Civil Engineering / İnşaat Mühendisliği
Permanent URI for this collectionhttps://hdl.handle.net/11147/13
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Conference Object Drainage Waters Affected by Pyrite Oxidation in an Open Pit Coal Mine in Can Region, Nw Turkey(IAH Australia, 2013) Şanlıyüksel Yücel, Deniz; Baba, Alper; Şengün, Fırat; Yücel, Mehmet AliThe Yiğitler Mine is abandoned open pit coal mine in Can Region, nortwestern Turkey, about 46 km east of Çanakkale city...Conference Object Monitoring of Acid Mine Lakes by Unmanned Aerial Vehicle (uav) on Geographic Information System (gis) Around Can Region, Biga Peninsula, Nw Turkey(Muğla Sıtkı Koçman Üniversitesi, 2014) Yücel, Mehmet Ali; Şanlıyüksel Yücel, Deniz; Turan, Recep Yavuz; Baba, AlperIn the past three decades, a few small scale private enterprises have been operating around Can Region, Biga Peninsula, NW Turkey which is rich in lignite reserves. They have abandoned the operation land without providing any working of rehabilitation. during the operation of high sulfur content lignite, the topography have been damaged and this caused the large holes and deterioration in these areas. As a result of discharge of surface water the artificial lakes have been formed. In the course of the time, these lakes gain acidic character due to acid generation from pyrite oxidation. Significantly high acidity with low pH values ranging from 2.53 to 3.05 is recorded from AMLs.Article Citation - WoS: 20Citation - Scopus: 23Change Detection and Visualization of Acid Mine Lakes Using Time Series Satellite Image Data in Geographic Information Systems (gis): Can (canakkale) County, Nw Turkey(Springer Verlag, 2014) Şanlıyüksel Yücel, Deniz; Yücel, Mehmet Ali; Baba, AlperCan, a county in the province of Canakkale, is one of the most prominent coal mining districts in Turkey. Many mining companies have been operating coal deposits for power generation and district heating in this region since 1980. Generally, small and medium-scale mining companies operate for short periods and abandon the operational land without providing any rehabilitation. Human intervention in the natural structure and topography of the earth surface causes large holes and deterioration in these areas. Artificial lakes occur because of surface discharge and underground leakage into abandoned open pit mines with high lignite sulfur content (0.21–14.36 wt %). Furthermore, these lakes gain acidic character due to acid generation from pyrite oxidation. Acid mine lakes are highly acidic (pH < 3.05) and have elevated concentrations of (Formula presented.), Fe and some metals. The main objective of this study is to evaluate the environmental conditions and demonstrate the development of a monitoring system for their possible changes in the acid mine lakes of the open cast lignite mining area on a regional scale. For this purpose, the data received from remote sensing satellites were used. Areal change detection and perimeter changes of nine acid mine lakes caused by coal mining companies in Can from 1977 to 2011, were determined using Landsat, Quickbird and Worldview satellite images. As a case study, an area of 9 km2 was chosen for the variety of acid mine lakes. Using GIS software, satellite images were analyzed in time series, borders of acid mine lakes were digitized and converted into vector data format. At this stage, prior to the digitization, in order to create contrast on the satellite images, “stretch type” and “stretch values” were changed. The areal and perimeter changes were computed and presented via tables and graphics. In addition, thematic maps of the acid mine lakes were created and visualized. The results show that the number of acid mine lakes increased and these caused environmental risks due to their hydrochemical properties and areal increments.