Yazar "Yorukoglu, Eren" seçeneğine göre listele

Listeleniyor 1 - 8 / 8
  • Küçük Resim Yok
    Öğe
    Application of nanofiltration for reuse of municipal wastewater and quality analysis of product water
    (Elsevier Science Bv, 2013) Bunani, Samuel; Yorukoglu, Eren; Sert, Gokhan; Yuksel, Umran; Yuksel, Mithat; Kabay, Nalan
    In this study, the municipal wastewater treated by biological methods was used for further treatment by nanofiltration method for wastewater reuse. For this purpose, different nanofiltration (NF) membranes, such as CK. NF-90, and NF-270 were employed. The quality analysis of product water was carried out using various analytical techniques. The results revealed that the NF-90 membrane can produce the best water quality compared to other two membranes. The CK membrane showed also a good rejection property after NF-90 membrane but its big inconvenience is that it gave a lower water flux. Despite the good water flux by NF-270, the permeate quality obtained with this membrane was not as good as obtained with the NF-90 and CK membranes. (C) 2012 Elsevier B.V. All rights reserved.
  • Küçük Resim Yok
    Öğe
    Application of nanofiltration for reuse of wastewater
    (Inderscience Enterprises Ltd, 2014) Bunani, Samuel; Yorukoglu, Eren; Yuksel, Umran; Kabay, Nalan; Yuksel, Mithat; Sert, Gokhan; Pek, Taylan Ozgur
    The present research is a part of efforts to reuse wastewater by applying nanofiltration (NF) method for the secondary treatment of bio-treated wastewater and to check the quality of product water as irrigation water by using various analytical methods. For this, the performances of three different NF membranes (CK, GE-Osmonics; NF-270 and NF-90, Dow-FilmTech) were investigated using a cross-flow flat-sheet membrane test unit (SEPA CF-II, GE). The bio-treated wastewater obtained from ITOB-OSB Wastewater Treatment Plant, Izmir where membrane bioreactor (MBR) technology is employed as a treatment process has a high salinity and a high conductivity which make the treated water unsuitable for irrigation purposes. After applying NF separation for the three membranes at 10 bar as operating pressure, it was concluded that NF-90 gave the best quality of product water for almost all analysed parameters such as salinity calcium, magnesium, sodium, potassium, bicarbonate, chloride, sulphate, phosphate-phosphorous, nitrate-nitrogen, and conductivity.
  • Küçük Resim Yok
    Öğe
    Application of reverse osmosis for reuse of secondary treated urban wastewater in agricultural irrigation
    (Elsevier Science Bv, 2015) Bunani, Samuel; Yorukoglu, Eren; Yuksel, Umran; Kabay, Nalan; Yuksel, Mithat; Sert, Gokhan
    Secondary treated urban wastewater was further polished by reverse osmosis (RO) membranes and the water quality of RO permeates was assessed for their utilizations in agricultural irrigation. The performances of brackish water reverse osmosis (AK-BWRO) and seawater reverse osmosis (AD-SWRO) membranes were investigated at 10 bar as applied pressure. The AD-SWRO membrane was tested also at 20 bar. Conductivity, salinity, chemical oxygen demand (COD), total organic carbon (TOC) and color were rejected by AK-BWRO membrane with average values of 94.6%, 95.2%, 85.8%, 76.4% and 91.3%, respectively, whereas the same contaminants were rejected with average values of 98.3%, 98.3%, 84.6%, 69.7% and 86.6%, respectively with AD-SWRO membrane. Except for TOC, AD-SWRO membrane showed similar rejections at 10 bar and at 20 bar of applied pressures. Although their rejection efficiencies were similar, AK-BWRO and AD-SWRO membranes revealed differences in their permeate flux which is 38.0 L/hm(2) for AK-BWRO membrane and 3.81 L/hm(2) for AD-SWRO membrane. An average value of permeate flux was 14.8 L/hm(2) at 20 bar for AD-SWRO membrane. Assessment of water quality of product water obtained by blending of the two effluents (secondary treated urban wastewater and RO permeate) based on salinity, electrical conductivity, specific ionic toxicity and miscellaneous hazards proved that blending of 20-30% of secondary treated effluent and 80-70% of RO permeate is a good strategy to minimize the unwanted components in treated water for its reuse in agricultural irrigation. (C) 2014 Elsevier B.V. All rights reserved.
  • Küçük Resim Yok
    Öğe
    Application of reverse osmosis for reuse of secondary treated urban wastewater in agricultural irrigation
    (Elsevier Science Bv, 2015) Bunani, Samuel; Yorukoglu, Eren; Yuksel, Umran; Kabay, Nalan; Yuksel, Mithat; Sert, Gokhan
    Secondary treated urban wastewater was further polished by reverse osmosis (RO) membranes and the water quality of RO permeates was assessed for their utilizations in agricultural irrigation. The performances of brackish water reverse osmosis (AK-BWRO) and seawater reverse osmosis (AD-SWRO) membranes were investigated at 10 bar as applied pressure. The AD-SWRO membrane was tested also at 20 bar. Conductivity, salinity, chemical oxygen demand (COD), total organic carbon (TOC) and color were rejected by AK-BWRO membrane with average values of 94.6%, 95.2%, 85.8%, 76.4% and 91.3%, respectively, whereas the same contaminants were rejected with average values of 98.3%, 98.3%, 84.6%, 69.7% and 86.6%, respectively with AD-SWRO membrane. Except for TOC, AD-SWRO membrane showed similar rejections at 10 bar and at 20 bar of applied pressures. Although their rejection efficiencies were similar, AK-BWRO and AD-SWRO membranes revealed differences in their permeate flux which is 38.0 L/hm(2) for AK-BWRO membrane and 3.81 L/hm(2) for AD-SWRO membrane. An average value of permeate flux was 14.8 L/hm(2) at 20 bar for AD-SWRO membrane. Assessment of water quality of product water obtained by blending of the two effluents (secondary treated urban wastewater and RO permeate) based on salinity, electrical conductivity, specific ionic toxicity and miscellaneous hazards proved that blending of 20-30% of secondary treated effluent and 80-70% of RO permeate is a good strategy to minimize the unwanted components in treated water for its reuse in agricultural irrigation. (C) 2014 Elsevier B.V. All rights reserved.
  • Küçük Resim Yok
    Öğe
    Application of reverse osmosis for reuse of secondary treated urban wastewater in agricultural irrigation
    (Elsevier Science Bv, 2015) Bunani, Samuel; Yorukoglu, Eren; Yuksel, Umran; Kabay, Nalan; Yuksel, Mithat; Sert, Gokhan
    Secondary treated urban wastewater was further polished by reverse osmosis (RO) membranes and the water quality of RO permeates was assessed for their utilizations in agricultural irrigation. The performances of brackish water reverse osmosis (AK-BWRO) and seawater reverse osmosis (AD-SWRO) membranes were investigated at 10 bar as applied pressure. The AD-SWRO membrane was tested also at 20 bar. Conductivity, salinity, chemical oxygen demand (COD), total organic carbon (TOC) and color were rejected by AK-BWRO membrane with average values of 94.6%, 95.2%, 85.8%, 76.4% and 91.3%, respectively, whereas the same contaminants were rejected with average values of 98.3%, 98.3%, 84.6%, 69.7% and 86.6%, respectively with AD-SWRO membrane. Except for TOC, AD-SWRO membrane showed similar rejections at 10 bar and at 20 bar of applied pressures. Although their rejection efficiencies were similar, AK-BWRO and AD-SWRO membranes revealed differences in their permeate flux which is 38.0 L/hm(2) for AK-BWRO membrane and 3.81 L/hm(2) for AD-SWRO membrane. An average value of permeate flux was 14.8 L/hm(2) at 20 bar for AD-SWRO membrane. Assessment of water quality of product water obtained by blending of the two effluents (secondary treated urban wastewater and RO permeate) based on salinity, electrical conductivity, specific ionic toxicity and miscellaneous hazards proved that blending of 20-30% of secondary treated effluent and 80-70% of RO permeate is a good strategy to minimize the unwanted components in treated water for its reuse in agricultural irrigation. (C) 2014 Elsevier B.V. All rights reserved.
  • Küçük Resim Yok
    Öğe
    Performances of some NF and RO membranes for desalination of MBR treated wastewater
    (Elsevier Science Bv, 2017) Sert, Gokhan; Bunani, Samuel; Yorukoglu, Eren; Kabay, Nalan; Egemen, Ozdemir; Arda, Muserref; Yuksel, Mithat
    In recent years, because of both lowered discharge limits and reduction of usable water sources, reutilization of water became inevitable. This situation makes the application of advanced water treatment technologies compulsory. In this study, applicability of nanofiltration (NF) and reverse osmosis (RO) methods was investigated for reuse of industrial wastewater treated with advanced treatment method at organized industrial zone. For this purpose, two NF (HL-GE and DL-GE) and one RO (AG-BWRO) membranes were used at 10 bar of applied pressure. Permeability test revealed that HL membrane exhibited the highest permeability with 7.22 +/- 0.79 L/m(2) h bar of permeability constant followed by AG membrane with a permeability constant of 6.03 +/- 0.25 L/m(2) h bar. Less permeable membrane was DL with a permeability constant of 2.08 +/- 0.11 L/m(2) h bar. In terms of rejection performance, conductivity, salinity, chemical oxygen demand (COD), total organic carbon (TOC), color, divalent ions (Ca2+, Mg2+ and SO42-) and monovalent ions (Na+, K+, Cl- and HCO3-) were rejected by HL membrane with an average rejection of 37.2 +/- 2.1%, 38.6 +/- 2.5%, 72.5 +/- 5.5%, 79.9 +/- 6.1%, 85.4 +/- 1.2%, 86.0 +/- 0.5%, 88.8 +/- 0.3%, 99.9 +/- 0.0%, 46.0 +/- 0.9%, 27.0 +/- 0.3% 17.9 +/- 1.1%, 64.3 +/- 2.8%, respectively. The respective rejections by DL membrane were 31.1 +/- 0.8%, 31.2 +/- 1.1%, 36.8 +/- 16.4%, 68.2 +/- 7.3%, 81.0 +/- 4.0%, 77.9 +/- 0.7%, 84.7 +/- 07%, 99.9 +/- 0.0%, 41.0 +/- 04%, 18.4 +/- 1.7%, 14.0 +/- 1.3%, and 45.2 +/- 2.7%. On the other hand, higher water quality was obtained with AG-BWRO membrane. AG-BWRO achieved conductivity, salinity, COD, TOC and color rejections of 96.8 +/- 0.2%, 96.9 +/- 0.1%, 74.7 +/- 2.8%, 90.5 +/- 4.8% and 87.6 +/- 1.9%, respectively. Divalent ions and monovalent ions were rejected by AG-BWRO membrane with an average rejection of higher than 94%. In conclusion, AG-BWRO membrane was found to be the best membrane considering both product water quality and quantity. DL membrane was found to be the worst one among the three membranes investigated in this work. (C) 2017 Published by Elsevier Ltd.
  • Küçük Resim Yok
    Öğe
    Removal of boron from water through soluble polymer based on N-methyl-D-glucamine and regenerated-cellulose membrane
    (Taylor & Francis Inc, 2016) Sanchez, Julio; Wolska, Joanna; Yorukoglu, Eren; Rivas, Bernabe L.; Bryjak, Marek; Kabay, Nalan
    This paper presents a systematic study of boron removal from simulated and real aqueous systems in northern Chile by means of polymer-enhanced ultrafiltration. Poly(glycidyl methacrylate-N-methyl-D-glucamine), P(GMA-NMG), was used to form complexes with boron, and a cellulose-regenerated membrane was used as a complex separator. The first tests were performed using two simulated water samples from northern Chile with the same pH and concentrations of boron, arsenic, and chloride. P(GMA-NMG) showed a maximum of 60% boron retention for these artificial waters. Studies of boron enrichment using P(GMA-NMG) with simulated water showed that the soluble polymer reached maximum retention capacity values between 2.0 and 4.0mg of B retained per gram of polymer. SEM images and FTIR spectroscopy confirm the deposition of the polymer on the surface of the membrane after polymer-enhanced ultrafiltration, which explains the permeate flux decay observed in retention experiments. Finally, sorption-desorption tests of boron from real water samples show that it is possible to use the polymer P(GMA-NMG) to remove boron from waters of northern Chile. It is also possible to release the retentate and regenerate the water-soluble polymer.
  • Küçük Resim Yok
    Öğe
    Utilization of reverse osmosis (RO) for reuse of MBR-treated wastewater in irrigation-preliminary tests and quality analysis of product water
    (Springer Heidelberg, 2018) Bunani, Samuel; Yorukoglu, Eren; Sert, Gokhan; Kabay, Nalan; Yuksel, Umran; Yuksel, Mithat; Egemen, Ozdemir; Pek, Taylan Ozgur
    Membrane bioreactor (MBR) effluent collected from a wastewater treatment plant installed at an industrial zone was used for reverse osmosis (RO) membrane tests in the laboratory. For this, two different GE Osmonics RO membranes (AK-BWRO and AD-SWRO) were employed. The results showed that AK-brackish water reverse osmosis (AK-BWRO) and AD-seawater reverse osmosis (AD-SWRO) membranes have almost similar rejection performances regarding analyzed parameters such as conductivity, salinity, color, chemical oxygen demand (COD), and total organic carbon (TOC). On the other hand, these membranes behaved quite differently considering their permeate water flux at the same applied pressure of 10 bar. AD-SWRO membrane was also tested at 20 bar. The results revealed that AD-SWRO membrane had almost the same rejections either at 10 or at 20 bar of applied pressure. Compared with irrigation water standards, AK-BWRO and AD-SWRO gave an effluent with low salinity value and sodium adsorption ratio (SAR) which makes it unsuitable for irrigation due to the infiltration problems risi0ng from unbalanced values of salinity and SAR. Combination of MBR effluent and RO effluent at respective proportions of 0.3:0.7 and 0.4:0.6 for AK-BWRO and AD-SWRO, respectively, are the optimum mixing ratios to overcome the infiltration hazard problem. Choice of less-sensitive crops to chloride and sodium ions is another strategy to overcome all hazards which may arise from above suggested mixing proportions.