Browsing by Author "Tüfenkçi, Ş."

Now showing 1 - 4 of 4

Determination of Heavy Metal Pollution Caused by Motor Vehicles: Şanlıurfa-Viranşehir Highway Example
(Centenary University, 2016) Öztemel, Z.; Tüfenkçi, Ş.; Çakmakci, T.
The purpose of this study was to determine the distance dependent changeability of heavy metal accumulation in the soil along highways, which is caused by vehicle traffic. Soil samples were taken along North and South side of the highway at 6 seperate sites with 2 km distance, from points 0, 15, 30 and 60 meter distance from the highway at each site in Şanlıurfa- Viranşehir. Four samples were taken from 0-15 cm depth at each point, making a total of 96 measurements. Obtained results were evaluated statistically and lead, nickel, cadmium, cupper, chrome and zinc values were found inside permissible limits depending on distance. It was also observed that the heavy metal concentration decreases with increasing distance away from the highway. These results suggest that the pollution in the samples was caused by vehicle traffic. © 2016, Centenary University. All rights reserved.
Effects of Arbuscular Mycorrhiza Fungus Inoculation and Phosphorous and Nitrogen Fertilizations on Some Plant Growth Parameters and Nutrient Content of Soybean
(2006) Tüfenkçi, Ş.; Sönmez, F.; Şensoy, R.I.G.
The aim of the agricultural production is to best supply the human requirements. This study aimed to investigate the effects of Glomus intraradices Schenk and Smith (Arbuscular Mycorrhiza Fungus = AMF) inoculation and Phosphorous (P) and Nitrogen (N) fertilizations on the some plant characteristics and nutrient content of soybean (Glycine max L. Amsoy-71). At the end of the study, while there were significant effects of inoculation on the plant height, the fresh and dry weights of shoots and phosphorous, potassium, calcium, zinc and copper contents in shoots, there was no significant effect on the nitrogen, magnesium, iron and manganese contents in shoots. Inoculation decreased the contents of magnesium and copper. Increasing doses of phosphorous and nitrogen applications significantly increased the plant height, the fresh and dry weight in shoots and the contents of nitrogen, phosphorous, iron, manganese and copper. © 2006 Asian Network for Scientific Information.
Management of Clean Water and Wastewater Sources in Van Agricultural Areas
(Centenary University, 2016) Çakmakci, T.; Şahin, Ü.; Kuşlu, Y.; Kiziloğlu, F.M.; Tüfenkçi, Ş.; Okuroğlu, M.
Van province territory constitutes 2.5% of Turkey’ land with land of 19.069 km2 and is located in a position approximately 374.500 hectares of agricultural land. Although having potentially for irrigation, only 50 % of the agricultural land (260.000 ha) colud be irrigated. For non-irrigated areas, the low quality of water, inadequate irrigation water, and difficulties in delivering water to fields and lack of investment for the closed transport system can be considered as limiting factors. Total 4 dam lakes (reservoir), including one under constructions and nearly 15 lakes and ponds are situated in the provincial border. As waste water potential, treatment plants in city have been active in 5 of them and 2 of them are under construction. Annually 60 million tons of sewage waste water is discharged into rivers and Lake Van by Van province sewer line. By using this water for agricultural purposes, a certain amount of water will be provided to non-irrigated areas. In this study, with the current water situation in agricultural areas of Van province potential use of irrigation water and waste water. © 2016, Centenary University. All rights reserved.
Wastewater Treatment in Constructed Wetlands and Suggestions for the Use of Constructed Wetlands in Cold-Climate Regions
(Centenary University, 2017) Çakmakci, T.; Şahin, Ü.; Kiziloğlu, F.M.; Tüfenkçi, Ş.; Kuşlu, Y.; Erkuş, F.Ş.
In recent years, the depleting water resources in response to the increasing need for water along with increase in population have led researchers to search new water resources. Among these sources, the most spectacular one is the use of polluted waters after treatment. One of the alternative methods for the treatment of wastewaters is constructed wetlands. This treatment mechanism is preferred due to its effectiveness in the removal of pollution and pathogen microorganisms as well as its economic contribution. Constructed wetlands are widely used in regions with warm climates, while in cold climate conditions, low temperatures result in decreased treatment efficiency. In this study, the use of constructed wetlands in cold climate conditions has been reviewed and necessary suggestions reported. © 2017, Centenary University. All rights reserved.