Ayturan, Zeynep Cansu
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Ayturan, Z. C.
Ayturan, Z. Cansu
Ayturan, Zeynep C.
Ayturan, Zeynep Cansu
Ayturan, Z. Cansu
Ayturan, Zeynep C.
Ayturan, Zeynep Cansu
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Email Address
zcayturan@ktun.edu.tr
Main Affiliation
02.06. Department of Environmental Engineering
Status
Current Staff
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Sustainable Development Goals
4
QUALITY EDUCATION
0
Research Products
1
NO POVERTY
0
Research Products
11
SUSTAINABLE CITIES AND COMMUNITIES
3
Research Products
7
AFFORDABLE AND CLEAN ENERGY
1
Research Products
6
CLEAN WATER AND SANITATION
4
Research Products
13
CLIMATE ACTION
2
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
3
Research Products
2
ZERO HUNGER
0
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
4
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
3
GOOD HEALTH AND WELL-BEING
8
Research Products
5
GENDER EQUALITY
0
Research Products
14
LIFE BELOW WATER
3
Research Products
15
LIFE ON LAND
0
Research Products
8
DECENT WORK AND ECONOMIC GROWTH
2
Research Products
17
PARTNERSHIPS FOR THE GOALS
0
Research Products
10
REDUCED INEQUALITIES
0
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0
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Scholarly Output
16
Articles
8
Views / Downloads
23/43
Supervised MSc Theses
0
Supervised PhD Theses
1
WoS Citation Count
54
Scopus Citation Count
67
WoS h-index
5
Scopus h-index
5
Patents
0
Projects
0
WoS Citations per Publication
3.38
Scopus Citations per Publication
4.19
Open Access Source
12
Supervised Theses
1
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| Journal | Count |
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| Atmosphere | 2 |
| Düzce Üniversitesi Bilim ve Teknoloji Dergisi | 1 |
| ENVIRONMENTAL MONITORING AND ASSESSMENT | 1 |
| Environmental Science And Pollution Research | 1 |
| GLOBAL NEST JOURNAL | 1 |
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16 results
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Now showing 1 - 10 of 16
Article Photocatalytic Reduction of Vocs With Ag/Ni-doped Photocatalyst in Different Temperature and Humidity Environments(MDPI, 2024) Ayturan, Zeynep Cansu; Dursun, ŞükrüThe photocatalytic oxidation (PCO) process is one of the most preferred, inexpensive, and environmentally friendly methods for VOC removal. It has been determined that this method can remove a wide range of organic pollutants. The removal of benzene and toluene pollutants, two important VOCs commonly encountered in flue gases, has been studied in the scope of this study using the photocatalytic oxidation method under UVA irradiation. For this purpose, the photocatalytic activity of the photocatalyst increased by the metal/metal doping process. Two different metals, a noble metal (Ag) and a transition metal (Ni), were used together for the doping of TiO2 nanoparticles, and the photocatalysts attached to a glass surface were prepared. Four different doping percentages were used for photocatalysts: 0.5%, 1%, 2.5%, and 5%. Several PCO experiments were conducted under different temperatures (120, 150, and 180 degrees C) and humidity conditions (25 and 50%). Photocatalytic oxidation experiments were carried out with artificially produced benzene and toluene gases, and the success of the system was evaluated with respect to removal efficiency calculations. The UVA light source was used for the photocatalytic experiments. The results of the study indicated that the removal efficiencies of toluene were found to be higher than those of benzene, and the most suitable conditions were determined to be 50% humidity and a 120 degrees C environment with the use of a 1% doped photocatalyst.Article Citation - WoS: 6Citation - Scopus: 7Measurement and Evaluation of Particulate Matter and Atmospheric Heavy Metal Pollution in Konya Province, Turkey(SPRINGER, 2021) Kunt, Fatma; Ayturan, Zeynep Cansu; Yümün, Feray; Karagönen, İlknur; Semerci, Mümin; Akgün, MehmetAir pollution has negative effects on human health, visibility, materials, plants, and animal health. Particulate matters are one of the most important air pollutants that may create a risk for human health. Especially particulate matters, which are composed of heavy metals and cancer-causing chemicals such as PAH, dioxin, furan, can cause serious reactions in the respiratory tract. Heavy metals are so important because of their capability of accumulation in human tissues. Almost 0.01-3% of heavy metal content may be found in particulate matter. Coarse particulate matters (PM10) which have smaller diameters than 10 microns may enter from the respiratory system and reach the lungs. In this study, PM10 concentrations and heavy metal content (Lead, Nickel, Arsenic, Cadmium) of the samples were measured and evaluated concerning present regulations and limit values for different points in Konya Province, Turkey. The samples were taken at different seasons such as winter, summer, and spring for 16 days. According to the results of this study, in the winter season, PM10 concentration of the measurement point (Directorate Building) located at the settlement area was found the highest. In the summer season, PM10 concentration of the measurement point (Sille Junction) located at crossroads was found the highest. In spring season, maximum PM10 concentration was detected on the measurement point (KOS base station) located in the industrial area. Moreover, daily average nickel (Ni) concentration measured at KOS base station was found the highest and some other station located close to the industrial area and settlement areas were detected higher than average annual limit values in the winter period. Daily average lead (Pb) value was found at least 67% and maximum 98% higher at Sille and Besyol Junctions, but below the annual average limits. Daily average cadmium (Cd) value was mostly calculated in the Directorate Building winter measurement, but it did not exceed the limit value during the measurement periods. Daily average arsenic (As) values at Directorate Building and Karkent measurement points in the winter period were found higher than the annual average limit values. Only daily average nickel concentrations were detected higher than the annual average limits for the summer and spring period at the KOS base station measurement point.Article Citation - WoS: 6Citation - Scopus: 8Modeling and Assessment of Pm10 and Atmospheric Metal Pollution in Kayseri Province, Turkey(MDPI, 2023) Kunt, Fatma; Ayturan, Zeynep Cansu; Yumun, Feray; Karagönen, Ilknur; Semerci, Mumin; Akgün, MehmetAir pollution has numerous detrimental consequences for human health, visibility, climate, materials, plant health, and animal health. A portion of air pollution consists of metals, which are emitted into the environment via the combustion of fossil fuels, industrial activities, and the incineration of metal-containing products. In this work, the particulate matter and particle-related metal pollution from various sources, in the Turkish province of Kayseri, were determined. AERMOD modeling was also used to examine the distribution of PM10 around the Kayseri Organized Industrial Zone (OIZ). Particulate matter (PM10) samples were collected using MCZ dust collecting devices at six monitoring locations mainly affected by residential heating (Hurriyet, Talas, and Kocasinan), industry (OIZ), and traffic (Tramway and Cumhuriyet) during the autumn/winter months and at three monitoring locations mainly affected by residential heating (Kocasinan), industry (OIZ), and traffic (Tramvay) during the spring months. ICP-MS analysis was used to assess the concentrations of the heavy metals (Pb, As, Cd, and Ni) in samples collected over 6 different time periods of 16 days each. During the autumn/winter months, the concentrations of Pb near roadways were found to exceed the Air Quality Assessment and Management Regulation of Turkey (AQAMR) limit value. During all the sampling periods, the Ni and Cd concentrations were below the AQAMR limit values. At the points associated with winter heating, the concentrations exceeded the AQAMR limit value, which may result from coal combustion.Conference Object Life Cycle Impact Assessment and Economic Evaluation of Material Cutting Technologies(Univ Porto, Fac Economics, 2022) Öztürk, Elif Göksu; Ayturan, Zeynep CansuAll industries create a certain amount of waste and burden to the environment for manufacturing. As sustainability has gained prominence lately, reducing the environmental impacts in manufacturing has become a must. Life cycle assessment (LCA) is a common method to measure the environmental effects of a manufacturing operation. Material cutting is a manufacturing procedure to obtain the final substance ready to be used regarding its shape and size and is widely used in several industry lines. Certain technologies conduct the cutting process, such as WaterJet and Laser. Evaluating material cutting methods for their environmental outputs is also necessary with the rising awareness of environmentally friendly technologies. Thus, WaterJet and Laser cutting technologies are compared within the scope of LCA in this work. In addition to the LCA, economic evaluation is required to overcome heterogeneities among different industries that use the same technology. Thus, the two technologies are also evaluated regarding their operating costs. To the best of our knowledge, no work compares these two technologies from these perspectives before. Our results showed that the replacement of WaterJet by Laser could lessen the cost of material cutting both environmentally and economically.Conference Object Cleaner Production Solutions For Abrasive Waterjet Cutting System(Kocaeli Üniversitesi, 2022) Ayturan, Zeynep Cansu; Dursun, ŞükrüWaterjet technology is one of the fastest-growing machining processes used for cutting metal to depths over 100 mm. It is used in a wide range of industries from automotive and aerospace to medical and food industries. The impact of the water alone is enough to machine material, however, with the addition of abrasive, the material removal rate in the process is several orders of magnitude higher. Therefore abrasıve waterjet cuttıng system (AWJC) was developed for better performance. In the AWJC, an abrasive material is used in the cutting process to increase cutting efficiency for harder materials. The abrasive material is mixed with water. Mixing means gradual entrainment of abrasive particles within the water jet and finally, the abrasive water jet comes out of the focusing tube or the nozzle. During the mixing process, the abrasive particles are gradually accelerated due to the transfer of momentum from the water phase to the abrasive phase and when the jet finally leaves the focusing tube, both phases, water and abrasive, are assumed to be at the same velocity. Consumables in this process include water, abrasive, orifice, and mixing tubes. The cutting head is the main part of the machine where cutting occurs. In this study, a company using the AWJC system was visited and environmental problems with wastewater handling, abrasive material sludge, and waste cut materials were detected. To solve these problems, three applicable cleaner production solutions have been offered such as recycling of abrasive material, recycling of water, and good housekeeping applications.Conference Object Determination of Priority Classes in Water Protection Zones of Lechtingen Area by Gis(2020) Ayturan, Zeynep Cansu; Dursun, ŞükrüWater protection zones are mainly established for protecting different types of water sources such as surface water, coastal water, and groundwater. Many European countries use these areas to evaluate the potential contamination risk encountered by the water sources. Germany has described three different water protection zones changing with respect to the types of water sources. Zone I covers the immediate water catchment area within a radius of at least 10 meters. Zone II covers the area of zone I and distance which has been reached by the contaminant up to 50 days. Zone III is more comprehensive than others. It covers the area from Zone II to the very edge of the catchment area of the water source. Determination of priority classes in water sources is important to evaluate the risk of contamination. In this study, priority classes for nitrate leaching, which is dangerous for health if it is found higher levels in a drinking water source, in the water protection zones found in Lechtingen area of Osnabrück, Germany was determined with geographic information system (GIS). The data of nitrate leaching risk, land use, and water protection zones in that area were used to make evaluation about priority classes. As a result, almost 40% percent of the area found as a high priority against nitrate leaching.Article Cam Yüzeye Ag ve Ni Nano Parçacıkların Tutunmasına Hazırlama Tekniğinin Etkisi(2020) Dursun, Şükrü; Ayturan, Zeynep CansuNano malzeme üretimi günümüz dünyasının gelişen konularından bir tanesidir. Bu malzemelerin hazırlanması amacıyla kullanılan hidrotermal, ıslak emdirme gibi birçok yöntem bulunmakla birlikte bunlardan en çok tercih edileni sol-jel yöntemidir. Sol-gel yönteminde, bir öncü malzeme uygun bir çözücü içinde çözülür. Belirli bir karışım periyodunun ardından elde edilen sol üretilmek istenilen malzemeye göre işlemden geçirilir. Bu çalışma kapsamında sol-jel yöntemi kullanılarak nano parçacıklar üretilmiş ve cam yüzeye daldırma ile kaplama yöntemi kullanılarak kaplanmıştır. Temel nano malzeme olarak TiO2 içeren sol daha önceden denenmiş bir teknikle hazırlanmıştır. Doplama amacıyla Ag ve Ni içeren başka bir sol daha hazırlanarak karışmaları sağlanmıştır. Bu sol’ün hazırlanması sırasında karışım periyodu, kimyasal ilave sırası, çeşidi, molar oranları ve miktarları gibi parametrelerde değişiklikler yapılarak elde edilen son ürün üzerindeki tutunma yüzdeleri kıyaslanmıştır. Toplamda 8 adet deneme yapılarak cam yüzeye kaplanmıştır. Nano parçacıkların hazırlanmasında kullanılan bu denemelerin sonuçları, enerji yayılımlı X-Işını (EDX) analizlerine göre Ag ve Ni' nin cam yüzeyinde tutunma konsantrasyonlarına bakılarak karşılaştırılmıştır. Bunun yanı sıra ilk 5 deneme için X-ışını kırınım (XRD) analizleri de yaptırılmış ve elde edilen kırınım grafikleri de dikkate alınarak yorumlanmıştır. Çalışma sonucunda denemelerin çoğunluğunda yüksek yüzdelerde tutunma oranları elde edilmiştir. Hazırlama sırasında kullanılan kimyasal ve reaktif sayısının son ürünü ciddi şekilde etkilediği ve kompleks bileşik oluşumuna sebep olabileceği ve yüzeydeki Ag ve Ni tutunmasına en çok etki eden faktörlerin doplanan bileşik yüzdesi, sol içerisine kimyasal ekleme sırası ve sol içerisinde kullanılan kimyasalların molar oranları olduğu tespit edilmiştir.Article Citation - WoS: 19Citation - Scopus: 26Short-Term Prediction of Pm2.5 Pollution With Deep Learning Methods(GLOBAL NETWORK ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2020) Ayturan, Y.A.; Ayturan, Zeynep Cansu; Altun, H.O.; Kongoli, C.; Tuncez, F.D.; Dursun, Şükrü; Öztürk. AliParticulate matter (PM), classified according to aerodynamic diameter, is one of the harmful pollutants causing health damaging effects. It is considered as cancerogenic by the World Health Organization (WHO) because of the substances found in the chemical composition of PM. In this study, short-term prediction of PM2.5 pollution at 1, 2 and 3 hours was modelled using deep learning methods. Three deep learning algorithms and the combination thereof were evaluated: Long-short term memory units (LSTM), recurrent neural networks (RNN) and gated recurrent unit (GRU). Air Quality Monitoring Stations of the Ministry of Environment and Urbanization of Turkey were utilized to obtain the data. Specifically, meteorological and air pollution data were obtained from a monitoring station located in Kecioren District of Ankara. Several trials were conducted using different combinations of RNN, GRU and LSTM models. Pollutant concentrations and meteorological factors were integrated into the model as input parameters to predict PM2.5 concentration for 1, 2 and 3 hours. Best results with R-2 of 0.83, 0.7 and 0.63 for 1, 2-, and 3-hour predictions, respectively, were obtained by using a combination of GRU and RNN models. The results of this study are promising for explaining the effect of different deep learning models on prediction performance.Conference Object Homemade Dip Coating Machine for Thin Films(Sage Publication, 2019) Ayturan, Zeynep Cansu; Ayturan, Yasin Akın; Dalkılıç, Emre; Dursun, ŞükrüIn recent years, the use of thin films for several purposes has been increased rapidly. The performance of thin film coated on the material is related to the sensitivity of electronic dip coating devices. Especially, the differences in production techniques and production conditions reveal many features in thin films. With the development of technology, new production technologies and techniques that may be alternative to each other in the production of thin films have been emerged and developed. Although the sol-gel dipping method does not have a very old history, it has been an important technique for gaining new properties to glass and ceramics. In this study, the production, software, design and sensitivities of the device used in dip coating technique, which is one of the sol - gel coating techniques, were taken as the main issues. A new device has been developed to coat glass sheets of 50 cm long and produce substantially transparent conductive layers. In this new device, glass carrier arm is used to dipping them into a solution at a certain speed, waiting certain time period and removing them at the same speed in order to coat the surface with the colloidal suspensions formed by the solid particles in the prepared liquid named as sol. The device has been designed in laboratory environment, the software has been developed for arranging speed and waiting time period with manual and Bluetooth control. The performance of homemade dip coating device was evaluated according to optic and atomic force microscopy images and thin film thickness determined with special equation. According to the results, the film thickness of coated samples was almost 7 micrometres and the surface of the films was observed smooth with cracks.Conference Object Indoor Formaldehyde Emission in Air and Health Impacts(Sage Publication, 2019) Kunt, Fatma; Ayturan, Zeynep Cansu; Dursun, Şükrü; Mankolli, HysenIn this review, formaldehyde emission sources in indoor air and its effects on human health are examined. The most important sources of formaldehyde compound, which has several different varieties, have many different usage areas such as kitchen materials, binders in wooden materials and chemical materials. Nowadays, people spend most of their time in a closed environment. There are 3 kinds of formaldehyde according to usage area. Formaldehyde is polymerized to produce urea formaldehyde, melamine formaldehyde and phenol formaldehyde. These substances are volatile and have harmful effects on indoor air.
