. 22, nr 3

73--81

EN

This article concerns the calculation of the Groundwater Protection Zones (GWPZ) of the Pozharan/Požaranje wellfield. It shows the methodology of delineating water source protection zones with a hydrogeological computer model and serves as an example for further work in this field. The wellfield is located in the south-eastern part of Kosovo, about 1 km west of Viti/Vitia and is an important water supply source for the neighboring villages. The wellfield is located 35 km southeast of Prishtina/Priština, the capital city of Kosovo. A total of four public water production wells have been drilled into the aquifer for which the protection zones will be calculated. In order to delineate the Groundwater Protection Zones according to the Kosovar regulations, a groundwater model was set up to calculate the groundwater flow in the well field. Data has to be collected to create such a model. With help of previous studies and own investigations, the aquifer was identified. A large part of the work is finding observation wells (piezometers) in the study area and measuring its height and groundwater level. Afterwards, the model was calibrated. The model is capable of calculating flow paths and by means of particle tracking, it is possible to visualize where the water comes from. Adding the speed of groundwater flow, the time dependent zones can be drawn. Finally, the three protection zones were described as well as the proposed land use restrictions and the recommendations for land use planning were described. Several hazards to groundwater were identified and described inside those zones.

4

Estimation of Methane Emissions from Mirash Municipal Solid Waste Sanitary Landfill, Differences between IPPC 2006 and LandGEM Method

80%

Dimishkovska B. , Berisha A. , Lisichkov K.

Journal of Ecological Engineering

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2019

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tom Vol. 20, nr 5

35--41

EN

This paper deals with the estimation of methane emissions from the Mirash municipal solid waste sanitary landfill. The methane emission was calculated according to two different methodologies, namely, IPCC 2006 and LandGEM. Within the framework of the research, the following parameters were evaluated: the amount of landfilled waste, landfill characteristics, and composition of landfilled waste as well as the climate conditions prevailing in the region. According to the IPCC methodology, the total amount of methane emitted from the Mirash landfill during the period 2006–2017 was 30.57 Giga grams (Gg), while according to the LandGEM methodology, the total amount of methane emitted from the Mirash landfill in the period 2006–2017 was 26.32 Giga grams (Gg). The total mass of CH4 in the Mirash regional landfill for the years 2018–2025 is projected to be 53.74 Gg according to the IPCC method, while according to LandGEM method, the projection points to 50.74 Gg. This study was carried out for the sanitary landfill for solid waste management in Mirash, Prishtina Region, in the Republic of Kosovo, during the year of 2018.