The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform
Hala Elkamah - One of the best experts on this subject based on the ideXlab platform.
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treatment of fruit Juice Industry wastewater in a two stage anaerobic hybrid ah reactor system followed by a sequencing batch reactor sbr
Environmental Technology, 2012Co-Authors: Ahmed Tawfik, Hala ElkamahAbstract:This study has been carried out to assess the performance of a combined system consisting of an anaerobic hybrid (AH) reactor followed by a sequencing batch reactor (SBR) for treatment of fruit-Juice Industry wastewater at a temperature of 26 °C. Three experimental runs were conducted in this investigation. In the first experiment, a single-stage AH reactor was operated at a hydraulic retention time (HRT) of 10.2 h and organic loading rate (OLR) of 11.8 kg COD m−3 d−1. The reactor achieved a removal efficiency of 42% for chemical oxygen demand (COD), 50.8% for biochemical oxygen demand (BOD5), 50.3% for volatile fatty acids (VFA) and 56.4% for total suspended solids (TSS). In the second experiment, two AH reactors connected in series achieved a higher removal efficiency for COD (67.4%), BOD5 (77%), and TSS (71.5%) at a total HRT of 20 h and an OLR of 5.9 kg COD m−3 d−1. For removal of the remaining portions of COD, BOD5 and TSS from the effluent of the two-stage AH system, a sequencing batch reactor (SBR)...
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treatment of high strength wastewater from fruit Juice Industry using integrated anaerobic aerobic system
Desalination, 2010Co-Authors: Hala Elkamah, Ahmed Tawfik, Mohamed E Mahmoud, Hisham AbdelhalimAbstract:Abstract This work aimed to study the treatment of wastewater generated from fruit Juice Industry (24–30 m3/batch). Three treatment schemes have been investigated. The first treatment scheme was a batch activated sludge (AS) system and was operated at different aeration time up to 48 h. The second scheme was two-stage up-flow anaerobic sponge reactors (UASRs). Two-stage UASRs were operated at a total hydraulic retention time (HRT) of 13 h corresponding to an organic loading rate (OLR) of 8.7 kg COD/m3 d. While, the third treatment scheme consisted of a two-stage UASR followed by an AS system which was operated at three different HRTs namely 10, 12, and 14 h. Long term experiments indicated the superiority of the third treatment scheme which operated at a total HRT of 23 h (UASRs: 13 h and AS: 10 h) in terms of chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total suspended solids (TSS) and oil & grease removal. The integrated system achieved an overall removal efficiency of 97.5% for COD, 99.2% for BOD5, 94.5% for TSS and 98.9% for oil & grease. The treated wastewater produced from the UASR–AS system complied with the standards set by the Egyptian law regulating the reuse of treated wastewater in agricultural purposes.
Ahmed Tawfik - One of the best experts on this subject based on the ideXlab platform.
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Treatment of fruit-Juice Industry wastewater in a two-stage anaerobic hybrid (AH) reactor system followed by a sequencing batch reactor (SBR).
Environmental technology, 2020Co-Authors: Ahmed Tawfik, Hala El-kamahAbstract:This study has been carried out to assess the performance of a combined system consisting of an anaerobic hybrid (AH) reactor followed by a sequencing batch reactor (SBR) for treatment of fruit-Juice Industry wastewater at a temperature of 26 degrees C. Three experimental runs were conducted in this investigation. In the first experiment, a single-stage AH reactor was operated at a hydraulic retention time (HRT) of 10.2 h and organic loading rate (OLR) of 11.8 kg COD m(-3) d(-1). The reactor achieved a removal efficiency of 42% for chemical oxygen demand (COD), 50.8% for biochemical oxygen demand (BOD5), 50.3% for volatile fatty acids (VFA) and 56.4% for total suspended solids (TSS). In the second experiment, two AH reactors connected in series achieved a higher removal efficiency for COD (67.4%), BOD5 (77%), and TSS (71.5%) at a total HRT of 20 h and an OLR of 5.9 kg COD m(-3) d(-1). For removal of the remaining portions of COD, BOD5 and TSS from the effluent of the two-stage AH system, a sequencing batch reactor (SBR) was investigated as a post-treatment unit. The reactor achieved a substantial reduction in total COD, resulting in an average effluent concentration of 50 mg L(-1) at an HRT of 11 h and OLR of 5.3 kg COD m(-3) d(-1). Almost complete removal of total BOD5 and oil and grease was achieved, i.e. 10 mg L(-1) and 1.2 mg L(-1), respectively, remained in the final effluent of the SBR.
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treatment of fruit Juice Industry wastewater in a two stage anaerobic hybrid ah reactor system followed by a sequencing batch reactor sbr
Environmental Technology, 2012Co-Authors: Ahmed Tawfik, Hala ElkamahAbstract:This study has been carried out to assess the performance of a combined system consisting of an anaerobic hybrid (AH) reactor followed by a sequencing batch reactor (SBR) for treatment of fruit-Juice Industry wastewater at a temperature of 26 °C. Three experimental runs were conducted in this investigation. In the first experiment, a single-stage AH reactor was operated at a hydraulic retention time (HRT) of 10.2 h and organic loading rate (OLR) of 11.8 kg COD m−3 d−1. The reactor achieved a removal efficiency of 42% for chemical oxygen demand (COD), 50.8% for biochemical oxygen demand (BOD5), 50.3% for volatile fatty acids (VFA) and 56.4% for total suspended solids (TSS). In the second experiment, two AH reactors connected in series achieved a higher removal efficiency for COD (67.4%), BOD5 (77%), and TSS (71.5%) at a total HRT of 20 h and an OLR of 5.9 kg COD m−3 d−1. For removal of the remaining portions of COD, BOD5 and TSS from the effluent of the two-stage AH system, a sequencing batch reactor (SBR)...
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treatment of high strength wastewater from fruit Juice Industry using integrated anaerobic aerobic system
Desalination, 2010Co-Authors: Hala Elkamah, Ahmed Tawfik, Mohamed E Mahmoud, Hisham AbdelhalimAbstract:Abstract This work aimed to study the treatment of wastewater generated from fruit Juice Industry (24–30 m3/batch). Three treatment schemes have been investigated. The first treatment scheme was a batch activated sludge (AS) system and was operated at different aeration time up to 48 h. The second scheme was two-stage up-flow anaerobic sponge reactors (UASRs). Two-stage UASRs were operated at a total hydraulic retention time (HRT) of 13 h corresponding to an organic loading rate (OLR) of 8.7 kg COD/m3 d. While, the third treatment scheme consisted of a two-stage UASR followed by an AS system which was operated at three different HRTs namely 10, 12, and 14 h. Long term experiments indicated the superiority of the third treatment scheme which operated at a total HRT of 23 h (UASRs: 13 h and AS: 10 h) in terms of chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total suspended solids (TSS) and oil & grease removal. The integrated system achieved an overall removal efficiency of 97.5% for COD, 99.2% for BOD5, 94.5% for TSS and 98.9% for oil & grease. The treated wastewater produced from the UASR–AS system complied with the standards set by the Egyptian law regulating the reuse of treated wastewater in agricultural purposes.
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Treatment of high strength wastewater from fruit Juice Industry using integrated anaerobic/aerobic system.
Desalination, 2010Co-Authors: Hala El-kamah, Ahmed Tawfik, Mohamed E Mahmoud, Hisham Abdel-halimAbstract:Abstract This work aimed to study the treatment of wastewater generated from fruit Juice Industry (24–30 m3/batch). Three treatment schemes have been investigated. The first treatment scheme was a batch activated sludge (AS) system and was operated at different aeration time up to 48 h. The second scheme was two-stage up-flow anaerobic sponge reactors (UASRs). Two-stage UASRs were operated at a total hydraulic retention time (HRT) of 13 h corresponding to an organic loading rate (OLR) of 8.7 kg COD/m3 d. While, the third treatment scheme consisted of a two-stage UASR followed by an AS system which was operated at three different HRTs namely 10, 12, and 14 h. Long term experiments indicated the superiority of the third treatment scheme which operated at a total HRT of 23 h (UASRs: 13 h and AS: 10 h) in terms of chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total suspended solids (TSS) and oil & grease removal. The integrated system achieved an overall removal efficiency of 97.5% for COD, 99.2% for BOD5, 94.5% for TSS and 98.9% for oil & grease. The treated wastewater produced from the UASR–AS system complied with the standards set by the Egyptian law regulating the reuse of treated wastewater in agricultural purposes.
Nese Tufekci - One of the best experts on this subject based on the ideXlab platform.
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Influence of nanoparticles on filterability of fruit-Juice Industry wastewater using submerged membrane bioreactor.
Water science and technology : a journal of the International Association on Water Pollution Research, 2020Co-Authors: Guler Turkoglu Demirkol, Nadir Dizge, Turkan Ormanci Acar, Oyku Mutlu Salmanli, Nese TufekciAbstract:In this study, polyethersulfone (PES) ultrafiltration membrane surface was modified with nano-sized zinc oxide (nZnO) and silver (nAg) to improve the membrane filterability of the mixed liquor and used to treat fruit-Juice Industry wastewater in a submerged membrane bioreactor (MBR). The nAg was synthesized using three different methods. In the first method, named as nAg-M1, PES membrane was placed on the membrane module and nAg solution was passed through the membrane for 24 h at 25 ± 1 °C. In the second method, named as nAg-M2, PES membrane was placed in a glass container and it was shaken for 24 h at 150 rpm at 25 ± 1 °C. In the third method, named as nAg-M3, Ag nanoparticles were loaded onto PES membrane in L-ascorbic acid solution (0.1 mol/L) at pH 2 for 24 h at 150 rpm at 25 ± 1 °C. For the preparation of nZnO coated membrane, nZnO nanoparticles solution was passed through the membrane for 24 h at 25 ± 1 °C. Anti-fouling performance of pristine and coated membranes was examined using the submerged MBR. The results showed that nZnO and nAg-M3 membranes showed lower flux decline compared with pristine membrane. Moreover, pristine and coated PES membranes were characterized using a permeation test, contact angle goniometer, and scanning electron microscopy.
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influence of nanoparticles on filterability of fruit Juice Industry wastewater using submerged membrane bioreactor
Water Science and Technology, 2017Co-Authors: Guler Turkoglu Demirkol, Nadir Dizge, Turkan Ormanci Acar, Oyku Mutlu Salmanli, Nese TufekciAbstract:In this study, polyethersulfone (PES) ultrafiltration membrane surface was modified with nano-sized zinc oxide (nZnO) and silver (nAg) to improve the membrane filterability of the mixed liquor and used to treat fruit-Juice Industry wastewater in submerged membrane bioreactor (MBR). nAg was synthesized using three different methods. In the first method, named as nAg-M1, PES membrane was placed on the membrane module and nAg solution was passed through the membrane for 24 h at 25 ± 1 °C. In the second method, named as nAg-M2, PES membrane was placed in a glass container and it was shaken for 24 h at 150 rpm at 25 ± 1 °C. In the third method, named as nAg-M3, Ag nanoparticles was loaded to PES membrane in L-ascorbic acid solution (0.1 mol/L) at pH 2 for 24 h at 150 rpm at 25 ± 1 °C. For the preparation of nZnO coated membrane, nZnO nanoparticles solution was passed through the membrane for 24 h at 25 ± 1 °C. Anti-fouling performance of pristine and coated membranes was examined using submerged MBR. The results showed that nZnO and nAg-M3 membranes showed lower flux decline compared with pristine membrane. Moreover, pristine and coated PES membranes were characterized using permeation test, contact angle goniometer, and scanning electron microscopy.
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monitoring and examination of adaptation period of microorganisms in membrane bioreactor system treating fruit Juice Industry wastewaters
International Journal of Global Warming, 2014Co-Authors: Guler Turkoglu Demirkol, Suleyman Ovez, Sevgi Gunes Durak, Nese TufekciAbstract:In this study, fruit Juice Industry wastewaters by using MBR process have been monitored and examined considering effective microorganisms and changes in biodiversity during the treatment period. Microbiological examinations have been carried out using conventional microbiological methods and microscopic observations. Eukaryotic and prokaryotic microorganisms and also floc structure of the activated sludge were identified and characterised. On the other hand, environmental parameters effective on microbial diversity of MBR process treating fruit Juice wastewaters have been identified and discussed. Fruit Juice wastewaters supported almost all kinds of microorganisms, primarily filamentous fungi Aspergillusspp., and ciliated protozoa Coccidiaspp. and eliminated nematodes from the MBR system.
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aerobic and anaerobic treatment of fruit Juice Industry effluents
Journal of Scientific & Industrial Research, 2006Co-Authors: Emine Elmaslar Ozbas, Nese Tufekci, Gulsum Yilmaz, Suleyman OvezAbstract:This study investigates biological treatment of fruit Juice Industry effluents in sequencing batch reactor (SBR), activated sludge reactor (ASR) and anaerobic upflow sludge blanket reactor (UASB). At anaerobic biological treatability studies, seed sludge was acclimated to the medium and 95% of COD removal was obtained within a few weeks. At the end of anaerobic study, organic loading rate was increased to 5 kg COD/m 3 -day and the hydraulic retention time was decreased to 2.3 days. At the aerobic biological treatability studies, 90-95% soluble COD removal was achieved for both wastewaters (sour cherry and apple) in SBR and in ASR. In addition to aerobic biological treatability studies, microbiological investigation, and kinetic and stociometric coefficients were determined. At the end of microbiological examination, fungi overwhelmingly dominated the system.
Hala El-kamah - One of the best experts on this subject based on the ideXlab platform.
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Treatment of fruit-Juice Industry wastewater in a two-stage anaerobic hybrid (AH) reactor system followed by a sequencing batch reactor (SBR).
Environmental technology, 2020Co-Authors: Ahmed Tawfik, Hala El-kamahAbstract:This study has been carried out to assess the performance of a combined system consisting of an anaerobic hybrid (AH) reactor followed by a sequencing batch reactor (SBR) for treatment of fruit-Juice Industry wastewater at a temperature of 26 degrees C. Three experimental runs were conducted in this investigation. In the first experiment, a single-stage AH reactor was operated at a hydraulic retention time (HRT) of 10.2 h and organic loading rate (OLR) of 11.8 kg COD m(-3) d(-1). The reactor achieved a removal efficiency of 42% for chemical oxygen demand (COD), 50.8% for biochemical oxygen demand (BOD5), 50.3% for volatile fatty acids (VFA) and 56.4% for total suspended solids (TSS). In the second experiment, two AH reactors connected in series achieved a higher removal efficiency for COD (67.4%), BOD5 (77%), and TSS (71.5%) at a total HRT of 20 h and an OLR of 5.9 kg COD m(-3) d(-1). For removal of the remaining portions of COD, BOD5 and TSS from the effluent of the two-stage AH system, a sequencing batch reactor (SBR) was investigated as a post-treatment unit. The reactor achieved a substantial reduction in total COD, resulting in an average effluent concentration of 50 mg L(-1) at an HRT of 11 h and OLR of 5.3 kg COD m(-3) d(-1). Almost complete removal of total BOD5 and oil and grease was achieved, i.e. 10 mg L(-1) and 1.2 mg L(-1), respectively, remained in the final effluent of the SBR.
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Treatment of high strength wastewater from fruit Juice Industry using integrated anaerobic/aerobic system.
Desalination, 2010Co-Authors: Hala El-kamah, Ahmed Tawfik, Mohamed E Mahmoud, Hisham Abdel-halimAbstract:Abstract This work aimed to study the treatment of wastewater generated from fruit Juice Industry (24–30 m3/batch). Three treatment schemes have been investigated. The first treatment scheme was a batch activated sludge (AS) system and was operated at different aeration time up to 48 h. The second scheme was two-stage up-flow anaerobic sponge reactors (UASRs). Two-stage UASRs were operated at a total hydraulic retention time (HRT) of 13 h corresponding to an organic loading rate (OLR) of 8.7 kg COD/m3 d. While, the third treatment scheme consisted of a two-stage UASR followed by an AS system which was operated at three different HRTs namely 10, 12, and 14 h. Long term experiments indicated the superiority of the third treatment scheme which operated at a total HRT of 23 h (UASRs: 13 h and AS: 10 h) in terms of chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total suspended solids (TSS) and oil & grease removal. The integrated system achieved an overall removal efficiency of 97.5% for COD, 99.2% for BOD5, 94.5% for TSS and 98.9% for oil & grease. The treated wastewater produced from the UASR–AS system complied with the standards set by the Egyptian law regulating the reuse of treated wastewater in agricultural purposes.
Hisham Abdelhalim - One of the best experts on this subject based on the ideXlab platform.
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treatment of high strength wastewater from fruit Juice Industry using integrated anaerobic aerobic system
Desalination, 2010Co-Authors: Hala Elkamah, Ahmed Tawfik, Mohamed E Mahmoud, Hisham AbdelhalimAbstract:Abstract This work aimed to study the treatment of wastewater generated from fruit Juice Industry (24–30 m3/batch). Three treatment schemes have been investigated. The first treatment scheme was a batch activated sludge (AS) system and was operated at different aeration time up to 48 h. The second scheme was two-stage up-flow anaerobic sponge reactors (UASRs). Two-stage UASRs were operated at a total hydraulic retention time (HRT) of 13 h corresponding to an organic loading rate (OLR) of 8.7 kg COD/m3 d. While, the third treatment scheme consisted of a two-stage UASR followed by an AS system which was operated at three different HRTs namely 10, 12, and 14 h. Long term experiments indicated the superiority of the third treatment scheme which operated at a total HRT of 23 h (UASRs: 13 h and AS: 10 h) in terms of chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total suspended solids (TSS) and oil & grease removal. The integrated system achieved an overall removal efficiency of 97.5% for COD, 99.2% for BOD5, 94.5% for TSS and 98.9% for oil & grease. The treated wastewater produced from the UASR–AS system complied with the standards set by the Egyptian law regulating the reuse of treated wastewater in agricultural purposes.
