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    A serial-operated constructed wetland system to control water pollution
    (2009) Tunçsiper, Bilal; Selma, Ayaz Çiko?lu; Güneş, Kemal; Akça, Lütfi
    In this study, it was aimed to decrease organic matter and nutrient loads from the waters joining the drinking water reservoirs like creeks and surface flows by a pilot scale serial-operated constructed wetland (CW) system. The serial system consisted of a horizontal-subsurface flow (h-SSF) bed vegetated with Carina, Cyperus, Typhia, and Juncus in the first stage, a free water surface flow (FWS-1) bed vegetated with Salvina, Pistia, and Lemna in the second stage, and a free water surface flow (FWS-2) bed vegetated with Elodea and Egeria in the third stage. Organic matter and nutrient removal performances in different hydraulic and loading rates were examined and contributions of plants on treatment were also investigated. Planted systems operated at the same loading rates have higher performances than unplanted systems. The results showed that the serial system increases removal efficiencies from 67% to 84% for BOD, 56% to 73% for COD, from 41% to 77% for TN and from 40% to 59% for TP. The results of this study indicated that a serial-connected constructed wetland system had a potential for BOD, COD, N, and P removal and the treatment of tertiary treated wastewater. © PSP Volume 18-No 9. 2009.
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    Akkaya Baraj Gölünü Kirleten Kızılca Deresinin Doğal Atıksu Arıtma Yöntemiyle Arıtılması
    (2016) Tunçsiper, Bilal; Demirel, Sevgi
    [Abstract Not Available]
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    An experimental three-stage hybrid constructed wetland system for removal of organics and nutrients from domestic wastewater
    (Gh. Asachi Technical University of Iasi, 2009) Tunçsiper, Bilal
    An experimental three-stage subsurface flow constructed wetland system was investigated for the removal of nutrient and organic matter from primary-treated domestic wastewater. Built in the Turkey Scientific and Technical Research Council-Marmara. Research Center, Gebze, Turkey (Istanbul), the system consisted of a vertical flow-gravel filtration in the first stage, a horizontal-subsurface flow bed vegetated with Iris in the second stage, and a vertical-subsurface flow bed vegetated Phragmites in the third stage. Wastewater was recycled from the vertical bed to the horizontal one at a ratio of 1:2 and 1:1. The study aimed at evaluating the effects of the loading rates and seasonal changes, effects of recycling and rapid drainage, plant uptake, and the effectiveness of the system in the removal of organic matter and nutrients. The average removal efficiencies were high in summer periods. The results show that the average removal efficiencies increased depending on decrease in hydraulic loading rate and increase in recycle ratio. The relationships between the loading rate and the removal rate were linear.
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    Investigation of bacteriological contamination in kizilca (Karasu) creek feeding akkaya reservoir and solution proposals to reduce contamination
    (Namik Kemal University - Agricultural Faculty, 2017) Tunçsiper, Bilal
    With intention to the sustainable protection of surface water sources, researches made on bacteriological contamination in streams that pollute water resources are of great importance. Therefore, because Kizilca creek (Karasu) feeding Akkaya reservoir (Nigde, Turkey) is contaminated with high bacterial loadings, and its ecosystem also becomes dysfunctional, it is examined the change in water quality of Kizilca creek and Akkaya reservoir depending on the distance, their water guality parameters was analyzed between October 2014 to September 2015 periods, and determined their quality classes according to Water Pollution Control Regulation. Water samples were collected at monthly intervals from five stations chosen on creek toward downstream from upstream. The values and degrees of flowing rate, temperature, pH, Dissolved Oxygen (DO), and Faecal Coliform (F.Coli.) were determined for each station separately. Data obtained from the experiment results shown that Kicilca creek was in low quality standard (Class III) in terms of F.Coli. according to intra-continental water quality standards declared in water pollution law. As a results of studies, it was determined that creek was excessively polluted and a most significant threat to Akkaya reservoir. © 2017 Namik Kemal University - Agricultural Faculty. All Rights Reserved.