Yüksel Orhan Ardali

• Professor
• Professor at Ondokuz Mayıs University

This study considers green port-based strategies that improve environmental performance in the context of urban areas and promote sustainable solutions to combat climate change. As an important component of the city, ports have a significant impact on socioeconomic development. In fact, given that ports in Turkey operate in limited spaces and city...

The TR83 region in Turkey is recognized as one of the leading industrial centers of the Black Sea region with its efficient use of resources and wide range of activities. In the project carried out jointly by the University and the Central Black Sea Agency, the potential for optimizing resource use in the industrial sector of the region was evaluat...

This study identifies threats to water resources and estimates their impact on water quality as a result of climate change and human activities in the coming years. The main risks to water availability are climate change and variability, water regulation and extraction, human activities and limitation of the use of water resources. Environmental wa...

In this study, consumption data for 2020 were obtained from the Administration Activity Reports published annually by Ondokuz Mayıs University (OMU). Waste data were also taken for the 2020 period as the amounts recorded within the scope of the Zero Waste Project carried out by the university. With the collected data, in the second part, the change...

The aim of this study is to evaluate the parameters such as pH, dissolved oxygen, temperature, conductivity, salinity, biological oxygen demand (BOD), total suspended solid, ammonia, chlorophyll-a and heavy metals affecting total coliform values in seawater using Artificial Neural Network (ANN) modelling at the Eastern Black Sea coast of Turkey. Th...

Environmental pollution from plastic bags is a significant issue in the global environment. Plastic bags can be transferred by the wind and ocean currents everywhere in the three dimensions and be fragmented into small particles, termed film-shaped microplastics. The purpose of this study is to provide insights on the degradation of beached plastic...

Günümüze bakıldığında plastikler yarı sentetik veya sentetik bileşiklerden yapılan, kolay şekil verilebilen, üretiminin kolay olması, suya, kimyasal maddelere ve çevresel değişimlere (ışık, sıcaklık vb.) karşı duyarlı olması sebebiyle kullanımları oldukça geniş bir yer tutmaktadır. Üretime paralel olarak artış gösteren plastik atık kirliliği de hem...

This study used various parameters of honey to develop a potentially more robust approach to the detection of adulterated honey. For this purpose, 25 multifloral, natural honey samples and 20 samples of adulterated honey produced by bees that had been fed supplementary sucrose syrup were analysed. The mean total phenolic content of the natural hone...

One of the most important environmental problems is municipal solid waste management (MSWM) as a result of the rapid rise in waste generation due to industrialization, economic development, urbanization, and rapid population growth in Turkey. The collection, transportation, and disposal of solid waste are conducted by municipal authorities of Turke...

Sediments play an important role in the quality of aquatic ecosystems in the Dam Lake where they can either be a sink or a source of contaminants, depending on the management. This purpose of this study is to identify the sediment quality in order to find out the causes for the malodor and the eutrophication that is causing a bad scenario. Solution...

The main goal of the present work was to search the feasibility of pumice and vermiculite as adsorbents for lead (II) removal from industrial waste by using Box-Behnken method. Batch adsorption method was performed to evaluate the feasibility. Box-Behnken surface statistical design approach with three inlet parameters namely pH (2, 5, 8), adsorbent...

In this work, the most common heavy metals such as Cu (II), Zn (II), and Pb (II) removal from aqueous leachate of industrial waste were investigated using pure and biochar rice husks. The influence of such parameters as pH, adsorbent dose (g L⁻¹), and contact time (min) on the biosorption of rice and biochar rice was examined by using response surf...

In the present study, a full scale horizontal subsurface flow constructed wetland was designed, constructed and operated to treat domestic wastewater of Kızılcaören village in Samsun city of Turkey. The total surface area of HSFCW was divided into equal parts. The effects of Juncus acutus L. and Cortaderia selloana (Schult.Schult.f.)Asch.&Graebn. o...

Ecological processes that occur in a lake depend on the physico-chemical (abiotic) and biotic factors of the system and the interrelations between them. It can be concluded that the current nutrient loadings from both point and non-point sources are cause to increase eutrophic case over the years. This study indicate that the sustainable utilizatio...

In the present study, a horizontal subsurface flow constructed wetlands divided three equal parts was designed and constructed at a full scale to treat wastewater of Yörükçal village located in Black Sea region. Three macrophytes namely Juncus acutus, Cortaderia selloana, and Phragmites australis were used in each wetland system. The total surface...

Constructed wetlands (CWs) are a green technology that have been used to treat several types of wastewater such as domestic, industrial, agricultural wastewaters and landfill leachate. CWs have several advantages included land intensive, low energy, easy operation and maintenance, low investment/operational costs, landscape esthetics, reuse of wate...

This study aimed to determine the students' environmental awareness, attitude and behavior levels and factors influencing their environmental awareness, attitude and behavior. A face-to-face survey with 621 candidate graduate students in the Ondokuz Mayis University was used to collect the data. The environmental awareness, attitude and behavior we...

This study presents an evaluation of diatomite as a low cost adsorbent for Pb (II) removal from aqueous solutions under various conditions. The results demonstrate that adsorption of Pb (II) is strongly dependent on the pH of the solution. The effect of pH on adsorption of Pb (II) on diatomite was studied by varying pH from 2 to 12 at 20 °C. In the...

This study focuses on adsorption of lead (II) using various inexpensive adsorbents, such as dried activated sludge, diatomite, and sepiolite, through the batch process. The data were evaluated using three types of isotherm models to determine the design parameters. Additionally, the adsorption kinetics was analyzed using first- and second-order kin...

The aim of the present study is to investigate the feasibility of using expanded perlite for the adsorptive removal of Cu (II) from industrial leachate. The adsorption capacities and sorption efficiencies were determined. The pseudo-second order, Elovich and the intra particle diffusion kinetic models were used to describe the kinetic data to estim...

Land filling is the most common method of disposal of solid waste all over the world. As well as municipal solid waste, industrial wastes, which may contain hazardous substances, are also received by landfills in many countries. Leachate is one of the problems arising from landfills. When water percolates through solid wastes, contaminants are leac...

Heavy metals from industrial wastewaters are one of the most important environmental issues to be solved today. Due to their toxicity and nonbiodegradable nature, heavy metals cause environmental and public health problems. Various techniques have been developed to remove heavy metals from aqueous solutions. These include chemical precipitation, re...

Objective: The purpose of this study is to investigate effects of the geographic diversity and plant species on the mineral levels of the honey and honey bee tissues. Furthermore we investigated the effectiveness of honey bees and honey bee products to use as bioindicators for the determination of minerals and heavy metals which carry risk for the...

The title molecule, (E)-3-chloro-N-((5-nitrothiophen-2-yl)methylene)aniline, (C(11)H(7)ClN(2)O(2)S), was synthesized and characterized by IR and single-crystal X-ray structure determination. The compound crystallizes in the monoclinic space group P2(1)/c. In addition, the molecular geometry, vibrational frequencies and frontier molecular orbitals a...

Constructed wetlands can be a good alternative to conventional on-site wastewater disposal systems, which usually consist of a septic tank and a soil absorption field. Constructed wetlands are used in treatment of both domestic and industrial wastewater in several countries owing to its advantages such as low-cost requirement and ease of operating,...

In this study, the removal of heavy metal ions from aqueous solution using natural clinoptilolite, obtained fromthe Biga-Canakkale region of Turkey, under different experimental conditions was investigated. The efficiency ofzeolite as an adsorbent for the removal of heavy metals such as Cd (II), Cu (II), Ni (II) from aqueous solutions hasbeen deter...

The chromium, cobalt and lead removal from aqueous solution by natural and modified zeolites was examined by using a batch-type method. Clinoptilolite samples used in this study were supplied from Bigadiç, Turkey. All samples were modified with HNO3 or NaOH to improve the adsorption capacity for heavy metals. The removal efficiencies and kinetics o...

The influence of different concentration ranges (0–500 mg/L) of ammonium, nitrate and nitrite presence in the wastewater, on the performance of the pure culture of phosphate-accumulating bacterium Acinetobacter junii in the anaerobic and aerobic conditions, was investigated. A. junii was able to use ammonium and nitrate salts as the source of nitro...

There is a growing interest to immobilize desired bacteria using inexpensive materials in order to improve the wastewater treatment process. Three different types of carriers namely natural zeolite, magnesium-exchanged natural zeolite and quartz sand of different particle size were used to immobilize the phosphate-accumulating bacteria Acinetobacte...

In a study where the removal of heavy metals from wastewater is the primary aim, the biosorption of heavy metals onto biosolids prepared as Pseudomonas aeruginosa immobilized onto granular activated carbon was investigated in batch and column systems. In the batch system, adsorption equilibriums of heavy metals were reached between 20 and 50 min, a...

The influence of a clinoptilolite-rich tuff from Bigadiç area, Turkey on the concentration of biomass of P-accumulating bacteria and the phosphate (P) uptake was investigated. Experiments were carried out in reactors containing the experimental wastewater with different initial concentrations of P inoculated with the pure culture of Acinetobacter c...

There is a growing interest to immobilize desired bacteria using inexpensive materials in order to improve the wastewater treatment process. Three different types of carriers namely natural zeolite, magnesium-exchanged natural zeolite and quartz sand of different particle size were used to immobilize the phosphate-accumulating bacteria Acinetobacte...

A degradation of compost bags strips made of supposedly degradable polyethylene and nondegradable low density and high density polyethylene were evaluated in soil mixed with 50% (w/w) mature municipal solid waste compost supplied from municipal refuse. Plastic films were buried during 15 months at room temperature in 2 L desiccator jars containing...

The aim of this study was to investigate the influence of various carbon sources and nitrogen compounds, applied at different initial concentrations of phosphorus, on the phosphorus release and removal in bioaugmented activated sludge system with enhanced biological phosphorus removal characteristics. The system performance for synthetic, as well f...

The aim of this study was to investigate the influence and performance of the addition of support material on the phosphate uptake in a pure culture of phosphate-accumulating bacteria Acinetobacter calcoaceticus (DSM, 1532). Materials (natural zeolite and clay from Hrvatsko zagorje, Croatia) of different physical, chemical and mineral characteristi...

The objective of this study was to achieve better efficiency of phosphorus removal in an enhanced biological phosphorus removal process by upgrading the system with differ-ent amounts of natural zeolite addition. The system performance for synthetic wastewater containing different carbon sources applied at different initial concentrations of phosph...

This chapter presents a novel application of natural zeolites (NZ) in sewage treatment. It explores the enhanced performances of upgraded activated sludge system with NZ addition, particularly as far as phosphorus removal, chemical oxygen demand (COD) and sludge characteristics. Two experimental studies are run—namely, (1) an upgraded activated slu...

Plastics as polyethylene are widely used in packaging and other agricultural applications. They accumulate in the environment at a rate of 25 million tons per year. Thus, the development and use of degradable plastics was proposed as a solution for plastic waste problem. Because of the ever-increasing use of plastic films, nowadays, biodegradabilit...

The chromium, cobalt and cadmium removal from wastewaters by natural and modified zeolites was examined by using a batch-type method. A clinoptilolite-type Turkey natural zeolite was pretreated with HCl and HNO 3 to improve the adsorption capacity for heavy metals. The removal efficiencies and kinetics of heavy metals such as chromium, cobalt and c...