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Wyświetlanie 1-15 z 131
Tytuł:
Anatomical and physiological adaptation of mangrove wetlands in east coast of Tamil Nadu
Autorzy:
Vinoth, R.
Kumaravel, S.
Ranganathan, R.
Powiązania:
https://bibliotekanauki.pl/articles/1075511.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Adaptation
Anatomy
Mangroves
Salinity
Ultrafiltration
Opis:
The mangrove adaptations in the environment are the majority essential for the sustainable survival, development and intertidal zones due to special ability of salt tolerance. Mangroves possess a general characteristic to tolerating high salinity of seawater. Notably, they normalize ion homeostasis below brackish stress by salt secretion also ultrafiltration and ion appropriation. The plants have development of complex, physiological and anatomical adaptations allowing survival in their high stress habitat. The mangrove should restrain with aeration effect of sun, storm, osmotic disproportion, high salinity, brackish oxygen lacking and water- logged soils. Although, the reaction of adaptations the majority obvious attribute be succulent vegetation with increase mesophyll area, broad cuticle and wax deposition on the epidermis. The anatomical distinctiveness are the foundation designed for their physiological alteration to soaring salt condition.
Źródło:
World Scientific News; 2019, 129; 161-179
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Frontiers of Nanofiltration, Ultrafiltration and the future of global water shortage - a deep and visionary comprehension
Autorzy:
Palit, S.
Powiązania:
https://bibliotekanauki.pl/articles/412025.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
vision
nanofiltration
ultrafiltration
water
sustainability
environment
Opis:
The world of environmental engineering science is moving briskly and steadfastly in a newer vision and a newer age ahead in the civilisation’s progress. Global water shortage has become a primordial issue in present day human civilization. Environmental regulations and ecological restrictions has to be reassessed and rejudged at this critical juncture of history and time. In a similar vein the importance of membrane science and the applicability of environmental engineering techniques stands in the midst of immense optimism and scientific vision. Analytically, membrane separation science will bring environmental engineering science to the newer vision of zero discharge norms. Zero discharge norms and environmental engineering paradigm has an umbilical cord which has a decisive effect on ecological balance. The primordial and the decisive factor in global water shortage is the issue of ground water contamination and its subsequent remediation. Nanofiltration, ultrafiltration and other membrane separation processes in today’s scientific world and scientific vision stands in the midst of inimitable hope and optimism.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 19, 2; 120-131
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Use of Membrane Technologies of the CWTP to Obtain Quality Drinking Water
Autorzy:
Yelemanova, Aliya
Aliyarova, Madina
Begimbetova, Ainur
Jangaskina, Alina
Temirbekova, Marzhan
Powiązania:
https://bibliotekanauki.pl/articles/1955477.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
drinking water
ultrafiltration
nanofiltration
ultraviolet disinfection
Opis:
The purpose of the study is a scientific and theoretical substantiation of the energy characteristics of ultra and nano filtration, which directly depend on the quality of the source water, to ensure reliable and uninterrupted operation of a combined water treatment plant (CWTP), to obtain high-quality drinking water in water supply systems intended for settlements and industrial facilities. The developed method of combined operation of a water treatment plant is based on membrane technology, the efficiency of which directly depends on the preliminary improvement of the quality of purified low-mineralized water using an energy-efficient membrane, post-treatment and subsequent disinfection. Indicators of the quality of treated water that meet regulatory requirements and indicators of improving the energy efficiency of the water treatment plant have been investigated and calculated on the basis of experimental data. The results of studies on low-mineralized water made it possible to obtain TDS (Total dissolved solids) with a total residual concentration of hardness and chlorides in the range of 0.77 mg/dm3 without any problems. The proposed combined water treatment plant method is a priority among fundamental and applied works in the field of water treatment, it is intended for the purification of natural waters under conditions of increased anthropogenic loads on natural water sources.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 103-110
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The application of ultrafiltration for separation of glycerol solution fermented by bacteria
Autorzy:
Tomczak, W.
Gryta, M.
Powiązania:
https://bibliotekanauki.pl/articles/779520.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ultrafiltration
fouling
ceramic membrane
glycerol fermentation
Opis:
A biotechnological synthesis generated a fermentation broth containing the dissociated forms of organic compounds and residual mineral salts. An effective method of selective removal of the ionic species and organic compounds from solutions comprises nanofiltration and reverse osmosis. Ultrafiltration (UF) was used in this work as a pre-treatment method for the preparation of feed for these processes. The UF study was carried out with a real broth, which was obtained using Citrobacter freundii bacteria for the fermentation of glycerol solutions, resulting in the UF permeate with turbidity below 0.1 NTU. However, a significant decline of the permeate flux was observed during the UF process. The influence of the transmembrane pressure on the fouling intensity of used ceramic membranes was investigated. A periodical membrane cleaning was carried out by rinsing with water and a 1 wt % solution of sodium hydroxide. The applied cleaning procedures permitted to restore the initial permeate flux.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 3; 115-120
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dye removal using keggin polyoxometalates assisted ultrafi ltration: characterization and UV visible study
Autorzy:
Kahloul, Malak
Chekir, Jalila
Hafiane, Amor
Powiązania:
https://bibliotekanauki.pl/articles/205295.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ultrafiltration
dye removal
complexation
polyoxometalates
permeate flux
Opis:
To improve dye retention, there is a concurrent interest in the development and optimization of an alternative and promising method for the dye recovery in aqueous solutions. In this regard, considerable attention was paid to the polyoxometalates (POMs) assisted ultrafiltration (POMAUF). The aim of the present study is to eliminate toluidine blue (TB) dye by ultrafiltration membrane using keggin polyoxometalates (POMs) as complexing agents. In the first step, the keggin polyoxometalates K3[PW12O40]∙6H2O (PW12) and K7 [PW11O39]∙14H2O (PW11) were prepared. Then, the obtained powders were characterized by X-ray diffraction and infrared spectroscopies. Afterwards, the removal of toluidine blue (TB) using polyoxometalates assisted ultrafiltration (POMAUF) was studied. Factors affecting the retention of dye and permeate flux such as transmembrane pressure, operating time, polyoxometalates concentration, ionic strength, surfactant and pH were investigated. All results of both compounds have been presented and discussed. The results reveal that the addition of POMs leads to an increase in dye retention from 11 to 95% for the PW12 and to 98% for the PW11. The results of this work have thus suggested the promising enhancement of ultrafiltration membrane selectivity for the dye removal using new complexing agents such as POMs in place of polyelectrolytes and surfactants.
Źródło:
Archives of Environmental Protection; 2019, 45, 4; 30-39
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Challenges and development directions of membrane bioreactors operated on passenger ships in international shipping
Autorzy:
Trzciński, Karol
Zielińska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/1830650.pdf
Data publikacji:
2021-09-29
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
ultrafiltration
gray wastewater
black wastewater
water reuse
Opis:
In membrane bioreactor (MBR) technology, the activated sludge method is integrated with the separation of solid particles by ultrafiltration (UF). The technology ensures a high effluent quality, a shortened hydraulic retention time and a long sludge age that promotes slowly growing microorganisms and low sludge production. These advantages and the modular construction mean that MBRs have started to treat wastewater generated on passenger ships to adjust the treatment systems to the International Convention for the Prevention of Pollution from Ships. The aim of this paper is to present operational aspects of MBRs treating wastewater generated on ships, which are different from the aspects of MBR operation on land. This paper describes the consequences of separate treatment of gray wastewater (from showers, washing machines and kitchens) and black wastewater (from toilets), and of discontinuous flow of wastewater resulting from very high variability in the passenger numer and the use of the MBR as a ship ballast element. The possibility of introducing a water recovery technology using the existing infrastructure on passenger ships as well as the hybrid UF/reverse osmosis technology is presented. The findings demonstrated that gray effluent may be reused for marine main engine cooling jackets of high and low temperature, ship boilers or ship laundry.
Źródło:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2021, 17; 42-47
1730-2366
2083-8484
Pojawia się w:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of Membrane Techniques in Swimming Pool Water Treatment
Autorzy:
Łaskawiec, E.
Madej, M.
Dudziak, M.
Wyczarska-Kokot, J.
Powiązania:
https://bibliotekanauki.pl/articles/952481.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
pressure membrane processes
ultrafiltration
nanofiltration
toxicological assessment
Opis:
The paper has determined the suitability of membrane processes (UF ultrafiltration, UF, and nanofiltration, NF) for the purification of waste streams, so-called backwash water, obtained from washing filtration beds in a swimming pool water system. The backwash water samples were taken from the circuits located in two indoor facilities with a different purpose of the basins. Moreover, the samples were characterized by varying quality, as described by selected physicochemical parameters (such as turbidity and ultraviolet absorbance UV254). Commercial membranes were used for the tests. The transport-separation properties of the membranes were determined based on the volumetric flux of the permeate. In addition, backwash water samples before and after the membrane process were subjected to toxicological assessment using the Microtox® screening test. The performed processes contributed to a significant reduction in turbidity and the value of UV254 ultraviolet absorbance, both in the ultrafiltration and nanofiltration processes. Whereas, significant differences in transport properties were noted within individual processes. A great influence of backwash water quality, including physicochemical parameters, on the course and results of the membrane filtration processes was demonstrated. In all of the nanofiltration cycles carried out, the removal of the toxic properties of the backwash water with respect to bacteria in the Microtox® test was found. Nevertheless, samples with high values of resultant physicochemical parameters after the ultrafiltration process were still characterized by high toxicity. Pressure membrane processes show high effectiveness in the removal of contaminants from backwash water. However, it is necessary to introduce supporting processes aimed at reducing membrane pore blocking by deposits and organic compounds, and in the case of ultrafiltration, assuring the safety of the purified stream in terms of the toxicological effect.
Źródło:
Journal of Ecological Engineering; 2017, 18, 4; 130-136
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Możliwość regeneracji zużytych solanek z wykorzystaniem ultrafiltracji
Possibility of used brines regeneration by way of ultrafiltration
Autorzy:
Kołodziej, K.
Dutkiewicz, D.
Powiązania:
https://bibliotekanauki.pl/articles/227516.pdf
Data publikacji:
2010
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
ultrafiltracja
solanka
przemysł rybny
ultrafiltration
liquid fish
Opis:
W artykule przedstawiono możliwości redukcji zawartości chlorków w ściekach przemysłu rybnego, poprzez regeneracje zużytych solanek z wykorzystaniem ultrafiltracji. Przedstawiono wyniki badań mikrobiologicznych potwierdzających skuteczność opisanej metody oczyszczania solanek
The paper presents possibility of reduction of chlorides in liquid fish processing wastes by way of ultrafiltration. The results of microbiological tests of ultrafiltration effectiveness are presented.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2010, 1; 9-11
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy-saving method for obtaining protein from potato juice
Energooszczędna metoda pozyskiwania białka z soku ziemniaczanego
Autorzy:
Boruch, M.
Makowski, J.
Wachowicz, M.
Dubla, W.
Powiązania:
https://bibliotekanauki.pl/articles/1401968.pdf
Data publikacji:
1989
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
potato
potato juice
protein
coagulation
ultrafiltration
energy consumption
Opis:
Protein was isolated from potato juice by acid-thermal coagulation and by ultrafiltration. The purity of the obtained protein preparations and energy consumption in the two methods were compared. It was founed that protein obtained by a concentration of juice by the ultrafiltration method was of higher quality and for its production more than twice less energy was required.
Z soku ziemniaczanego uzyskiwano produkt białkowy metodą kwasowo-termicznej koagulacji oraz metodą membranową z zastosowaniem ultrafiltracji. Udział azotu ogólnego w przeliczeniu na suchą substancję produktu białkowego otrzymanego metodą kwasowo-termiczną wynosił 9,9%, a metodą zatężania membranowego 11,9%. W obu metodach stosowano ten sam sok w ilości 3 dm³ i uzyskano w produkcie białkowym zbliżoną ilość białka surowego tj. po ok. 36 g. Przy założeniu jednakowego stężenia koncentratu białkowego przeznaczonego do suszenia ilości energii zużytej w procesie otrzymania 1 kg produktu białkowego w obu metodach znacznie się różniła; w metodzie kwasowo-termicznej wynosiła 91,6 MJ a w metodzie zatężania membranowego 37,5 MJ. Zastosowanie ultrafiltracji do wydzielania białka z soku zamiast koagulacji kwasowo-termicznej pozwoli uniknąć bardzo energochłonnych i trudnych operacji technologicznych za pomocą urządzeń wyłącznie produkcji krajowej.
Źródło:
Acta Alimentaria Polonica; 1989, 15(39), 3; 253-260
0137-1495
Pojawia się w:
Acta Alimentaria Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania rozdzielania brzeczek z bakteryjnej fermentacji glicerolu w układzie ultrafiltracja-nanofiltracja
Separation of glycerol solutions from bacterial fermentation in ultrafiltration-nanofiltration processes
Autorzy:
Gryta, M.
Tomczak, W.
Bastrzyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/2072386.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
ultrafiltracja
nanofiltracja
glicerol
fermentacja
ultrafiltration
nanofiltration
glycerol
fermentation
Opis:
Przeprowadzono badania separacji brzeczek fermentacyjnych w układzie ultrafiltracja-nanofiltracja. Do fermentacji glicerolu zastosowano bakterie Lactobacillus casei. W procesie UF uzyskano filtrat o mętności poniżej 0,1 NTU. Proces NF pozwolił usunąć z brzeczek większość obecnych w nich soli. Zastosowanie membran NF270 i NF90 umożliwiło uzyskać także częściowy rozdział związków organicznych powstających podczas fermentacji.
The separation of fermentation broths by ultrafiltration and nanofiltration integrated processes was investigated. The glycerol fermentation was carried out using Lactobacillus casei bacteria. During the UF process the solutions were clarified obtaining turbidity of 0.1 NTU. The NF process allowed one to remove a majority of salts present in broth. The application of NF270 and NF90 membranes enabled one to obtain a partial separation of organic compounds formed during the fermentation process.
Źródło:
Inżynieria i Aparatura Chemiczna; 2013, 5; 423--424
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ultrafiltration membranes from polysulfone and sulfonated polysulfone in metal ions dialysis enhanced by polyelectrolyte
Autorzy:
Poźniak, G.
Powiązania:
https://bibliotekanauki.pl/articles/346903.pdf
Data publikacji:
2006
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej
Tematy:
polysulfone
ultrafiltration membrane
metal dialysis
polymer-metal complexes
Opis:
The dialysis of metal ions including Mg(II), Ni(II) and Zn(II) through ultrafiltration membranes made of polysulfone and sulfonated polysulfone was enhanced by sodium salt of poly(acrylic acid) diluted in the receiving compartment. In experiments, concentration of Mg(II), Ni(II) and Zn(II) in the feed solution was equal to 10-3 mol/dm3, concentration of polymer in the receiving solution was equal to 10-2 mol/dm3, and pH = 9. In the presence of complexing polymer, concentration of all metal ions in the receiving solution is higher than 50% for the polysulfone membrane and increases to almost 100% for the sulfonated polysulfone membrane. This effect is due to a cation-exchange property of the sulfonated polysulfone membrane.
Źródło:
Ars Separatoria Acta; 2006, 4; 50-56
1731-6340
Pojawia się w:
Ars Separatoria Acta
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ultrafiltration treatment of wastewater contained heavy metals complexed with palygorskite
Autorzy:
Ren, Jun
Cao, Tiany
Yang, Xin
Tao, Ling
Powiązania:
https://bibliotekanauki.pl/articles/778555.pdf
Data publikacji:
2020
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
palygorskite
heavy metals
ultrafiltration
complexation
pH
ionic strength
Opis:
Palygorskite was applied in complexation-ultrafiltration treatment of heavy metals in wastewater under different pH and ionic strength. The results indicated that the rejection of heavy metals increased significantly with pH value, and decreased slightly with an increase of ionic strength of Na+ and Cl-. A certain concentration of NaCl significantly reduced the rejection rate of Cu2+. The rejection of Cu2+, Zn2+ and Cd2+ could reach over 86.8%, 93.6% and 93.7% at pH of 7 and 0.1 mol/L NaCl. The rejection of heavy metals was severely affected by low molecular weight competing complexing agents and the effect of sodium tartrate was greater than triethanolamine. In the presence of sodium tartrate, the rejection of Cu2+, Zn2+ and Cd2+ could arrive over 81.4%, 57.6% and 60.5% at pH of 7 in 20 min. Palygorskite was offered a potential complexing agent for the removal of heavy metals in wastewater at the complexation-ultrafiltration process.
Źródło:
Polish Journal of Chemical Technology; 2020, 22, 4; 1-9
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Mineral Salt on Reactive Dye Removal from Aqueous Solutions by Ultrafiltration
Autorzy:
Ahmed, Arif Eftekhar
Majewska-Nowak, Katarzyna
Grzegorzek, Martyna
Szymanek, Igor
Powiązania:
https://bibliotekanauki.pl/articles/2202134.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
reactive dye
ultrafiltration
dye rejection
flux
mineral salts
Opis:
The effect of mineral salt on the reactive dye removal was evaluated by using flat ultrafiltration (UF) membranes made of polyethersulfone (PES) and regenerated cellulose (C). Five reactive dyes varied in molecular weight (Reactive Orange 16, Remazol Brilliant Blue R, Reactive Orange 20, Reactive Black 5, Reactive Read 120) were used in the UF experiments. The applied membranes were characterized by the cut-off value equal to 10 kDa. The ultrafiltration process was performed in a dead-end mode under the transmembrane pressure of 0.2 MPa. Dye concentration in model solutions was equal to 100 mg/dm3. Two various mineral salts (NaCl and Na2SO4) were chosen to simulate the composition of dye-house baths. The concentration of monovalent and divalent salt in model dye solutions amounted to 1–2 g/dm3. Transport and separation properties of the UF membranes towards reactive dyes and mineral salts were evaluated. It was found that the separation efficiency of all tested dyes was dependent on the mineral salt presence. The effect of mineral salt on dye retention was more pronounced for membrane made of regenerated cellulose (C) than for polyethersulfone membrane (PES). In the case of the C membrane the dye retention coefficients varied in the wide range – from 55 to 83%, whereas for PES membrane the degree of dye separation was less diverse and amounted to 81–96%. The presence of mineral salt in water and dye solutions generally worsen the membrane permeability due to osmotic pressure increase as well as enhancing adsorptive fouling of dye particles in membrane matrix.
Źródło:
Journal of Ecological Engineering; 2022, 23, 10; 239--247
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical composition and properties of spray-dried sugar beet concentrate obtained after ultrafiltration of diffusion juice
Autorzy:
Regiec, P.
Kita, A.
Boruczkowska, H.
Drożdż, W.
Powiązania:
https://bibliotekanauki.pl/articles/779047.pdf
Data publikacji:
2015
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ceramic membrane
ultrafiltration
diffusion juice
concentrate
spray drying
Opis:
Ultrafiltration of diffusion juice is a method that can reduce environmental pollution during the production of sugar. A by-product (concentrate) of ultrafiltration contains a large amount of sucrose, but due to its properties, it is difficult to manage. The aim of this study was to determine the effects of the temperature used during drying of diffusion juice concentrates on the content of certain components and characteristics of resultant preparations. Diffusion juice obtained from one of the Polish sugar plants was subjected to ultrafiltration and the obtained concentrates were dried in a spray dryer. In the dried samples, the following parameters were analyzed: dry mass, sucrose, total ash, protein, crude fiber and color. It has been declared that the degree of concentration and drying temperature influenced the chemical composition and the properties of the dehydrated diffusion juice concentrates. An increase in drying temperature was accompanied by the increased content of dry mass, protein, ash and fiber content in the preparations. The greater the degree of juice concentration, the greater was the content of dry mass, ash, and fiber. Inversely, the greater the degree of juice concentration, the lower the content of sucrose. The brightest color of the dehydrated product was observed at the drying temperature of 200°C. Spray-drying may be used for waste management after the diffusion juice membrane filtration, and the resultant preparations might be used in the production of feedstuff or food industry in general e.g. as sucrose source, in fermentation processes or in microorganisms propagation.
Źródło:
Polish Journal of Chemical Technology; 2015, 17, 1; 134-137
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The chemical cleaning of ceramic membrane used in UF
Autorzy:
Tomaszewska, M.
Białończyk, L.
Powiązania:
https://bibliotekanauki.pl/articles/779109.pdf
Data publikacji:
2012
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ultrafiltration
ceramic membrane
whey; broth
fouling
chemical cleaning
Opis:
Ultrafiltration (UF) is one of the membrane processes which is mostly used in the dairy industry for the separation and concentration of whey components or fermentation broth. Fouling of UF membranes in the food industry is primarily due to a deposition of microorganisms, proteins, fats and minerals on the membrane surface. Thus, cleaning of the membranes is an essential step of UF separation. The results from investigations of chemical cleaning of a ceramic UF membrane fouled by precipitation of whey components and yeast contained in the fermentation broth are presented. The effect of cleaning procedure on the degree of permeability restoration by the fouled membrane was studied. The results demonstrated that a combination of sodium hydroxide, phosphoric acid and sodium hypochlorite as a disinfectant could be successfully used to achieve an optimum recovery of the membrane properties.
Źródło:
Polish Journal of Chemical Technology; 2012, 14, 3; 105-109
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
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