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Gyula Vatai - One of the best experts on this subject based on the ideXlab platform.

  • Treatment of high arsenic content wastewater by Membrane Filtration
    Desalination, 2009
    Co-Authors: E. Fogarassy, Ildikó Galambos, Erika Békássy-molnár, Gyula Vatai
    Abstract:

    In this study, nanoFiltration (NF) and reverse osmosis (RO) were used in laboratory scale to concentrate As containing wastewater. Cross flow Membrane Filtration apparatus was applied in batch mode with recycling the retentate. Then the retentate of Membrane Filtration was treated with lime (Ca(OH)2) and sulfur hydrogen (H2S) to help the precipitation for producing clean water and a low volume, highly concentrated As waste.

  • Membrane Filtration of Mozzarella whey
    Desalination, 2004
    Co-Authors: Atilla Rektor, Gyula Vatai
    Abstract:

    Abstract Whey is a by-product of cheese production which is used mainly as animal feed or released into the wastewater treatment process, although it is rich in valuable components. Recent developments in Membrane Filtration have provided exciting new opportunities for large-scale protein and lactose fractionation. The ahn of this research was to develop a complex Membrane Filtration technology for whey processing. The microFiltration and ultraFiltration processes were carried out with pilot-scale equipment. For these Filtration procedures three modules — hollow-fibre, ceramic and spiral wound — were used. The permeates from micro- and ultraFiltration (MF and UF), and the original whey sample were filtered on nanoFiltration (NF) and reverse osmosis (RO) equipment. After the measurements new methods for using whey were proposed. With this complex method cheese production can be redesigned to a more environmentally friendly and efficient process. All Membrane Filtration methods were used to find the potential applications of Membrane systems for whey recycling and utilization.

  • Membrane Filtration of mozzarella whey
    Desalination, 2004
    Co-Authors: Atilla Rektor, Gyula Vatai
    Abstract:

    Whey is a by-product of cheese production which is used mainly as animal feed or released into the wastewater treatment process, although it is rich in valuable components. Recent developments in Membrane Filtration have provided exciting new opportunities for large-scale protein and lactose fractionation. The aim of this research was to develop a complex Membrane Filtration technology for whey processing. The microFiltration and ultraFiltration processes were carried out with pilot-scale equipment. For these Filtration procedures three modules - hollow-fibre, ceramic and spiral wound - were used. The permeates from micro- and ultraFiltration (MF and UF), and the original whey sample were filtered on nanoFiltration (NF) and reverse osmosis (RO) equipment. After the measurements new methods for using whey were proposed. With this complex method cheese production can be redesigned to a more environmentally friendly and efficient process. All Membrane Filtration methods were used to find the potential applications of Membrane systems for whey recycling and utilization. ?? 2004 Elsevier B.V. All rights reserved.

Atilla Rektor - One of the best experts on this subject based on the ideXlab platform.

  • Membrane Filtration of Mozzarella whey
    Desalination, 2004
    Co-Authors: Atilla Rektor, Gyula Vatai
    Abstract:

    Abstract Whey is a by-product of cheese production which is used mainly as animal feed or released into the wastewater treatment process, although it is rich in valuable components. Recent developments in Membrane Filtration have provided exciting new opportunities for large-scale protein and lactose fractionation. The ahn of this research was to develop a complex Membrane Filtration technology for whey processing. The microFiltration and ultraFiltration processes were carried out with pilot-scale equipment. For these Filtration procedures three modules — hollow-fibre, ceramic and spiral wound — were used. The permeates from micro- and ultraFiltration (MF and UF), and the original whey sample were filtered on nanoFiltration (NF) and reverse osmosis (RO) equipment. After the measurements new methods for using whey were proposed. With this complex method cheese production can be redesigned to a more environmentally friendly and efficient process. All Membrane Filtration methods were used to find the potential applications of Membrane systems for whey recycling and utilization.

  • Membrane Filtration of mozzarella whey
    Desalination, 2004
    Co-Authors: Atilla Rektor, Gyula Vatai
    Abstract:

    Whey is a by-product of cheese production which is used mainly as animal feed or released into the wastewater treatment process, although it is rich in valuable components. Recent developments in Membrane Filtration have provided exciting new opportunities for large-scale protein and lactose fractionation. The aim of this research was to develop a complex Membrane Filtration technology for whey processing. The microFiltration and ultraFiltration processes were carried out with pilot-scale equipment. For these Filtration procedures three modules - hollow-fibre, ceramic and spiral wound - were used. The permeates from micro- and ultraFiltration (MF and UF), and the original whey sample were filtered on nanoFiltration (NF) and reverse osmosis (RO) equipment. After the measurements new methods for using whey were proposed. With this complex method cheese production can be redesigned to a more environmentally friendly and efficient process. All Membrane Filtration methods were used to find the potential applications of Membrane systems for whey recycling and utilization. ?? 2004 Elsevier B.V. All rights reserved.

Andrew L Zydney - One of the best experts on this subject based on the ideXlab platform.

  • protein separations using Membrane Filtration new opportunities for whey fractionation
    International Dairy Journal, 1998
    Co-Authors: Andrew L Zydney
    Abstract:

    There is considerable commercial interest in the preparation of individual whey proteins for food, nutraceutical, and therapeutic applications. Recent developments in Membrane Filtration have provided exciting new opportunities for large-scale protein fractionation. This manuscript provides an overview of the previous work on protein separations using Membrane Filtration, including the importance of solution pH and ionic strength to obtain very high resolution separations. Specific data are shown for the separation of hemoglobin from BSA and for the purification of immunoglobulins from a complex feed stream using a gradient diaFiltration process. The potential applications of Membrane systems for whey protein fractionation are also examined.

Marianne Nystrom - One of the best experts on this subject based on the ideXlab platform.

  • Membrane Filtration enhanced by ultrasound a review
    Desalination, 2005
    Co-Authors: Hanna Kyllonen, P Pirkonen, Marianne Nystrom
    Abstract:

    Abstract Fouling is one of the main problems in Membrane Filtration. The use of additional forces to aid Filtration has gained increasing attention in recent years. One additional force is ultrasound. This paper reviews the theory of ultrasound-induced effects, apparatuses used in ultrasound-aided Membrane Filtration, effects of different process parameters on flux and effects of ultrasound irradiation on Membranes. Ultrasound irradiation does not influence the intrinsic permeability of Membranes. It increases the flux by breaking the concentration polarisation and cake layer at the Membrane surface. The liquid jet serves as the basis for cleaning, but there are also other cavitational mechanisms which have been discovered to lead to particle release from the fouled Membrane. There are several parameters that influence the effectiveness of ultrasound treatment. The effects of frequency, power intensity, feed properties, Membrane properties, cross-flow velocity, temperature and pressure are reviewed. Membrane durability during ultrasound treatment is important to take into account. Damage due to ultrasound irradiation on the Membrane surface has been discovered in some research, whereas in other studies even a frequent use of ultrasound did not affect the Membranes. Ultrasonically enhanced Membrane Filtration has not yet been widely commercialised. The main reasons for prevention of a break-through are the development stagnation of transducer technology for Membrane Filtration and the control of Membrane erosion.

V. A. Kolesnikov - One of the best experts on this subject based on the ideXlab platform.