Celem pracy było określenie wpływu zmieniającego się otoczenia gospodarczego i społecznego na war... more Celem pracy było określenie wpływu zmieniającego się otoczenia gospodarczego i społecznego na warunki działalności gospodarczej małego zakładu piekarniczo-cukierniczego. W artykule przedstawiono analizę strategiczną przedsiębiorstwa na podstawie wskaźników rachunkowo-zarządczych oraz analizę procesów technologicznych wybranych produktów. Ocenę wskaźnikową wykonano z zastosowaniem macierzy BCG. Skupiono się na najbardziej kosztochłonnych procesach i operacjach jednostkowych produkcji. Wprowadzono zmianę techniczno-technologiczną, tj. zastosowano komorę chłodniczogarowniczą. Zmiana procesu przygotowania półproduktów wpłynęła na optymalizację procesową i zmianę systemu pracy. Następnie sprawdzono stan mikrobiologiczny wybranych produktów piekarniczych (bułek: kajzerka, wieloziarnista, drożdżowa) po wprowadzeniu zmian technologicznych. Mikroflora bułek była zgodna z przyjętymi normami, nie stwierdzono niepożądanej mikroflory mogącej zanieczyszczać pieczywo, zatem wprowadzone zmiany technologiczne nie miały wpływu na stan mikrobiologiczny bułek. Stwierdzono, że zaproponowane zmiany technologiczne mogą mieć korzystny wpływ na wynik operacyjny i główne wskaźniki ekonomiczne w małym zakładzie piekarniczo-cukierniczym.
Zywnosc Nauka Technologia Jakosc/Food Science Technology Quality, 2020
Celem pracy było określenie wpływu zmieniającego się otoczenia gospodarczego i społecznego na war... more Celem pracy było określenie wpływu zmieniającego się otoczenia gospodarczego i społecznego na warunki działalności gospodarczej małego zakładu piekarniczo-cukierniczego. W artykule przedstawiono analizę strategiczną przedsiębiorstwa na podstawie wskaźników rachunkowo-zarządczych oraz analizę procesów technologicznych wybranych produktów. Ocenę wskaźnikową wykonano z zastosowaniem macierzy BCG. Skupiono się na najbardziej kosztochłonnych procesach i operacjach jednostkowych produkcji. Wprowadzono zmianę techniczno-technologiczną, tj. zastosowano komorę chłodniczo-garowniczą. Zmiana procesu przygotowania półproduktów wpłynęła na optymalizację procesową i zmianę systemu pracy. Następnie sprawdzono stan mikrobiologiczny wybranych produktów piekarniczych (bułek: kajzerka, wieloziarnista, drożdżowa) po wprowadzeniu zmian technologicznych. Mikroflora bułek była zgodna z przyjętymi normami, nie stwierdzono niepożądanej mikroflory mogącej zanieczyszczać pieczywo, zatem wprowadzone zmiany tec...
Water pollution is an immense environmental problem, and plant protection products are part of it... more Water pollution is an immense environmental problem, and plant protection products are part of it. The organophosphorus insecticides, chlorpyrifos as an example, were used for years, and their high concentration could negatively influence ecosystems. Some of the plants, such as macrophytes, were exposed to a variety of stress factors. To live on, the macrophytes developed an efficient antioxidative system consisting of enzymatic and non-enzymatic antioxidants. The remediation process of polluted water ecosystems caused by plant protection products in our climate zone can be intensified if it is provided by autochthonic macrophytes. The results of our studies are part of the research that allows optimizing the phytoremediation process without irreversible effect on investigated species. The influence of various concentrations of chlorpyrifos on the enzymatic system in Canadian waterweed (Elodea canadensis Michx.), needle spikerush (Eleocharis acicularis L.), and water mint (Mentha aq...
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Aims: The thermal plasma treatment is an effective method which can be used to convert hazardous ... more Aims: The thermal plasma treatment is an effective method which can be used to convert hazardous waste into less toxic or inert glassy products. The aim of this paper is to show the experimental use of a thermal plasma treatment process to transform the hospital incineration fly ash into glassy products (vitrificates) that can be stored on the land without harmful environmental effects or sintered for producing with some additives coloured tiles useful as construction materials. Scope: The aims were achieved by: (i) optimization of temperature and energy used adjusting the process to minimum cost and (ii) stabilization of vitrificates with different compositions of waste mixtures. The chemical stabilization of final products was examined by heavy metals leachability tests. Hardness measurements were done to verify the physical stabilization of vitrificates. Also, it has been tested if the reinforcement and coloration of raw material by various pigments as well as the chemical compounds affect the stability of the final products. Conclusion: It was seen that chemical composition of raw materials influenced the chemical and physical properties of the vitrificates and decided about their internal structures.
The paper presents the results of research on the vibrating motion of a laboratory screen with a ... more The paper presents the results of research on the vibrating motion of a laboratory screen with a rectilinear (segmental) trajectory of vibrations during its start-up and braking. The investigations were carried out on a modernized stand equipped with a system of two vibrating motors applied in newer solutions of industrial screens, which are mounted directly on the riddle. The tests were carried out for three different frequencies using three-axis acceleration sensors. The analysed parameter was the increase in the amplitude of vibrations in transient states compared to the amplitude during the stable operation of the device. The maximum multiplication of the vibration amplitude of the classic drive system during start-up was 9.7 (mm/mm) in the vertical direction and 5.7 (mm/mm) for the new system. During braking, the maximum multiplication of the vibration amplitude of the classic drive system was 6.9 (mm/mm) vertically, while for the drive system with vibration motors, it was 11.4...
Water pollution can be moved or limited by macrophytes in a phytoremediation process. The presenc... more Water pollution can be moved or limited by macrophytes in a phytoremediation process. The presence of insecticides in the plant life environment may affect physiological processes and contribute to the formation of secondary oxidative stress in plant tissues. To protect against oxidative stress, macrophytes have developed a system of mechanisms consisting of nonenzymatic and enzymatic antioxidants. The influence of various concentrations of chlorpyrifos on the nonenzymatic system in Canadian waterweed (Elodea canadensis Michx.), needle spikerush (Eleocharis acicularis) and water mint (Mentha aquatica L.) was studied. The differences in the value of the total concentration of polyphenols and flavonoids, as well as analysis of chlorophyll-a, chlorophyll-b, anthocyanin and carotenoid concentrations were determined in leaves. Research indicated a significant increase in the content of polyphenols and flavonoids in a solution with the highest concentration of chlorpyrifos while the oppos...
Many researchers who investigate the process of grinding and try to describe its kinetics use the... more Many researchers who investigate the process of grinding and try to describe its kinetics use the classical form of equations developed by Sedlatschek and Bass and their modified form presented by Austin. Some difficulty in applying the above mentioned models is caused by their complex form of notation, particularly when increasing the accuracy of analysis which induces a growing number of size grades into which the granular material is divided. At present, there are no models which would be characterized by a simple notation on the one hand, and would take into account the effect of numerous process parameters on grain size composition of a ground product on the other hand. This chapter presents results of investigations of grinding which covered the analysis of particle size distribution and statistical analysis using the theory of moments. The investigations are carried out in a laboratory mill 6 dm 3 in volume and 200 mm of inner diameter. Experiments are performed for four rock materials with significant differences in Mohs hardness numbers. During the experiments the mass and type of balls, the degree of mill filling with feed and rotations frequency of the mill are changed. Dependence of the concentration and asymmetry coefficients and mean grain size on different equipment and process parameters is presented in the form of mathematical relations.
Honey is one of the world's most valued natural food products. Characteristic, pleasant aroma... more Honey is one of the world's most valued natural food products. Characteristic, pleasant aroma, golden colour, sweet taste and healthpromoting properties cause a continuous increase of honey consumption in the European Union. The most wanted is regional honey. However, imported honey available on the market has often lower prices. The honey obtained can be heat treated, which reduces water content and can slow down the growth of the microorganisms, which are responsible for the undesirable fermentation of honey. Unprocessed honey appears to be the healthiest, but in practice, it's often heat treated to slow down or back up the crystallization process and to make its dosage during technical processes easier. It is widely believed that heating of honey may have a harmful impact on its properties. There are countless articles of popular science, that warn of heating and cooking with honey. Should honey never be heated? The aim of this work is to give an overview of the influence...
This study aimed to determine the suitability of sugar beet pulp digestion by-products as soil am... more This study aimed to determine the suitability of sugar beet pulp digestion by-products as soil amendments for maize grown for energy purposes. In a plot experiment, nitrogen fertilizer at a standard rate of 200 kg N ha−1 was applied as a control vs. treatment with solid and liquid digestate fractions. Digestate was obtained from a gasifier processing only sugar beet pulp. Following harvest, heating and calorific values were determined together with the yield and chemical composition of the maize cob and stover. It was found that soil amendment with crude (unseparated) digestate or its two fractions (separated into liquid and solid) produced higher yields of maize cobs and stover compared with the application of standard fertilizer. An analysis of the energy value of the maize plant revealed differences between the studied soil treatments. Cobs obtained from plots treated with the digestate showed higher calorific and heating values than those obtained from control plots; however, ma...
Celem pracy było określenie wpływu zmieniającego się otoczenia gospodarczego i społecznego na war... more Celem pracy było określenie wpływu zmieniającego się otoczenia gospodarczego i społecznego na warunki działalności gospodarczej małego zakładu piekarniczo-cukierniczego. W artykule przedstawiono analizę strategiczną przedsiębiorstwa na podstawie wskaźników rachunkowo-zarządczych oraz analizę procesów technologicznych wybranych produktów. Ocenę wskaźnikową wykonano z zastosowaniem macierzy BCG. Skupiono się na najbardziej kosztochłonnych procesach i operacjach jednostkowych produkcji. Wprowadzono zmianę techniczno-technologiczną, tj. zastosowano komorę chłodniczogarowniczą. Zmiana procesu przygotowania półproduktów wpłynęła na optymalizację procesową i zmianę systemu pracy. Następnie sprawdzono stan mikrobiologiczny wybranych produktów piekarniczych (bułek: kajzerka, wieloziarnista, drożdżowa) po wprowadzeniu zmian technologicznych. Mikroflora bułek była zgodna z przyjętymi normami, nie stwierdzono niepożądanej mikroflory mogącej zanieczyszczać pieczywo, zatem wprowadzone zmiany technologiczne nie miały wpływu na stan mikrobiologiczny bułek. Stwierdzono, że zaproponowane zmiany technologiczne mogą mieć korzystny wpływ na wynik operacyjny i główne wskaźniki ekonomiczne w małym zakładzie piekarniczo-cukierniczym.
Zywnosc Nauka Technologia Jakosc/Food Science Technology Quality, 2020
Celem pracy było określenie wpływu zmieniającego się otoczenia gospodarczego i społecznego na war... more Celem pracy było określenie wpływu zmieniającego się otoczenia gospodarczego i społecznego na warunki działalności gospodarczej małego zakładu piekarniczo-cukierniczego. W artykule przedstawiono analizę strategiczną przedsiębiorstwa na podstawie wskaźników rachunkowo-zarządczych oraz analizę procesów technologicznych wybranych produktów. Ocenę wskaźnikową wykonano z zastosowaniem macierzy BCG. Skupiono się na najbardziej kosztochłonnych procesach i operacjach jednostkowych produkcji. Wprowadzono zmianę techniczno-technologiczną, tj. zastosowano komorę chłodniczo-garowniczą. Zmiana procesu przygotowania półproduktów wpłynęła na optymalizację procesową i zmianę systemu pracy. Następnie sprawdzono stan mikrobiologiczny wybranych produktów piekarniczych (bułek: kajzerka, wieloziarnista, drożdżowa) po wprowadzeniu zmian technologicznych. Mikroflora bułek była zgodna z przyjętymi normami, nie stwierdzono niepożądanej mikroflory mogącej zanieczyszczać pieczywo, zatem wprowadzone zmiany tec...
Water pollution is an immense environmental problem, and plant protection products are part of it... more Water pollution is an immense environmental problem, and plant protection products are part of it. The organophosphorus insecticides, chlorpyrifos as an example, were used for years, and their high concentration could negatively influence ecosystems. Some of the plants, such as macrophytes, were exposed to a variety of stress factors. To live on, the macrophytes developed an efficient antioxidative system consisting of enzymatic and non-enzymatic antioxidants. The remediation process of polluted water ecosystems caused by plant protection products in our climate zone can be intensified if it is provided by autochthonic macrophytes. The results of our studies are part of the research that allows optimizing the phytoremediation process without irreversible effect on investigated species. The influence of various concentrations of chlorpyrifos on the enzymatic system in Canadian waterweed (Elodea canadensis Michx.), needle spikerush (Eleocharis acicularis L.), and water mint (Mentha aq...
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Aims: The thermal plasma treatment is an effective method which can be used to convert hazardous ... more Aims: The thermal plasma treatment is an effective method which can be used to convert hazardous waste into less toxic or inert glassy products. The aim of this paper is to show the experimental use of a thermal plasma treatment process to transform the hospital incineration fly ash into glassy products (vitrificates) that can be stored on the land without harmful environmental effects or sintered for producing with some additives coloured tiles useful as construction materials. Scope: The aims were achieved by: (i) optimization of temperature and energy used adjusting the process to minimum cost and (ii) stabilization of vitrificates with different compositions of waste mixtures. The chemical stabilization of final products was examined by heavy metals leachability tests. Hardness measurements were done to verify the physical stabilization of vitrificates. Also, it has been tested if the reinforcement and coloration of raw material by various pigments as well as the chemical compounds affect the stability of the final products. Conclusion: It was seen that chemical composition of raw materials influenced the chemical and physical properties of the vitrificates and decided about their internal structures.
The paper presents the results of research on the vibrating motion of a laboratory screen with a ... more The paper presents the results of research on the vibrating motion of a laboratory screen with a rectilinear (segmental) trajectory of vibrations during its start-up and braking. The investigations were carried out on a modernized stand equipped with a system of two vibrating motors applied in newer solutions of industrial screens, which are mounted directly on the riddle. The tests were carried out for three different frequencies using three-axis acceleration sensors. The analysed parameter was the increase in the amplitude of vibrations in transient states compared to the amplitude during the stable operation of the device. The maximum multiplication of the vibration amplitude of the classic drive system during start-up was 9.7 (mm/mm) in the vertical direction and 5.7 (mm/mm) for the new system. During braking, the maximum multiplication of the vibration amplitude of the classic drive system was 6.9 (mm/mm) vertically, while for the drive system with vibration motors, it was 11.4...
Water pollution can be moved or limited by macrophytes in a phytoremediation process. The presenc... more Water pollution can be moved or limited by macrophytes in a phytoremediation process. The presence of insecticides in the plant life environment may affect physiological processes and contribute to the formation of secondary oxidative stress in plant tissues. To protect against oxidative stress, macrophytes have developed a system of mechanisms consisting of nonenzymatic and enzymatic antioxidants. The influence of various concentrations of chlorpyrifos on the nonenzymatic system in Canadian waterweed (Elodea canadensis Michx.), needle spikerush (Eleocharis acicularis) and water mint (Mentha aquatica L.) was studied. The differences in the value of the total concentration of polyphenols and flavonoids, as well as analysis of chlorophyll-a, chlorophyll-b, anthocyanin and carotenoid concentrations were determined in leaves. Research indicated a significant increase in the content of polyphenols and flavonoids in a solution with the highest concentration of chlorpyrifos while the oppos...
Many researchers who investigate the process of grinding and try to describe its kinetics use the... more Many researchers who investigate the process of grinding and try to describe its kinetics use the classical form of equations developed by Sedlatschek and Bass and their modified form presented by Austin. Some difficulty in applying the above mentioned models is caused by their complex form of notation, particularly when increasing the accuracy of analysis which induces a growing number of size grades into which the granular material is divided. At present, there are no models which would be characterized by a simple notation on the one hand, and would take into account the effect of numerous process parameters on grain size composition of a ground product on the other hand. This chapter presents results of investigations of grinding which covered the analysis of particle size distribution and statistical analysis using the theory of moments. The investigations are carried out in a laboratory mill 6 dm 3 in volume and 200 mm of inner diameter. Experiments are performed for four rock materials with significant differences in Mohs hardness numbers. During the experiments the mass and type of balls, the degree of mill filling with feed and rotations frequency of the mill are changed. Dependence of the concentration and asymmetry coefficients and mean grain size on different equipment and process parameters is presented in the form of mathematical relations.
Honey is one of the world's most valued natural food products. Characteristic, pleasant aroma... more Honey is one of the world's most valued natural food products. Characteristic, pleasant aroma, golden colour, sweet taste and healthpromoting properties cause a continuous increase of honey consumption in the European Union. The most wanted is regional honey. However, imported honey available on the market has often lower prices. The honey obtained can be heat treated, which reduces water content and can slow down the growth of the microorganisms, which are responsible for the undesirable fermentation of honey. Unprocessed honey appears to be the healthiest, but in practice, it's often heat treated to slow down or back up the crystallization process and to make its dosage during technical processes easier. It is widely believed that heating of honey may have a harmful impact on its properties. There are countless articles of popular science, that warn of heating and cooking with honey. Should honey never be heated? The aim of this work is to give an overview of the influence...
This study aimed to determine the suitability of sugar beet pulp digestion by-products as soil am... more This study aimed to determine the suitability of sugar beet pulp digestion by-products as soil amendments for maize grown for energy purposes. In a plot experiment, nitrogen fertilizer at a standard rate of 200 kg N ha−1 was applied as a control vs. treatment with solid and liquid digestate fractions. Digestate was obtained from a gasifier processing only sugar beet pulp. Following harvest, heating and calorific values were determined together with the yield and chemical composition of the maize cob and stover. It was found that soil amendment with crude (unseparated) digestate or its two fractions (separated into liquid and solid) produced higher yields of maize cobs and stover compared with the application of standard fertilizer. An analysis of the energy value of the maize plant revealed differences between the studied soil treatments. Cobs obtained from plots treated with the digestate showed higher calorific and heating values than those obtained from control plots; however, ma...
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