Bilgehan Nas

Bilgehan Nas
Konya Technical University · Environmental Engineering

Prof.Dr.
www.bilgehannas.com

About

34
Publications
27,818
Reads
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1,724
Citations
Introduction
RESEARCH INTERESTS: Wastewater Treatment, Wastewater Treatment Plant Design, Operation of Wastewater Treatment Plant, Water Reuse, Micropollutants, Removal and Control of Contaminants of Emerging Concern (CEC), Constructed Wetlands, Industrial Pollution Control, Water Quality Management, Water Framework Directive (EU WFD), River Basin Management Plans, GIS Applications in Environmental Engineering
Additional affiliations
September 2006 - present
Arbiotek Environmental Solutions Ltd. Co
Position
  • CEO
Description
  • www.arbiotek.com
Education
June 2008 - June 2009
University of Minnesota Twin Cities
Field of study
  • Soil, Water and Climate
February 1999 - September 2002
Selcuk University
Field of study
  • Civil Engineering
September 1995 - August 1998
Selcuk University
Field of study
  • Environmental Engineering

Publications

Publications (34)
Article
Phthalate Esters (PAEs), detected in high concentrations generally in treated wastewater discharged from wastewater treatment plants (WWTPs), are important pollutants that restrict the reuse of wastewater. Investigating the fate of these endocrine-disrupting chemicals in WWTPs is crucial in order to protect both receiving environments and ecosystem...
Article
Full-text available
Due to the inadequate removal rates of drug residues in wastewater treatment plants (WWTP), the transition of these compounds into the environment has become a serious environmental problem for ecosystems and public health. In this study, occurrence, fate, and removal of widely consumed two antibiotics, ciprofloxacin (CIP) and sulfamethoxazole (SMX...
Article
Passing of pharmaceutical residues into environment in an uncontrolled manner as a result of continuous increase in drug consumption across the globe has become a threatening problem for the ecosystems and almost all living creatures. In this study, diclofenac (DCF), carbamazepine (CBZ), 17β-estradiol (17β-E2) and 17α-ethynylestradiol (EE2) belongi...
Article
Full-text available
Eight polycyclic aromatic hydrocarbon (PAH) compounds which have been accepted as priority micropollutants by European Union (EU) were analyzed both in wastewater and sludge lines throughout three full scale (located in city, sub-province and village) WWTPs during 12-month sampling period. Investigated WWTPs have different treatment types including...
Article
Full-text available
The Ministry of Environment and Urbanization (MoEU) initiated an important project, ‘Reuse of Treated Wastewater in Turkey’ in 2017. With this project, all wastewater treatment plants (WWTPs) were investigated for determining the wastewater reuse purposes for the first time. Results obtained from this project, although there are existing 1,015 WWTP...
Article
Full-text available
Reactive dyestuff is commonly used in the textile industry. Reactive dyebath wastewater (RDW) was treated with a batch, monopolar, parallel lab scale electrocoagulation process (EC) having 0.042 m² effective electrode area. The effects of process parameters, such as initial pH, current density and electrolysis period on COD and color removal effici...
Article
Full-text available
Application of lab-scale sequencing batch (SBR) and sequencing batch biofilm reactors (SBBR) for treatment of dairy wastewater was investigated under organic loading of 1,130-1,560 gBOD5/m³·d. The main characteristics of the dairy wastewater were: pH=4.9, chemical oxygen demand (COD)=16,264mg/l; biological oxygen demand (BOD5)=10,536mg/l, PO4-P=342...
Conference Paper
Full-text available
In recent years the wastewater ecclesiastical controls have prompted to a consistent rise in the decontamination execution requested of wastewater treatment plants. In light of this, the quantity of wastewater treatment plants has been developing, and specialized multifaceted nature has additionally been developing. Keeping in mind the end goal to...
Article
Full-text available
The operational performance of the sequencing batch reactor (SBR) and sequencing batch biofilm reactor (SBBR) for treating the university campus wastewater was evaluated. The effects of power failure on performance of processes were investigated by comparing chemical oxygen demand (COD) and total suspended solids (TSS) removal, sludge settling prop...
Article
Full-text available
Treatment of young landfill leachate, collected from municipal solid waste site of city of Konya, was investigated by using the Fenton process. The leachate itself showed the characteristics of pH 7.25, COD 38.2 g L -1 and BOD 5 22 g L -1 . Ratio of BOD 5 to COD with 0.58 indicates that leachate can be defined young. Fenton oxidation of landfill le...
Article
Full-text available
Landfill is a common solution for the final disposal of municipal solid waste in Turkey. In recent years, studies of landfill leachate treatment by Fenton process have indicated that these methods can effectively reduce concentrations of organic contaminants and colour. The aim of this study is to investigate the removal efficiencies of colour and...
Article
Full-text available
Landfills are the most common method for the disposal of municipal solid waste (MSW) in Turkey. However, determining the location of landfill sites is a difficult and complex process because it must combine social, environmental and technical parameters. Additionally, it depends on several criteria and regulations. The main objective of this study...
Article
Full-text available
The main goal of this study was to investigate spatial patterns in water quality in Lake Beysehir, which is the largest freshwater reservoir in Turkey, by using Landsat-5TM (Thematic Mapper) data and ground surveys. Suspended sediment (SS), turbidity, Secchi disk depth (SDD), and chlorophyll-a (chl-a) data were collected from 40 sampling stations i...
Article
Full-text available
Konya City, located in the central part of Turkey, has grown and urbanized rapidly. A large amount of the water requirement of Konya City is supplied from groundwater. The quality of this groundwater was determined by taking samples from 177 of the wells within the study area. The purposes of this investigation were (1) to provide an overview of pr...
Article
Full-text available
Lake Beyşehir is the largest fresh water lake and also the largest reservoir for drinking, and irrigation water in Turkey. The lake has an area of 656 km2 with an average depth of 5 m. Metal concentrations of aluminium (Al), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), nickel (Ni), lead (Pb) and zinc (Zn) were determined in Lake Beyşehir on...
Article
Full-text available
Landfill is a common solution for the final disposal of municipal solid waste (MSW) in Turkey. Landfill siting is an extremely difficult task to accomplish because the site selection process depends on different factors and regulations. To ensure that an appropriate site is chosen, a systematic process should be developed and followed. Unsuccessful...
Article
A large portion of the water requirements of Konya, Turkey, is supplied by 200 groundwater wells. The quality of this groundwater was determined by taking samples from 156 of the wells within a study area of 427.5 km2. The locations of the wells were obtained using a hand-held global positioning system (GPS) receiver. The purposes of this investiga...
Article
Full-text available
A moving bed biofilm reactor (MBBR), where biomass is attached to small carrier elements that move freely along with the water in the reactor, has been tested for organic matter removal at five different organic loading rates. A lab-scale reactor with a volume of 2L was built and fed continuously with synthetic wastewater. The reactor was filled wi...
Article
This paper presents an application of water quality mapping through real-time satellite and ground data. The Lake Beysehir which is the largest freshwater lake and drinking water reservoir in Turkey was selected as the study area. Terra ASTER satellite image is used as remote sensing data source for water quality mapping in addition to simultaneous...
Article
Municipal wastewater treatment plants generate sludge as a by-product of the physical, chemical and biological processes used in the treatment of wastewater. Generally, this sludge must be subject to some form of treatment in order to alter its character. By using anaerobic digestion in the treatment of wastewater sludge, methane gas is produced an...
Article
As far as environmental pollution concern, the utilization of all fuels produces air pollutants, causing local and trans-boundary air pollution and acid rain problems. Biodiesel is a clean renewable fuel with its properties similar to diesel but generated from renewable resources such as vegetable oils and animal fats. Although this fuel has been d...
Article
The effects of salt (NaCl) and chromium (VI) shock loadings on oxygen use and chemical oxygen demand (COD) removal efficiency were investigated by using two laboratory-scale sequencing batch reactors (SBR). The feed water used in this investigation was synthetic sewage with a ratio of 100/5.4/1.1 as COD/N/P. Reactors were operated at a 0.34-0.52 F/...
Article
Groundwater is an essential drinking water source in the city of Konya, Turkey. Approximately 75% of the city's water consumption has been supplied from 198 groundwater wells for the last six years. Nitrate (NO(3)(-)) is one of the important water quality parameters and was measured in the water samples taken from 139 wells in 1998 and from 156 wel...
Article
Konya basin is the largest closed basin in Anatolia. Konya plain project (KOP: Konya Ovasi Projeleri in Turkish) is a comprehensive group of projects, which includes construction of dams, hydroelectric power plants, and irrigation systems as well as providing developments in agricultural infrastructure, transportation industry, water supply, water...
Article
Electricity is a basic part of nature and it is one of the most widely used forms of energy. Electricity, which is a secondary energy source, can be generated from the conversion of other sources of energy, such as coal, natural gas, oil, nuclear power and renewable resources. Electricity prices have a deep impact on the competitiveness of a countr...
Article
Especially increase of road traffic noise in urban area has been important due to discomfort in modern life. The first step for decrease of noise level is to produce urban noise pollution map. This study concerns road traffic noise in Konya. The investigation comprised of field measurements of road traffic noise at 188 sites. Noise measurements wer...
Article
In order to supply drinking and industrial water for the city of Konya, work have started in 1996 to drill deep wells. At present, 76.9x 10 6 m 3 water (86% of the total water requirements) is being supplied from 198 deep wells and distributed to the city. In this study, the determination of water hardness, one of the most common water quality para...
Article
The Beysehir lake is the most important drinking and irrigation water source for the Central Anatolia. The lake has an area of approximately 656 km2 with an average depth of 5 meters. The purposes of this investigation were to (1) provide an overview of present water quality in the Beysehir Lake, Turkey and (2) to determine spatial distribution of...
Article
Full-text available
Many developing countries are struggling to provide a proper waste management system due to increasing population and urbanization. Also, waste management system is not regulated sufficiently in Turkey. At present, there are various techniques used for solid waste management such as landfill, thermal treatment, biological treatment, recycling etc....

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Projects

Project (1)
Project
We are analyzing in three levels (national, provincial, and sub-provincial [very local]) specifically with respect to water management policies affecting Beysehir Lake Sub-basin: - what are the incoherences in national water legislation in Turkey? - what are the gaps between legislation and implementation -what are the gaps between international obligations of Turkey and its implementation? -what is to be done to ameliorate the environmental problems in the sub-basin, socio-economic problems of the the people concerned in holistic and environmentally and socially sustainable manner?