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    Wyświetlanie 1-7 z 7
    Tytuł:
    Manufacturing of phosphoric acid from hydroxyapatite, contained in the ashes of the incinerated meat-bone wastes
    Autorzy:
    Krupa-Żuczek, K.
    Kowalski, Z.
    Wzorek, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/779039.pdf
    Data publikacji:
    2008
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    odpady mięsne
    hydroksyapatyt
    kwas fosforowy
    meat waste
    hydroxyapatite
    phosphoric acid
    Opis:
    The results of the investigations concerning phosphoric acid manufacturing, by the extraction method, from the ashes containing hydroxyapatite, obtained through the thermal treatment of bone sludge have been presented. The incinerated bone sludge with ~ 16% P content and the minimal amount of impurities can be an alternative source for phosphoric acid production. The process consists in two stages. In the 1st stage, reaction of hydroxyapatite with phosphoric acid resulting in monocalcium phosphate formation in the solution obtained is carried out. The tests revealed that overall hydroxyapatite dissolution in phosphoric acid takes place when the concentration is 37% H3PO4. In the 2nd stage monocalcium phosphate is converted into calcium sulphate using concentrated sulphuric acid at the recommended temperature of 95°C. The principles of the technological idea of the process of phosphoric acid manufacturing from HA-containing ashes, obtained by bone wastes incineration, as well as a preliminary economic analysis for the production of 10 000 t/year of food-grade phosphoric acid have been developed.
    Źródło:
    Polish Journal of Chemical Technology; 2008, 10, 3; 13-20
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A model of the meat waste management
    Autorzy:
    Kowalski, Z.
    Krupa-Żuczek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/778691.pdf
    Data publikacji:
    2007
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    odpady mięsne
    czystsza produkcja
    zarządzanie odpadami
    meat waste
    cleaner production
    waste management
    model solution
    Opis:
    The European Union produces about 18 million tons of waste from meat industry per year. The real danger of the BSE disease caused a necessity of looking for a new alternative solution of meat waste management. The proposed solution of meat industry waste management would create meat production waste free with the use of the cleaner production method. Cleaner production includes: pollution prevention, reduction of the source, recovery of materials and energy (for example: the recovery of blood plasma and protein hydrolisate from bone sludge) and their recycling. The thermal processing of meat industrial waste (bone sludge, meat-bone meal and odour) is anticipated, too. Ashes from meat calcining have the phosphorus content close to its concentration, of the typical phosphoric raw materials. That confirmed the possibility of using such ashes as the substitute of phosphoric raw materials. The target model of waste free meat waste management included the results of the implemented and current research.
    Źródło:
    Polish Journal of Chemical Technology; 2007, 9, 4; 91-97
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Survival of BPV and Aujeszkys disease viruses in meat wastes subjected to different sanitization processes
    Autorzy:
    Paluszak, Z.
    Lipowski, A.
    Ligocka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/30706.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    survival
    bovine parvovirus
    parvovirus
    Aujeszky's disease virus
    meat waste
    sanitization process
    composting
    fermentation
    anaerobic fermentation
    virus
    meat fragment
    bone
    waste treatment
    temperature
    pathogen
    Opis:
    The effect of composting and anaerobic fermentations under meso- and thermophylic conditions (37° and 55℃) on the survival of bovine parvovirus (BPV) and Aujeszky’s disease viruse (ADV) in meat wastes has been examined in this study. Viruses were adsorbed on filters and introduced into carriers which were made of meat fragments of different sizes and bones or in the form of suspension they were introduced into the biomass in the course of processes of waste treatment. Carriers were removed at appropriate time intervals and virus titres were determined. The thermoresistant parvovirus survived for the longest time during mesophylic fermentation (almost 70 days), slightly shorter during composting (7-9.5 days depending on the type of carrier) and for the shortest time – at 55℃ (46-76 hours). Its inactivation rate was the fastest in a suspension, slower in meat and bone carriers. ADV inactivation proceeded considerably faster, as compared with BPV. Its active particles were not detected as early as in the 30th minute of thermophylic fermentation, the 6th hour of mesophylic fermentation and at the first sampling time during composting (at the 72nd hour). Total survival time ranged from 50 min to 13 hours. All the tested technologies enabled the effective elimination of ADV and on average twofold decrease in BPV titre. From the study conducted it follows that of both viruses, the BPV should be applied for validation processes of methods used in meat waste processing, particularly if this refers to methods where higher temperature is the factor inactivating pathogens.
    Źródło:
    Polish Journal of Veterinary Sciences; 2010, 13, 4
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    The analysis of the mass and morphological composition of waste produced by the meat industry
    Analiza masy i składu odpadów powstających w przemyśle mięsnym
    Autorzy:
    Malczewski, K.
    Malinowski, M.
    Słabosz, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/337657.pdf
    Data publikacji:
    2017
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
    Tematy:
    meat industry
    waste
    Polska
    przemysł mięsny
    odpady
    Polska
    Opis:
    In 2009, meat preserves were produced by approximately 2700 plants in Poland. Used in the process of production and processing of meat, raw materials are not fully utilized and this results in the formation of by-products in the form of remnants of unused raw materials and different types of waste (which is the consequence of the operation of machinery, buildings and devices). The ultimate purpose of the study was to analyze the mass and morphological composition of waste generated in the process of meat production and processing in the years 2011-2013. The analysis was carried out for the macroregion of Southern Poland (the Śląskie, the Świętokrzyskie, the Małopolskie and the Podkarpackie provinces). For the analyzed period of time information about the waste from around 300 companies involved in the meat industry which submitted a report to the Marshal's Office was obtained. These companies generated on average 586 ± 211 Mg of waste per year. 1 Mg of produced meat generates over 290 kg of waste in the plants located in the analyzed area. The largest share of all generated waste comprises a group classified according to the Waste Catalogue as 02 02. Among the waste, the biggest, well over 40%, share is created by animal tissue waste.
    W 2009 roku w Polsce przetwory mięsne produkowano w około 2700 zakładów. Stosowane w procesach produkcji i przetwórstwa mięsa surowce nie są w pełni wykorzystywane, co skutkuje powstawaniem produktów ubocznych w postaci resztek niezużytych surowców oraz różnego rodzaju odpadów (będących konsekwencją eksploatacji maszyn, budynków i urządzeń). Głównym celem pracy była analiza masy i składu morfologicznego odpadów wytwarzanych w procesach produkcji i przetwórstwa mięsa w latach 2011-2013. Analizę wykonano dla makroregionu Polski Południowej (województw: śląskiego, świętokrzyskiego, małopolskiego i podkarpackiego). Dla analizowanego przedziału czasu uzyskano informacje o odpadach z około 300 firm działających w branży mięsnej, które złożyły sprawozdanie do Urzędu Marszałkowskiego. Firmy te generowały średnio 586 ± 211 Mg odpadów w ciągu roku. W zakładach zlokalizowanych na analizowanym obszarze na 1 Mg produkowanego mięsa generowanych jest ponad 290 kg odpadów. Największą część wszystkich generowanych odpadów stanowi grupa klasyfikowana zgodnie z Katalogiem Odpadów jako 02 02. Wśród tych odpadów największy, ponad 40% udziału stanowi odpadowa tkanka zwierzęca.
    Źródło:
    Journal of Research and Applications in Agricultural Engineering; 2017, 62, 1; 122-126
    1642-686X
    2719-423X
    Pojawia się w:
    Journal of Research and Applications in Agricultural Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polycyclic Aromatic Hydrocarbon Accumulation in Meats Singed with Kerosene and Waste Tyres: A Case for Public Health Concern in Nigeria
    Autorzy:
    Okareh, Oladapo T.
    Oshinloye, Oluwatoyin A.
    Abiodun, Dada
    Powiązania:
    https://bibliotekanauki.pl/articles/1840776.pdf
    Data publikacji:
    2021
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Singeing torch
    Meat
    Waste Tyres
    Kerosene
    Poly Aromatic Hydrocarbon (PAH)
    Opis:
    Singeing is a common post slaughtering process of livestock and this has been associated with the introduction of high level of Polycyclic Aromatic Hydrocarbon (PAH) in the meats. There is dearth of information on alternative singeing technology for safe meat. Therefore, this study is aimed at proffering an alternative method for singeing livestock carcass as a post-slaughtering process to reduce accumulation of PAH in meat. An experimental study, involving the use of a singeing device (singeing torch) sourced locally was conducted. Singeing was carried out on a sacrificed goat using conventional methods and the Singeing Torch (ST). Five grams of meat samples singed with kerosene, tyres and the ST were collected from two abattoirs and observed for physical qualities. The physicochemical properties such as pH and PAH were determined using standard procedures. Results were compared with International Agency for Research in Cancer guidelines. Data were analyzed using descriptive statistics and ANOVA at 5% level of significance. Bright appearances with red coloration for ST singed meat while black patches and dull appearances were observed on meat singed with kerosene and tyres respectively. ST singed meat showed a better olfactory quality, a more neutral PH value and PAH of 7.3 and 3.30 (n/ng), while kerosene and tyre singed meat showed 6.8 pH value, 4.20 (n/ng) and 6.61 (n/ng) respectively with mean of 0.194±0.56, 0.248±0.94 and 0.389±1.21 respectively. The principal PAH compounds in ST meat identified were 1-Methylnaphthalene, 2-Methylnaphthalene, Acenaphthene, Pyrene and Benz(a)anthracene. This study indicates that meat singed with ST had lower PAH contents and better physical quality. The use of device and method that generates no chemical contaminants such as the ST should be encouraged for the singeing process of livestock carcasses as a strategy for the control of chemical contaminants of meat.
    Źródło:
    World News of Natural Sciences; 2021, 38; 49-59
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phosphorus recovery from waste - methods review
    Autorzy:
    Wzorek, Z.
    Gorazda, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/779805.pdf
    Data publikacji:
    2007
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    odzysk fosforu
    ścieki
    pomioty
    osad ściekowy
    mączka mięsno-kostna
    phosphorus recovery
    waste
    manure
    sewage sludge
    meat-bone meal
    Opis:
    According to sustainable development principles, searching for alternative phosphorus sources, especially possible ways of its recycling from waste, should be treated as a preferential problem of the phosphorus industry. The ways admitted as most important are: - phosphorus recovery from municipal and industrial sewage and from sewage sludge, - utilization of phosphorus from manure, - management of waste from meat industry. The forecasts elaborated at the end of the last century, indicate that over 50% of the world phosphorus resources in use today will be depleted during the next 60 - 70 years. That fact contributes to increase of market prices of phosphorus products. This work presents possible directions for the recovery and management of sewage sludge, meat meal and manure as a phosphorus source for chemical industry.
    Źródło:
    Polish Journal of Chemical Technology; 2007, 9, 2; 57-60
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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