Yılmaz Çinçin, Roda Gökçe
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Yılmaz Cincin, Roda Gökçe Yılmaz Çinçin, R. G. Cincin, R. G. Yilmaz Yılmaz Cincin, Roda Gökçe Çinçin, Roda Gökçe Yılmaz
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rgokcey@pau.edu.tr
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10.01. Environmental Engineering
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1NO POVERTY
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2ZERO HUNGER
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3GOOD HEALTH AND WELL-BEING
1
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4QUALITY EDUCATION
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5GENDER EQUALITY
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6CLEAN WATER AND SANITATION
3
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7AFFORDABLE AND CLEAN ENERGY
2
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8DECENT WORK AND ECONOMIC GROWTH
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
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10REDUCED INEQUALITIES
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11SUSTAINABLE CITIES AND COMMUNITIES
5
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
6
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13CLIMATE ACTION
2
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14LIFE BELOW WATER
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15LIFE ON LAND
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16PEACE, JUSTICE AND STRONG INSTITUTIONS
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17PARTNERSHIPS FOR THE GOALS
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3
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10
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Scholarly Output
10
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4
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1
WoS Citation Count
8
Scopus Citation Count
10
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WoS Citations per Publication
0.80
Scopus Citations per Publication
1.00
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4
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1
| Journal | Count |
|---|---|
| Proceedings of The 6th Eurasia Waste Management Symposium, Ewms 2022 | 4 |
| Biomass Conversion and Biorefinery | 1 |
| Environmental Research and Technology | 1 |
| PAMUKKALE UNIVERSITY JOURNAL OF ENGINEERING SCIENCES-PAMUKKALE | 1 |
| Waste and Biomass Valorization | 1 |
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Conference Object Treatability of landfill leachate using three-stage hybrid system(Mehmet Sinan Bilgili, 2022) İrem Erbaş, Ayca; Yılmaz Cincin, Roda Gökçe; Agdağ, Osman NuriLeachate, which is one of the most important problem arising from sanitary solid waste landfills, reaches the bottom by leaking from solid waste and has high pollution. The leachate collected from the drainage system at the bottom of the landfill should be treated by undergoing appropriate physical, chemical, and biological treatments and by choosing the most appropriate treatment system, in order to meet the discharge standards given in the Water Pollution Control Regulation. Different treatment methods are used for the treatment of leachate. The objective of the study is treatment of leachate to access discharge criteria to the receiving environment. The treatability of leachate taken from the Denizli Metropolitan Municipality Solid Waste Landfill has been studied in a three-stage hybrid system. In this system, as a first step, a cylindrical upflow anaerobic sludge blanket reactor (UASB) made of stainless steel was used with a diameter of 15 cm and a length of 100 cm. A continuous stirred tank reactor (CSTR) made of stainless steel with a volume of 3 l is positioned at the exit of the UASB. Afterwards, treatment was carried out in a pilot scale constructed wetlands reactor. At the end of each stage, chemical oxygen demand (COD), biochemical oxygen demand (BOD), pH, and temperature parameters were examined. The amount of gas formed in the UASB reactor and the percentage of methane were measured. Heavy metal analyzes were made in the final effluent.Conference Object Rehabilitation methods for open dumps and its global applications: SMARTEnvi Eu project(Mehmet Sinan Bilgili, 2022) Agdag, O. N.; Cincin, R. G. Yilmaz; Toprak, S.; Kaplan, Y.; Degirmenci, R.; Agdag, F.; Gebes, S.; Cetin, B.; De Angelis, E.; Pikon, K.; Kujumdzieva, A.; Petrova, V.; Panaitescu, C.; Frulla, D.; Dal, O.; Balcik, C.; De Angelis, K.; Dinu, F.; Nedeva, T.; Bogacka, M.A European Union project called 'Smart Decision Tools for Reducing Hazards to Our Environment and Water Resources by Rehabilitating Open Dumps (SMARTEnvi)' is underway related to the rehabilitation of MSW open dumps. This project aims to develop pilot, and test innovative digital tools for reducing hazards to the environment and water resources by rehabilitating open dumps via training methods and materials using competence tool, multilingual e-learning-platform, learning modules, and smart guidance manual. The topic of one of the learning modules is about rehabilitation methods and engineering applications. The rehabilitation methods for open dumps and its global applications, which will be discussed in this study, will be an output of the mentioned learning module of SMARTEnvi project. Different methods have been used for the rehabilitation of open dump sites. In situ rehabilitation, rehabilitation after mechanical separation, and rehabilitation by waste transportation are mainly rehabilitation methods. The open dump rehabilitation process mainly includes condition assessment, planning, and implementation steps, regardless of which method is used. In the rehabilitation process, surface water and leachate control system and gas drainage systems can be listed as processes that should be applied during rehabilitation. During the rehabilitation method, the state and the needs of the open dump and the surrounding settlements should be considered. The effective parameters related to method selection are location, size of the area, amount of solid waste disposed at open dump sites, and nearness to underground and surface waters. In addition, rehabilitation cost is also an important parameter. In this study, different rehabilitation methods and some common global applications of these methods will be explained.Doctoral Thesis Lignin içeriği yüksek tarımsal atıkların gazlaştırılmasıyla hidrojence zengin sentez gazı üretimi(2025) Yılmaz Çinçin, Roda Gökçe; Çinçin, Roda Gökçe Yılmaz; Ağdağ, Osman Nuri; Öngen, AtakanKüresel enerji talebindeki artış ve fosil yakıt rezervlerinin tükenmesi, yenilenebilir enerji kaynaklarına geçişi hızlandırmıştır. Biyokütle, sürdürülebilir enerji üretiminde önemli bir kaynak olarak öne çıkmakta ve çevresel sürdürülebilirlik hedeflerine katkıda bulunmaktadır. Bu çalışmada, Türkiye’nin lavanta ve kekik distilasyon atıklarının gazlaştırma yöntemiyle enerjiye dönüştürülme potansiyeli araştırılmıştır. Aromatik bitkilerin distilasyon atıkları, yüksek lignoselülozik içerikleri ve enerji potansiyelleri ile dikkat çekmektedir. Ancak bu atıklar, biyolojik olarak kolayca parçalanamamakta ve atık yönetimi açısından sorun oluşturmaktadır. Yukarı akışlı sabit yataklı bir gazlaştırıcı kullanılarak, 700℃, 800℃ ve 900℃ sıcaklıklarında ve 0,05–0,4 L/dk gazlaştırma ajanı debilerinde deneyler gerçekleştirilmiştir. Hammadde karakterizasyonu için TGA, FTIR, XRD, XRF ve elementel analizler uygulanmıştır. Ayrıca kalsine dolomit, traverten ve mermer katalizörlerinin katran azaltımı, karbon dönüşüm oranı ve sentez gazı kalitesine etkileri incelenmiştir. Lavanta atığının uçucu madde içeriği %88,49, kekik atığının ise sabit karbon oranı %21,4 olarak belirlenmiştir. Sonuçlar, kalsine traverten katalizörünün tar oluşumunu %80’e kadar azalttığını ve sentez gazındaki H2 ile CO oranlarını artırdığını göstermiştir. Optimum koşullarda sentez gazının enerji içeriği 5,8 MJ/Nm³, karbon dönüşüm oranı %85,59 ve soğuk gaz verimliliği %68,5 olarak ölçülmüştür. Ayrıca katı kalıntılar, %0,24 kül içeriği ve 900 m²/g’ye kadar yüzey alanı ile ileri malzeme uygulamaları için uygun bulunmuştur. Bu çalışma, aromatik bitki distilasyon atıklarının gazlaştırma yoluyla yenilenebilir enerji kaynağı olarak kullanılabilirliğini göstermektedir. Mermer ve traverten atıklarının gazlaştırma çalışmalarında etkili katalizörler olarak kullanılabileceğini ortaya koymaktadır. Bu yaklaşım, atık yönetimi sorunlarına çözüm sunarken enerji arzını artırmakta ve çevresel sürdürülebilirlik hedeflerini desteklemektedir.Conference Object Biodegradation of high cellulose-lignin content agricultural wastes in bioreactors(Mehmet Sinan Bilgili, 2023-09-30) Kılıç, Yonca; Yılmaz Cincin, Roda Gökçe; Agdağ, Osman NuriBioreactor landfills are a solid waste disposal method that supply rapid solid waste degradation and methane acquirement. Bioreactors in which leachate circulation is carried out are generally operated anaerobically. However, they can also be operated under different operating conditions, depending on the type of solid waste. The biodegradation of wastes with high lignin and cellulose content is very difficult. Especially in anaerobic conditions (moreover, if there is a lack of moisture), such wastes almost never decompose. In this study, the degradation of agricultural solid wastes which are difficult to biodegrade and have high lignin-cellulose content, and the production of methane gas in semi-aerobic bioreactors have been investigated. For this purpose, two laboratory scale stainless steel simulated bioreactors were used. Sunflower stalk, which is difficult to biodegrade, were loaded into the bioreactors in different proportions and mixed with the organic fraction of municipal solid waste (OFSWM). The bioreactors were operated under different operating conditions. The contents of cellulose, hemicellulose, lignin, and initial and final organic matter in the wastes loaded into the bioreactors were examined. Parameters such as pH, COD, BOD, NH4-N in the leachate were analyzed, and the amounts of total and methane gas were measured. Initially, all bioreactors were operated anaerobically. In the decomposition of the sunflower stalk, while 43% of organic matter removal was achieved in anaerobic bioreactor, 60% of organic matter removal was realized in the semi-aerobic/anaerobic bioreactor. Thereupon, other agricultural wastes were subjected to decomposition under semi-aerobic/anaerobic operating conditions. As a result of the study, it can be said that semi-aerobic pretreatment accelerates the breakdown of agricultural wastes with high lignin and cellulose content, decreases the COD values of leachate and increases the amount of methane.Conference Object Effect of temperature and flow rate on agricultural waste gasification(Mehmet Sinan Bilgili, 2022) Yılmaz Cincin, Roda Gökçe; Öngen, Atakan; Agdağ, Osman NuriIn the gasification method, biomass fuels with a low water content and a high heating value are generally preferred. These are usually fuels used in power generation, such as wood or coal. However, in recent years, wastes such as rice straw, olive oil pulp, PET, and tires have been used as feedstock in the gasification method. In this study, the objective is to evaluate the agricultural waste from the distillation facilities for the production of essential oils, which have increased their activities in recent years, especially in Isparta, Afyon, and Denizli regions in Turkey, by gasification method. For this purpose, thyme (Origanum), which is difficult to biodegrade because of its high cellulose-lignin content, was used as feedstock. These wastes are not consumed by animals and not biodegrade in nature for many years. In the experimental studies, a laboratory-scale upstream fixed-bed gasification reactor made of stainless steel heated with a ceramic heater resistant to temperatures up to 1200 degrees C was used. The studies were carried out at temperatures of 700, 800, and 900 degrees C and a dry air flow rate of 0.05-0.4 l/min. After the gasification, the CO, CO2, O2, CH4, and H-2 values of the gas formed were determined by volume. Solid residue and liquid residue amounts were determined. As a result of the study, the percentage of the H2 produced as a result of gasification of thyme waste at 900 degrees C at a dry air flow rate of 0.05 l/min was found to be 39%. In the study, it was concluded that increasing the temperature and decreasing the dry air flow increased the H-2 yield.Article Citation - WoS: 2Citation - Scopus: 2Essential Oil Distillation Residue as Environmentally Friendly Feedstock in Gasification: Effect of Dry Air Flow Rate and Temperature on Gasification Performance(Springer Science and Business Media Deutschland GmbH, 2024-08-03) Cincin, Roda Gokce Yilmaz; Ongen, Atakan; Agdag, Osman Nuri; Yılmaz Çinçin, Roda GökçeDespite the growing use of distillation to extract essential oils from aromatic plants, their residues pose a challenge due to their high cellulose-lignin content and resistance to biodegradation, requiring thermochemical treatment for removal. This paper presents the effect of flow rate of agent and operation temperature on the gasification of Oregano (Origanum onites L.) and Lavender (Lavandula angustifolia) distillation residue in an updraft fixed bed reactor. The syngas composition, lower heating value of syngas, carbon conversion efficiency, cold gas efficiency, and amount of product are assessed during gasification process. In the experimental studies, a laboratory-scale upstream fixed-bed gasification reactor made of stainless steel heated with a ceramic heater resistant was used. The studies were carried out at temperatures of 700, 800, and 900 °C and a dry air flow rate of 0.05–0.4 L/min to find optimum conditions for gasification. Results showed that increasing the temperature and reducing the dry air flow rate led to higher syngas production and heating value. The maximum volume of H<inf>2</inf> in the syngas was measured as 40%. The HHV varied between 5 and 13 MJ/Nm3. The optimum flow rate and temperature for gasification in the updraft fixed bed reactor were found to be 0.05–0.1 L/min and 900 °C, respectively. © 2025 Elsevier B.V., All rights reserved.Article Citation - WoS: 6Citation - Scopus: 8Co-vermicomposting of Wastewater Treatment Plant Sludge and Yard Waste: Investigation of Operation Parameters(Springer, 2019-11-28) Cincin, Roda Gokce Yilmaz; Agdag, Osman NuriAbstract: Million tons of domestic wastewater treatment plant sludge is produced in each year. Since it increases the volume of the landfill area, the treatment of sludge with vermicomposting is an attractive approach. Vermicomposting of domestic wastewater treatment plant sludge with yard waste was carried out using Eisenia Fetida for 60 days. The effects of Bio-One™ (liquid microbial fertilizer), additives (different mature vermicomposts), recirculation and ventilation on decomposition rate of composting were investigated for composting mixtures. Temperature, moisture content (MC), organic matter (OM), pH, electrical conductivity (EC), total carbon (TOC) and total kjeldahl nitrogen (TKN) were monitored during the composting process. In addition, phototoxicity level and worm number changes of the mixtures were determined. C/N and OM value decreases ranged between 27.56–63.77% and 15.15–43.12%, respectively. It was concluded that vermicomposting process was faster than traditional composting process in terms of decomposition of organic matter. The result C/N ratio was more suitable to use it as soil remedial material in vermicomposting process. It has been shown that Bio-One™ addition has a positive effect on the acceleration of the process. It has been found that the process of recirculation some of the leachate formed during the vermicomposting process is an advantageous. It has been determined that mature vermicompost addition is an effective method. The final worm numbers were higher (except ventilation conditions) than the initial. The positive results of the plant growth tests on the final products in all cases may indicate that the products will not cause any toxic effect in the use as soil conditioning material. Graphic Abstract: [Figure not available: see fulltext.]. © 2019, Springer Nature B.V.Article Biodegradation of High Cellulose-Lignin Content Agricultural Wastes in Bioreactors(Yildiz Technical University, 2023-09-30) Y., Kiliç; R.G., Yilmaz Çinçin; O.N., AğdağThe bioreactor landfill is a solid waste disposal method that provides rapid degradation of solid waste and acquisition of methane. Bioreactors in which leachate circulation is carried out are generally operated anaerobically. The biodegradation of wastes with high lignin and cellulose content is very difficult. Especially under anaerobic conditions (moreover, if there is a lack of moisture), such wastes almost never decompose. In this study, the degradation of waste sunflower stalks that are difficult to biodegrade and have a high lignin-cellulose content and the production of methane gas in semi-aerobic bioreactors have been investigated. Sunflower stalks were loaded into the bioreactors in different proportions and mixed with the organic fraction of municipal solid waste (OFSWM). The bioreactors have been operated under different operating conditions. The contents of cellulose, hemicellulose, lignin, and initial and final organic matter in the wastes loaded into the bioreactors were examined. Parameters such as pH, COD, BOD5, TKN, NH4-N in leachate were analysed and the amounts of total and methane gas were measured. Initially, all bioreactors have been operated anaerobically. In the decomposition of the sunflower stalk, while 43% of the organic matter removal was achieved in the anaerobic bioreactor, 60% of the organic matter removal was realized in the semi-aerobic/anaerobic bioreactor. The other agricultural wastes were then subjected to decomposition under semi-aerobic/anaerobic operating conditions. As a result of the study, it can be said that semi-aerobic pretreatment accelerates the decomposition of agricultural waste with a high lignin and cellulose content, decreases the COD values of leachate, and increases the amount of methane.Conference Object Biodegradation of High Cellulose-Lignin Content Agricultural Wastes in Bioreactors(2022) Kılıç, Yonca; Yılmaz Çinçin, Roda Gökçe; Ağdağ, Osman NuriArticle Anaerobic/aerobic treatability of livestock wastewater(PAMUKKALE UNIV, 2019) Cincin, Roda Gokce Yilmaz; Agdag, Osman NuriThe agriculture and livestock sectors increased their production capacities by the increasing population. Thus, the environmental risks arising from the farms and agricultural areas that are generating more waste are also increased. Especially, animal wastes cannot be taken under control and unconsciously thrown into rivers, estuaries, open areas or irrigation canals, resulting in the destruction of the biological structure of the region soil and the endangered environmental health of insect, mosquito and odor problems. Surface and groundwater exposure to nitrogen and phosphorus pollution affects the health of all living things in the region. In addition, various gases resulting from waste accumulation rapidly pollute the regional air and cause the propagation of harmful microorganisms. From the environmental problems created by the wastewater, the treatment of the livestock wastewater sequential anaerobic upflow sludge bed reactor / aerobic continuous stirred tank reactor has been investigated. An aerobic CSTR reactor was used to break down the residual organic pollution following the anaerobic UASB reactor. The chemical oxygen demand (COD) removal and the amount of methane gas were measured at different organic loading rates (3.53-10.59 kg COD/m(3)day) in the system. In study, the highest COD removal efficiency in anaerobic UASB reactor was reached as 90.3% at an organic loading rate of 7.06 kgCOD/m(3)day. The highest measured methane gas rate in the biogas formed in the anaerobic treatment section was 65%. The results show that the treatability of the livestock wastewater is a good alternative anaerobic upflow sludge bed reactor / aerobic continuous mixing tank reactor.