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Öğe Aromatic hydrocarbons in water and wastewater of Konya-Turkey(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2004) Aydin, ME; Kara, G; Wichmann, H; Bahadir, MIt was the aim of this investigation to monitor aromatic hydrocarbons in drinking water and wastewater of Konya. Samples were taken from the Konya Drinking Water Distribution Network, the Konya Sewerage System and the University Campus Sewer. Water and wastewater samples were analyzed in terms of sum parameters as well as aromatic hydrocarbons, such as ethyl benzene, chlorobenzene, bromobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, 1,2-dichlorobenzene, 1,2,4-trichlorobenzene, and 1,2,3-trichlorobenzene. These substances were extracted using liquid-liquid micro extraction method and analyzed with GC/FID. The level of 1,4-dichlorobenzene was found to be quite high for water samples and possible sources of this compound are discussed.Öğe Direct filtration of water from Altinapa Dam by dual media filters(INST LEBENSMITTELTECHNOLOGIE ANALYTISCHE CHEMIE, 1999) Burdurlu, Y; Aydin, MEIn this research three laboratory scale model filters were employed to evaluate the performance of dual medial filters. The model filters had sand, anthracite coal over sand and granular activated carbon over sand as filter media. Water samples from influent and filtrate of each filter column were analyzed to determine the performance of filters. Turbidity, color, organic matters and bacteria count analyses of water samples were carried out. According to the results of this research dual media filters were performed better compared to the single media filter in terms of head loss development and hence were able to operate longer.Öğe An investigation into the analytical methods for the determination of selected chlorinated phenols in aqueousphase(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2004) Tor, A; Cengeloglu, Y; Aydin, ME; Wichmann, H; Bahadir, MThe objective of this study was to optimize an analytical method for the analysis of selected chlorinated phenols (2-chlorophenol [2-CP], 2,4-dichlorophenol [2,4-DCP], 2,4,6-trichlorophenol [2,4,6-TCP] and pentachlorophenol [PCP]) in wastewater. Following the EPA Method 604, the optimum analytical method consisted of procedures including a liquid-liquid extraction (LLE) (n-hexane as an organic solvent), a derivatization (according to acylation technique by using of pentafluorobenzoylchloride (PFBC1), a clean-up procedure (silica gel, deactivated with 2 % water, as a sorbent material) and GC-ECD quantification. When including each of these above steps in the analytical procedure, the recovery rates of target compounds were obtained to be > 80 % (RSD: < 10 %, [n=3]).Öğe An investigation on the toxicity of sewage(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2004) Aydin, ME; Kara, GIn this study, the toxicity of municipal wastewater samples, taken from the second industrial zone and the general sewerage outlet were investigated by bioassays using garden cress (Lepidium sativum) and freshwater fish (Lepistes reticulatus) as test organisms. The LC50 (72-h) values of the fish in both Konya city wastewater samples, the general effluent and that of the second industrial zone, were calculated to be 41 and 47%, whereas the highest seedling percentages of garden cress were calculated to be 83 and 79%, respectively. The toxicity dilution factors of the wastewaters were found to be within the acceptable range for industrial discharge into sewerage systems and according to the industrial wastewater discharge rules of the Turkish water pollution control regulations.Öğe Organochlorine pesticides in the sewerage system of Konya-Turkey(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2004) Aydin, ME; Ozcan, S; Sari, SIn this research, wastewater samples were collected at the general outlet and three different points of the main drainage channel of the sewerage system and analyzed for organochlorine pesticides, such as lindane, mirex, aldrin, heptachlor, methoxychlor, o,p-DDE, p,p-DDD, p,p-DDT and dieldrin. For determination and quantification of the pesticide standards method 6630 was used along with GC/ECD analysis. The recovery rates of solid phase and liquid-liquid extraction methodologies were compared, and changed between 35%-100% for solid phase and 70%-100% for liquid-liquid extractions. In this work, the maximum organochlorine pesticide contents of Konya wastewater varied between 0.02-7.87 mug/L for lindane, 0.13-21.35 mug/L for heptachlor, 0.004-10.13 mug/L for aldrin, <0.0002-1.72 mug/L for dieldrin, <0.01-26.13 mug/L for metboxychlor, <0.0002-1.32 mug/L for mirex, 0.016-4.39 mug/L for o,p-DDE, <0.0002-3.93 mug/L for p,p-DDD, and <0.01-2.28 mug/L for p,p-DDT.Öğe Polychlorinated biphenyls in wastewater of Konya-Turkey(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2004) Aydin, ME; Sari, S; Ozcan, S; Wichmann, H; Bahadir, MIn this work wastewater samples were collected from 12 points in a sewerage system, the general outlet of the system and different points of the main drainage channel. USEPA method 8082 was used to analyze the PCB congeners 28, 52, 101, 138, 153 and 180, extracted from wastewater by using solid phase extraction cartridges. Recovery ratios were determined to be between 78% and 93% with the analyses of fortified samples. PCB contents of Konya wastewater varied between 0 and 1.3 mug/L for each congener. Possible sources of PCBs in wastewater and some measures to prevent their discharges are discussed.Öğe Priority organic pollutants in fresh and waste waters of Konya-Turkey(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2004) Aydin, ME; Wichmann, H; Bahadir, MIn this work, fresh and waste waters and sediment from Konya water distribution network, sewerage system and main drainage channel, respectively, were collected and analyzed for polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). An analytical procedure for the parallel analysis of PAHs and PCBs was developed. Concentrations of 16 EPA PAHs were found to be up to 1.85 mug/L in fresh water, 8.33 mug/L in waste water, and 744 mug/kg in sewage sediment, whereas the maximum PCB concentrations were 0.044 mug/L in fresh water, 0.19 mug/L in waste water, and 35 mug/kg in sewage sediment. According to literature, PAH concentrations in drinking water partly exceeded EU, German and US EPA maximum admissible levels.Öğe Second phase of regional, groundwater information system (RGWIS) for Konya: 3.5D ground water temporal models(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2005) Corumluoglu, O; Aydin, ME; Kalayci, I; Asri, IWater is the most vital necessity for mankind. Groundwater constitutes a major portion of the earth water circulatory system, known as hydrologic cycle. It occurs in permeable geologic formations as aquifer. The early stages of land or aquifer development are an opportune time to establish a combined water-level and water-quality monitoring network that can define baseline conditions, and track important changes with time in the quantity and quality of the resource. In recent years, much progress has been made in the application of Geographical Information Systems (GIS) to ground water [1-4]. The advent of GIS has added new vistas in the field of ground water resources mapping and management. It helps integrating GIS supported data and ancillary data to have more precise and correct information about various factors involved in ground water resource management. Examples are provided for the region of Konya, where rapid changes in land development have a potential to affect ground-water resources. In this study, the regional ground water information system (RGWIS) and 3.5D temporal models were used to illustrate the regional distribution of some attributes of ground water in Konya, to analyze them and to form a decision support platform for decision makers, natural resource managers, and even real users. Under this concept, delineated 3.5D temporal models were established to show yearly and seasonal changes in the ground water level, conductivity, turbidity, ammonia and nitrate distributions in the region.Öğe Separation of some priority organic pollutants in wastewater samples by column chromatography(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2004) Tor, A; Cengeloglu, Y; Aydin, ME; Wichmann, H; Bahadir, MThe aim of this work was to develop a fractionation procedure to separate PCBs and PAHs in wastewater extracts, while simultaneously eliminating the interfering substances, a necessary precondition for analysis with nonselective GC detectors. This was carried out by optimizing the fraction cut-off volume of the eluting solvent and deactivation levels of different adsorbents for column chromatography. Using a combined column (5 g aluminum oxide, deactivated with 5% H2O plus 5 g fully activated silica gel) and cutting off PCB collection, after elution with 50 mL n-hexane, led to satisfactory separation of PCBs and PAHs. The approach of this study was to decrease solvent volume and analysis time during cleanup procedure compared to the US EPA standard methods (EPA Methods 610 and 608 for PAHs and PCBs, respectively).Öğe Ultrasonic solvent extraction of organochlorine pesticides from soil(ELSEVIER SCIENCE BV, 2006) Tor, A; Aydin, ME; Ozcan, SUltrasonic solvent extraction of the organochlorine pesticides (OCP) including alpha-, beta-, gamma- and Delta-hexachlorocyclohexane (HCH), heptachlor, aldrin, o,p'-DDE, dieldrin, p,p'-DDE, p,p'-DDT, methoxychlor, mirex from soil is reported. The extraction procedure was optimized with regard to the solvent type, amount of solvent, duration of sonication and number of extraction steps. Determination of pesticides was carried out by gas chromatography (GC) equipped with electron capture detection (ECD). Twice ultrasonic extraction using 25 mL, of a mixture of petroleum ether and acetone (1/1 v/v) for 20 min of sonication showed satisfactory extraction efficiency. Recoveries of pesticides from fortified soil samples are over 88% for three different fortification levels between 15 and 200 p,g kg(-1), and relative standard deviations of the recoveries are generally below 6%. Real soil samples were analyzed for OCP residues by optimized ultrasonic solvent extraction and shake-flask as well as soxhlet extraction technique. Investigated all extraction methods showed comparable extraction efficiencies. Optimized ultrasonic solvent extraction is the most rapid procedure because the use of time in ultrasonic extraction was considerably reduced compared to shake-flask and soxhlet extraction. (c) 2005 Elsevier B.V. All rights reserved.Öğe Using n-alkanes for identification of oils in domestic wastewaters(SELPER LTD, PUBLICATIONS DIV, 2005) Tor, A; Aydin, ME; Cengeloglu, Y; Ozcan, SThe aim of this work was to investigate whether linear aliphatic hydrocarbons had a usable potential for the determination of waste oil in wastewater. For that, n-alkanes analyses of wastewater samples from five sampling points (P-1-P-5) of the sewage system of Konya-Turkey were carried out by gas chromatographic technique and the parameters of carbon predominance index (ICP), n-C-17/n-C-18 and unresolved complex mixture (UCM)/n-alkanes ratios were determined. It was found that sampling points P, P, and P. which had ICP values 1.52 +/- 0.04, 1.43 +/- 0.05 and 1.12 +/- 0.05, respectively, were polluted with petroleum hydrocarbons and the aliphatic hydrocarbons detected in the sampling points of P, and F, which ad ICP values of 0.96 +/- 0.05 and 0.95 +/- 0.03, respectively, were from natural origin. These results were also supported by the parameters of n-C-12/n-C-18 and UCM/n-alkanes ratios and by the correlation between the parameters of ICP, n-C-17/n-C-18 UCM/n-alkanes and COD, Pb, Cr for all sampling points.
