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Wyszukujesz frazę "Kowalski, Z M" wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Obtaining protein hydrolysates with chemical and enzymatic methods
Autorzy:
Kowalski, Z.
Makara, A.
Banach, M.
Powiązania:
https://bibliotekanauki.pl/articles/779318.pdf
Data publikacji:
2011
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
odpady mięsne
hydrolizat białkowy
metoda chemiczna
metoda enzymatyczna
meat waste
protein hydrolysate
chemical method
enzymatic method
Opis:
The goal of our research was to work up a method of hydrolisates protein production using as raw material fresh pork meat-bone tissue after dismantling the process of half carcasses. Actually this raw material was practically all utilized as waste. The results of laboratory research and an industrial test allowed to state that is possible to produce hydrolysates containing 8 - 10% of proteins, and the most advantageous parameters of the chemical process are: the reaction time ˜105 min., temperature 120°C, pressure 3.0 bars. With the use of enzymes (Protamex and Flavourzyme), it is possible to obtain a non-gelling protein hydrolysate with a high degree of clarity and light cream colour. The best results were achieved with the following parameters: the meat-bone feedstock to the water ratio from 1:1 to 1:2, the temperature of 40 - 45°C, the time of the process 3 h, pH ˜6.
Źródło:
Polish Journal of Chemical Technology; 2011, 13, 1; 41-46
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A chemical method of the production of "heavy" sodium tripolyphosphate with the high content of Form I or Form II
Autorzy:
Banach, M.
Kowalski, Z.
Wzorek, Z.
Gorazda, K.
Powiązania:
https://bibliotekanauki.pl/articles/779185.pdf
Data publikacji:
2009
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
tripolifosforan sodu
gęstość nasypowa
sodium tripolyphosphate
high bulk density
granular product
Opis:
Sodium tripolyphosphate STPP is used in laundry detergent as a detergent "builder". The paper presents the chemical method of obtaining "heavy", i.e. with higher bulk density granulated sodium tripolyphosphate. The bulk density of sodium tripolyphosphate was increased by preparing a mixture of the dried sodium phosphates, the recycled subgrain of STPP and water in specific proportions and calcining this mixture for 1 hour at 400°C and 550°C (to obtain a proper STPP form) in the chamber kiln. This method allows producing the granular sodium tripolyphosphate with high bulk density (1.04-1.07 kg/dm3) and a high content of Form I or Form II, respectively.
Źródło:
Polish Journal of Chemical Technology; 2009, 11, 2; 13-20
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of dry mass content in pig liquid manure on its treatment with a filtration method
Autorzy:
Kowalski, Z.
Makara, A.
Marszałek, M.
Hoffmann, J.
Hoffmann, K
Powiązania:
https://bibliotekanauki.pl/articles/778774.pdf
Data publikacji:
2014
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
pig manure treatment
filtration method
dry mass
filtrate
Opis:
The present study examines the impacts of dry mass content in pig liquid manure on its treatment with a filtration method. Samples of liquid manure with variable dry mass content were subjected to treatment using phosphoric acid, sulfuric acid, lime milk and superphosphate, as well as to thermal treatment, while in the last phase of pressure filtration. Increased dilution of the manure resulted in a reduced raw materials consumption ratio and improved filtration process efficiency, which ranged from 408 to 3765 kg/m2/h. The highest filtration efficiency was achieved using manure containing 3% dry mass, while the lowest efficiency was observed in manure at 10% dry mass. The increase in liquid manure dilution also reduced chemical oxygen demand in the filtrate, which ranged from 15 062 to 3656 mg/l. An appropriate manure dilution level, under the constant parameters of the treatment process, reduced phosphorus content in the filtrate to < 10 mg/kg Chile simultaneously enriching the post-filtration sediment with this precious fertilizing component.
Źródło:
Polish Journal of Chemical Technology; 2014, 16, 3; 106-110
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dry single-stage method of sodium tripolyphosphate production – technological and economic assessment
Autorzy:
Gorazda, K.
Kowalski, Z.
Kijkowska, R.
Pawłowska-Kozińska, D.
Wzorek, Z.
Banach, M.
Nowak, A. K.
Powiązania:
https://bibliotekanauki.pl/articles/778549.pdf
Data publikacji:
2014
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
sodium tripolyphosphate production
dry method
classic method
technical and economic analysis
Opis:
The study presents a technology of sodium tripolyphosphate (STPP) production with the use of a dry, single-stage method. The reacting substrates (concentrated wet-process phosphoric acid - WPPA and solid Na2CO3 ) are mixed with a recycled final product (STPP) in a mixer, then a „quasi-dry” mixture is calcined in a rotary kiln. Thanks to that, some stages of a classic method of STPP production are eliminated: one of the two-stage neutralization of the phosphoric acid with sodium carbonate at temperature ~80°C, filtration of the neutralised solution and its evaporation, as well as the stage of drying a solution of mono- and di-sodium orthophosphate in a spray dryer. According to the presented technical and economical analysis, the costs of STPP production using a single-stage dry method can be 10% lower compared to the classic method.
Źródło:
Polish Journal of Chemical Technology; 2014, 16, 1; 41-44
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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