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Gökhan Ekrem Üstün

Gökhan Ekrem Üstün
Bursa Uludag University

Professor

About

34
Publications
11,524
Reads
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552
Citations
Citations since 2017
10 Research Items
289 Citations
201720182019202020212022202301020304050
201720182019202020212022202301020304050
201720182019202020212022202301020304050
201720182019202020212022202301020304050

Publications

Publications (34)
Article
Microplastics (MPs) are an emerging pollutant that can be detected in all ecosystems, especially aquatic ecosystems. Wastewater treatment plants (WWTPs) are important point sources of MP release into the sea. In this study, the characteristics of MPs in wastewater and sludge samples taken from different units of WWTP in Bursa-Gemlik district for 12...
Article
Full-text available
Pickled cucumber is one of the vegetables that needs water frequently during its cultivation and is processed and evaluated, and it is consumed high all over the world. In arid and semi-arid regions, wastewater is commonly used for vegetables and forage crop irrigation. In this study, a comparative field study was carried out using untreated wastew...
Article
Wastewater treatment plants (WWTPs) are considered one of the important sources of aquatic/terrestrial microplastic (MP) pollution. Therefore, the abundance and properties of MPs in the wastewater and sludge of an urban WWTP in Bursa Turkey were investigated. The amount, properties, and removal of MPs were evaluated. The results showed that the ave...
Article
Full-text available
In this study, the performance of the wastewater treatment plant, which treats approximately 80,000 m³/day of domestic and industrial wastewater in the Bursa, Turkey, for the 2018–2020 period, is evaluated based on the analysis of chemical oxygen demand (COD), biochemical oxygen demand (BOD), suspended solid (SS), total nitrogen (TN), total phospho...
Article
Full-text available
Dünyada ve ülkemizde kullanılabilir su miktarı, su kaynakları üzerinde artan kirlenme ve aşırı tüketim baskısıyla her geçen gün azalmaktadır. Özellikle artan nüfus ve sanayi faaliyetleriyle birlikte küresel iklim değişiminin su kaynakları üzerindeki olumsuz etkisi her geçen gün hızla artmaktadır. Bu nedenle günümüzde, suyun kullanımı ve tasarrufu ö...
Article
Full-text available
Atıksu arıtma tesislerine her gün farklı kaynaklardan mikro plastikler gelmektedir ve mikro plastikleri gidermek için tasarlanmamışlardır. Buna rağmen birincil ve ikincil arıtma süreçlerinde mikro plastiklerin giderimi mevcuttur. Yapılan çalışmalar atıksu arıtma tesislerinin tatlı su ortamları için potansiyel bir mikro plastik kirliliği kaynağı old...
Article
Full-text available
Plastics are used in many different fields because they are light, cheap and easy to process and become one of the most important commercial materials of today. The use of plastics is increasing every year, and since most of these materials are disposable and their wastes are not managed well, it brings environmental pollution problem. Particles sm...
Article
Full-text available
Electrooxidation (ELOX) of synthetic and real wastewater containing nonylphenol ethoxylate-10 (NP10E) surfactant as a model pollutant was investigated using a boron-doped diamond anode (BDD) in a continuous reactor in the presence of Na2SO4 or NaCl supporting electrolyte. Response surface methodology (RSM) with there factors and five coded levels (...
Article
In this study, the Fenton treatment of Monocrotophos (MCP) was evaluated in terms of oxidation and mineralization efficiency using response surface methodology (RSM). The effects of MCP, Fe2+, H2O2 concentrations and reaction time and the interactions between these factors on (1) the oxidation efficiency of MCP and (2) the mineralization of MCP wer...
Article
Full-text available
The aim of this study, to examine grey water treatment and reuse. For this aim, previous literature studies been research on and interpreted. Project began with study of physical, chemical and biological characteristics of the gray water. At the second part; grey water treatment and reuse were examined. At the third part; the technologies used for...
Article
Full-text available
This study concerns about the reclamation of municipal effluent for agricultural irrigation by the application of a pilot-scale advanced treatment plant capable of rapid sand filter and disinfection. The rapid sand filter significantly reduced suspended solids and turbidity. Average reductions in these parameters 76 and 62%, respectively, were achi...
Article
Full-text available
Removal of Pb(II) ions from electroplating wastewater of Bursa, an industrial city in Turkey, was investigated in fixed-bed column. The experiments were conducted to study the effect of important design parameters such as column bed height and flow rate. The breakthrough profiles were obtained in these studies. At a bed height of 14 cm and flow rat...
Article
Solar photo-catalytic process is an emerging and promising technology both as an alternative treatment to conventional wastewater treatment methods and enhancement of biodegradability of highly toxic and recalcitrant pollutants. In this study, results for the treatment of 3-indole butyric acid solutions using pilot scale solar photo-catalytic treat...
Article
Full-text available
In this study, a combination of chemical precipitation, neutralization and ion exchange processes for an Organized Industrial District (OID) wastewater reclamation for reuse in agriculture was investigated. The parameters analyzed after treatment stages are agricultural irrigation standards. Optimum removal efficiencies for SS, COD, and fecal colif...
Article
The aim of this study was to investigate the performance of a tertiary treatment system for irrigation reuse of secondary urban effluents. The tertiary treatment units (including coagulation-flocculation-disinfection) were evaluated using a pilot-scale plant (0.24 m3 h− 1 of capacity) located in the wastewater treatment plant of Bursa in Turkey. Th...
Article
In this chapter, the effluents originating from an Organized Industrial District (OID) wastewater treatment plant for possible reuse in textile industry as process water was investigated. Wastewater samples were taken from an OID where most of industries consist of textile producers having mainly dying and finishing processes. Advanced treatment me...
Article
Full-text available
The degradation and mineralization of 3-indole butyric acid (IBA) in aqueous solution was examined using Fenton and Fenton-like processes. Various operating conditions were evaluated including pH and the concentrations of iron ions (Fe(2+) and Fe(3+)) and hydrogen peroxide (H(2)O(2)). The highest COD removal efficiency was achieved at 0.2 mM/0.6 mM...
Article
Full-text available
From past to present, several studies by using Fenton type processes on agricultural pesticides removal for preventing possible environmental impacts of reaching the pesticides to ground and surface water resources have given as a well rounded inventory. Several studies by using Fenton type processes emphasized the effects of pesticide degradation,...
Article
In this study, nine metals (Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) found in urban wastewater treatment plants (WTPs) in Bursa (Turkey) were monitored for 23 months in 2002 and 2007. Metal influent and effluent concentrations of wastewater stabilization ponds (WSPs) and the activated sludge process (ASP) measured via 24-h composite samples were use...
Article
Full-text available
In this study the gasoline additive methyl tert-butyl ether (MTBE)’s environmental effects because of leaking and spilling from underground storage tanks were determined and several methods are currently used to remove MTBE from MTBE-contaminated groundwaters were rewiewed. In this well rounded literature study, the importance of MTBE removal for e...
Article
In this study, the treatment efficiency of different advanced oxidation (Fe+2/H2O2, Fe+3/H2O 2, O3) and chemical coagulation processes were investigated. Wastewater samples were taken from two different textile industries. Optimum efficiencies in color and COD removal were determined based on the applications of different chemical species and pH. 1...
Article
Regeneration studies of wastewater effluent from an organized industrial district (OID) for possible reuse in textile industry as process water was investigated. Advanced treatment methods including Fenton process, polyaluminium chloride (PAC) coagulation and ion exchange were applied on OID effluent. In Fenton process removal efficiencies for susp...
Article
Full-text available
Treatment studies on the effluents originating from an organized industrial district (OID) wastewater treatment plant were investigated. Wastewater samples were taken from an OID where most of industries consist of textile producers having mainly dying and finishing processes. Chemical precipitation and ion exchange methods were applied to the samp...
Article
Full-text available
In this study, reusability of wastewater originated from Organized Industrial District in Bursa city, after treatment in the present treatment plant was investigated to use for agricultural irrigation purposes. Treated wastewater coming from present treatment plant was subjected to chemical precipitation and ion exchange to determine removal effici...
Article
Full-text available
The aim of this study was to compare the performance of coagulation, Fenton's oxidation (Fe2+/H2O2) and ozonation for the removal of chemical oxygen demand (COD) and colour from biologically pretreated textile wastewater. FeSO4 and FeCl3 were used as coagulants at varying doses and varying colour removal efficiency was measured. For the Fenton proc...
Article
In this study, the Fenton process color and COD removal efficiencies from effluent wastewater samples of organised industrial districts (OID), mostly textile industries or wastewater treatment plants, were investigated at different pHs (3, 4 and 5), Fe2+/H2O2 molar ratios and concentrations. The best experimental results of color and COD removal we...
Conference Paper
Bursa ili merkezi su temini sisteminde kayıt dışı su kullanımlarının azaltılmasına yönelik düzenlemeler incelenmiş ve su şebekesindeki sızıntılar sebebiyle oluşan kayıplar araştırılmıştır.
Article
Full-text available
In this study, a detailed wastewater profile and treatability studies of Demirtas Organized Industrial District (OID) were undertaken on a pilot-scale. The industrial categorisation of Demirtas OID was determined, and the wastewater characterisations of each industrial sector were analysed and the flow-rates were measured. The results were used to...
Article
Full-text available
The textile industry is one of the most rapidly developing industries in Turkey. It generates a large amount of wastewater, with corresponding concerns about pollution. The main sources of pollution in wastewater are the dyeing and finishing processes. The dyestuffs and polyvinyl alcohol (PVA) are the main refractory organics of concern in terms of...
Article
In this study, reusability of wastewater originated from Organized Industrial District in Bursa city, after treatment in the present treatment plant was investigated to use for agricultural irrigation purposes. Treated wastewater coming from present treatment plant was subjected to chemical precipitation and ion exchange to determine removal effici...
Article
Full-text available
In this study, ground waters in the borders of Bursa Transportation School Command have been examined and physicochemical and ion exchange studies have been carried out on these waters for hardness removal in laboratory conditions. In chemical treatability studies, 54% and 80% hardness removal efficiencies were determined by lime (Ca(OH)2 -250 mg/L...

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