Temat: Cellulose - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Obtaining and Application of New Cellulose- and Graphene Oxide-Based Adsorbents for Treatment of Industrial Waste Containing Heavy Metals
Autorzy:: Fryczkowska, B.
Wyszomirski, M.
Puzoń, M.
Powiązania:: https://bibliotekanauki.pl/articles/125232.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: cellulose
graphene oxide
sorption
galvanizing wastewater
Opis:: The paper presents the results of studies on the preparation and properties of composite granules produced by phase inversion from cellulose (CEL) solutions in 1-ethyl-3-methylimidazole acetate (EMIMAc), containing nano-addition in the form of graphene oxide (GO) in N,N-dimethylformamide (DMF). Water absorption and sorption of such compounds as FeCl₃, methylene blue (MB) and bovine serum albumin (BSA) were studied. In addition, attempts were made to investigate the sorption properties of the obtained cellulose granules in terms of metals removal from galvanizing wastewater. Among the many components, iron and lead were found to have the highest concentration (~ 1 mg Fe/dm³; ~2 mg Pb/dm³) in the tested wastewater sample. The qualitative and quantitative composition of the wastewater was examined by UV-Vis spectrophotometry. The studies show that doping of cellulose with Graphene oxide clearly affects the physical properties of this biopolymer. GO improves the water absorption of CEL/GO composite cellulose granules only in the concentration above 0.05% w/w. For a concentration of 0.1% w/w of GO in cellulose, water absorption is increased by ~108% compared to pure cellulose granules. In addition, the use of dry and wet granules in the study changes their sorption properties with respect to all tested substances. Studies on test solutions have shown that the sorption of cellulose granules decreases with increasing molar mass of test compounds, in the following order: FeCl₃, methylene blue (MB) and bovine albumin (BSA). This means that the cellulose granules obtained in the experiment are made up of small micropores, which makes the diffusion of compounds of high molecular weight difficult. The best sorption results were obtained for ferric ions and amounted to 66–72% for FeCl₃ solution, and ~92% for the wastewater that was sorbed on pure cellulose granules.
Źródło:: Journal of Ecological Engineering; 2017, 18, 6; 43-52
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Factors Influencing Composting Poultry Waste
Autorzy:: Kopeć, M.
Chmiel, M.
Gondek, K.
Mierzwa-Hersztek, M.
Antonkiewicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/124483.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: poultry waste
cellulose
yeast
compost
biological activity
Opis:: Organic recycling of waste, taking into account sanitary safety, should be a fundamental method for recovering the nutrients present in the waste for plants and organic matter. It also refers to byproducts of animal origin, which are not intended for con-sumption by humans. In the present research , composting of hydrated poultry slaugh-terhouse waste with maize straw was carried out. A combination with fodder yeast and post-cellulose lime was also introduced, which modified chemical and physico chemical properties of the mixtures. The experiment was carried out by recording the biomass temperature for 110 days in 1.2×1.0×0.8 m reactors with perforated bottoms enabling active aeration. The following parameters were taken into consideration in the composted material: carbon, nitrogen, sulfur, respiratory activity, microorganisms, fractions of compost obtained after washing on sieves. Small amounts of fodder yeast favoured the development of microorganisms and caused a sanitary risk in the final product. At the initial stage, the temperature of raw compost in that object was several degrees lower than in the case of the composted mass without yeast addition. The addition of post-cellulose lime at ratios 6.5:1:6.5 (maize straw: poultry slaughterhouse waste: post-cellulose lime) caused a change in the time of microbiological activity, and led to its inhibition in the final process. In comparison to objects with poultry waste, the highest degree of hygienization was found in the compost with post-cellulose lime (with pH close to neutral). By adjusting the ratios of substrates we can influence the microbiological activity, but the amounts of individual substrates should be determined taking into account the quality of the obtained compost.
Źródło:: Journal of Ecological Engineering; 2015, 16, 5; 93-100
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Simple and Combined Pretreatment of a Mixture of Forestry and Aromatic-Medicinal Plant Waste by Chemical, Physical and Enzymatic Methods
Autorzy:: Bendaoud, Ahmed
Belkhiri, Abdelkhalek
Maai, Mohamed
Moubchir, Tarik
Hmamou, Anouar
Tlemcani, Sara
Eloutassi, Noureddine
Lahkimi, Amal
Powiązania:: https://bibliotekanauki.pl/articles/24201758.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biomass
lignocellulosic complex
pretreatment
cellulose
plant waste
Opis:: Forestry waste (FW) extracted parts ofmedicinal-aromatic plant waste (EPW) and unused parts (UPW) are considered potential resources for energy recovery (their heating value of approximately 19 MJ/kg).In order to valorize lignocellulosic biomass, a pretreatment process is required to hydrolyze the recalcitrant lignocellulosic complex into fermentable simple sugars. The aim of this study is to determine the best method of pretreatment that takes into account treatment time, efficiency, and environmental friendliness. The mixture of FW, EPW, and UPW was treated by simple and combined treatment using different methods like acid sulfuric (Ac), steam explosion (SE), and enzymatic (E) (cellulase and hemicellulase).The results showed that the combined and simple Ac treatments are the mostefficient compared with SE and E treatments in the hydrolysis of polysaccharide of cellulose with a rate respectively of 90.5% and 77.6% and hemicellulose with a rate respectively of 80.63% and 87.14%. In addition, both of the preceding methods release an important rate of total phenolic compounds. Combined treatment demands high time but is friendly (approximately 1 day), and Ac treatment is less time-consuming (about 25 min) but harmful to the environment and causes the corrosion of equipment.In conclusion, combined treatment can be the best method and the high time required can be reduced with the progress of the research.
Źródło:: Journal of Ecological Engineering; 2023, 24, 4; 376--383
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Preparing and Using Cellulose Granules as Biodegradable and Long-Lasting Carriers for Artificial Fertilizers
Autorzy:: Gabryś, T.
Fryczkowska, B.
Powiązania:: https://bibliotekanauki.pl/articles/124875.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: cellulose
ionic liquid
granule
long-acting fertilizers
Opis:: The paper presents the results of research on the preparation and use of cellulose granules as carriers of nutrients in the cultivation of plants. The granules were prepared from a cellulose solution in 1-ethyl-3-methylimidazole acetate followed by coagulation in water and primary alcohols: methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol, 1-hexanol and 1-octanol. Modifications of granules were also carried out by hydrophobization at elevated temperature and by encapsulation in a polylactide solution. As a result of the research, cellulose granules were obtained, which were characterized by different porosity, depending on the type of coagulant used. The morphology of granules surface and cross-sections was examined by means of scanning electron microscopy (SEM). The cellulose granules exhibited good sorption/desorption properties which were investigated by conductometry and UV-Vis spectroscopy. The longest desorption time of NH₄NO₃ was characteristic of granules obtained as a result of thermal hydrophobization of the surface, which were used in the cultivation of the spider plant. As a result of the research, cellulose granules were obtained which may find potential application in crop production, as long-acting, non-dusting and fully biodegradable fertilizers.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 111-122
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The effect of growth regulator on structural and non-structural carbohydrates and lignin content in selected grass species and cultivars
Autorzy:: Ciepiela, G. A.
Godlewska, A.
Powiązania:: https://bibliotekanauki.pl/articles/125416.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Dactylis glomerata
Festulolium braunii
Kelpak
cellulose
hemicellulose
Opis:: The research was undertaken to determine the effect of the biostimulant Kelpak SL, derived from brown seaweed species Ecklonia maxima (kelp), on structural and non-structural carbohydrates, as well as lignin content in orchard grass and Braun’s festulolium. The experiment was a split-plot arrangement with three replicates. It was set up at the experimental facility of the University of Natural Sciences and Humanities, Siedlce, in late April 2009. The following factors were examined: an application of the plant growth regulator Kelpak SL applied at the rate of 2 dm³·ha^-1 vs an untreated control (0 dm³··ha^-1), pure sown grass species and cultivars grown in monoculture: Dactylis glomerata, cv. Amila and Tukan, as well as Festulolium braunii cv. Felopa and Agula. This study revealed that an application of Kelpak significantly reduced cellulose, hemicellulose and lignin contents of the grasses but significantly increased non-structural carbohydrates, regardless of the remaining factors. Non-structural carbohydrates were the highest in Kelpak-treated Festulolium braunii (on average, 232.7 g·kg^-1).
Źródło:: Journal of Ecological Engineering; 2015, 16, 3; 189-197
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Bioactive Membranes from Cellulose with a Graphene Oxide Admixture
Autorzy:: Machnicka, A.
Fryczkowska, B.
Powiązania:: https://bibliotekanauki.pl/articles/123371.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: cellulose
graphene oxide
membranes
bactericidal properties
fungicidal properties
Opis:: The paper presents the results of microbiological tests of composite membranes made of cellulose (CEL) with graphene oxide (GO) admixture. At the beginning, the antibacterial properties of the GO in aqueous solutions of various concentrations (0.001; 0.01; 0.1% w/w) were studied, and the obtained results allowed to use GO as an additive to cellulose membranes. The solution used to prepare the membranes was a 5% cellulose solution (CEL) in 1-ethyl-3-methylimidazolium acetate (EMIMAc), into which various amounts of graphene oxide (GO) dispersed in N,N-dimethylformamide (DMF) were added (0.5÷28.6% of GO). From this solution, composite membranes were formed using phase inversion method. It was observed that the GO addition influences the process of membrane formation and their physicochemical properties. The obtained membranes were subjected to microbiological tests using the Gram-negative bacteria (Escherichia coli), Gram-positive bacteria (Staphylococcuc aureus) and fungi (Candida albicans). It was observed that the GO addition to the cellulose membrane (GO/CEL) inhibited the growth of bacteria and fungi, and the biological activity as dependent on the type of living organism and the size of GO particles.
Źródło:: Journal of Ecological Engineering; 2018, 19, 6; 231-240
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Production of Superabsorbent Biopolymer from Modified Cellulose-Based Polivinyl Alcohol with Variation of the Number of Initiator and Crosslink Agent
Autorzy:: Susmanto, Prahady
Putri, Aulia Rahmani
Nugraha, Mohamad Zaky
Powiązania:: https://bibliotekanauki.pl/articles/24201745.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: polyvinyl alcohol
cellulose bagasse
initiator
crosslink agent
superabsorbent
Opis:: The problems that are often encountered in the results of the development of material modification of super absorbent polymers include water absorption ability and ability swelling which is low, limited solubility in water and organic compounds, in addition to the condition of the material that is hard and brittle and not environmentally friendly, also being difficult to decompose. These conditions can be minimized and improved through modification of monomer compounds, crosslinker, and initiator in the polymerization process. The polymerization process is carried out by the method of chemical crosslinker with crosslink agent i.e. formaldehyde in the main chain (backbone), namely polyvinyl alcohol, and daughter chains, i.e. bagasse cellulose, with the help of an initiator in the form of potassium persulfate. The results of the study showed that formation of a new functional group (C-OH stretch) at 1143.30 cm-1; (-OH) at 3461.03 cm-1; (C-O-C) at 1200.55 cm-1; (C=O) at 1529.86 cm-1. The highest absorption capacity reached 746.49% in the sample with 0.8 gram of initiator and crosslink 0.8 mL. Mark Swelling the highest was obtained under acidic conditions, namely pH 6 with a value of 358.30. The surface morphology of the superabsorbent, which is a dense, strong and elastic surface, is formed with pores ±11.75 nm. The surface change proves that the grafting process and interfacial interactions of two materials are going well.
Źródło:: Journal of Ecological Engineering; 2023, 24, 6; 98--108
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The Effect of Soil Conditioners on Cellulose, Hemicellulose, and the ADL Fibre Fraction Concentration in Dactylis Glomerata and Lolium Perenne
Autorzy:: Truba, M.
Wiśniewska-Kadżajan, B.
Sosnowski, J.
Malinowska, E.
Jankowski, K.
Makarewicz, A.
Powiązania:: https://bibliotekanauki.pl/articles/125103.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: cellulose
hemicellulose
Acid Detergent Lignin
Dactylis glomerata
Lolium perenne
Opis:: Replicated three times, the research was conducted in the experimental field between 2011 and 2014. Three soil conditioners with the following trade names: UGmax, Eko- Użyźniacz, and Humus Active Papka were used in the experiment, separately or together with NPK fertilisers. They were all used on plots sown with two species of grass, Dactylis glomerata of the Bora variety and Lolium perenne of the Info variety. The plant material from both grass species was tested for the concentration of ADL fraction (% DM), cellulose (% DM), and hemicellulose (% DM). It was found that the concentration of cellulose, hemicelluloses, and the ADL fraction was significantly higher in the biomass of Dactylis glomerata than in the biomass of Lolium perenne. The grass from the plot with the UGmax soil conditioner applied had the highest amount of cellulose and hemicellulose. The lowest amount of those organic compounds was found in the grass treated with UGmax together with mineral fertilisers and in plants treated with Humus Active, together with mineral fertilisers. However, the fertilisers and conditioners did not increase the ADL content in both grass species.
Źródło:: Journal of Ecological Engineering; 2017, 18, 1; 107-112
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Development and Characterization of Polyvinyl Alcohol/Bacterial Cellulose Composite for Environmentally Friendly Film
Autorzy:: Singhaboot, Pakjirat
Kraisuwan, Wilaiporn
Chatkumpjunjalearn, Tanwalai
Kroeksakul, Patarapong
Chongkolnee, Boonsong
Powiązania:: https://bibliotekanauki.pl/articles/24201756.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: polyvinyl alcohol
bacterial cellulose
biodegradable film
Komagataeibacter intermedius BE073
Opis:: This research aimed to develop and characterize polyvinyl alcohol (PVA)/bacterial cellulose (BC) composite for environmentally friendly films. BC was produced from a high-performance strain of Komagataeibacter intermedius BE073 isolated from a bio-extract sample. The film was prepared by varying the ratio between PVA and BC content, and treatments consisted of 100:0, 90:10, 80:20, 70:30, and 60:40. The characterization of PVA/BC film in terms of mechanical properties, film structure, water and oxygen resistances, thermal stability, and biodegradation were investigated. Results revealed that PVA/BC film had properties superior to that of pure PVA film, and it has a high biodegradation rate. The mechanical properties changed little with the addition of BC, but the tensile strength and Young’s modulus increased with the addition of BC. Water absorption and moisture content were also reduced. However, adding BC improved oxygen transmission rates and thermal stability properties. Most importantly, the addition of BC helped the film to degrade. The higher the amount added, the higher the natural decomposition rate.
Źródło:: Journal of Ecological Engineering; 2023, 24, 6; 226--238
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Investigation of Enzymatic Degradation of Solid Winemaking Wastes
Autorzy:: Krusir, Galyna
Sagdeeva, Olga
Malovanyy, Myroslav
Shunko, Hanna
Gnizdovskyi, Oleksandr
Powiązania:: https://bibliotekanauki.pl/articles/123929.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: winemaking waste
grape extract
enzymatic degradation
bioconversion
cellulose
cellulase
environmental safety
Opis:: The work is devoted to the research of the enzymatic destruction process of solid waste of the primary winemaking enterprises the introduction of advanced technology of their utilization and creation of optimally balanced feed additive. The processing of grapes produces waste, the storage and accumulation of which in environmental components leads to the loss of valuable resource in the composition of waste and leads to the creation of increased levels of environmental hazards. Enzymatic degradation of cellulose in the composition of waste by the cellulase enzyme through the microorganisms’ action is the basis of the biotechnological process. To implement this process, it is necessary to determine the main parameters and modes of the bioconversion process, investigation of which the study is devoted. The basic characteristics of the enzymatic degradation process were determined and data were obtained for the technology improvement of solid waste utilization of the wine industry enterprises. Comparative analysis of bioconversion of different types of waste proves that the cellulose enzymatic degradation is the most effective for the grape pomace in the waste, allows us to obtain valuable feed additive and reduce the environmental danger level.
Źródło:: Journal of Ecological Engineering; 2020, 21, 2; 72-79
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Isolation of Bacteria from Drill Cuttings, their Identification and Assessment of Destructive Potential
Autorzy:: Chernykh, Elena G.
Powiązania:: https://bibliotekanauki.pl/articles/2086394.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: anionic surfactant
drill cuttings
carboxymethyl cellulose
diesel fuel
surfactant
cationic surfactant
oil-based drilling fluid
hydrocarbon-oxidizing microorganisms
Opis:: The drilling of any oil and gas well is accompanied by the use of drilling fluids consisting of chemical reagents and materials of varying degrees of environmental hazard. The existing drilling waste disposal technologies are expensive, energyand labor-intensive, and do not always contribute to the formation of environmentally friendly compounds. In this regard, the possibility of using destructor microorganisms capable of growing and exhibiting biochemical activity under the conditions of complex pollution, in an environment with a high content of hydrocarbons, surfactants and polymer additives capable of biodegrading these substances, is relevant. In connection with the foregoing, the search for new strains of bacteria for the disposal of drilling waste, which are resistant to the conditions of complex toxic effects of drill cuttings components and, at the same time, capable of providing a significant degree of detoxification of the reagents that are part of hydrocarbon-based solutions, is relevant.
Źródło:: Journal of Ecological Engineering; 2022, 23, 4; 155--163
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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