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wszystkich: 2008
wyświetlamy 1000 najlepszych wyników Pomoc
Wyniki wyszukiwania dla: CARBON CAPTURE AND STORAGE
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Energy Neutrality Versus Carbon Footprint Minimization In Municipal Wastewater Treatment Plants
PublikacjaThe study presents analysis of the carbon footprint (CF) in six medium and large-size municipal wastewater treatment plants (WWTPs) located across Poland. The novelty of the presented study is searching the relationship between level of energy neutrality and CF in the case studies. Although energy and CF go hand-in-hand to some degree but moving towards energy neutrality in WWTPs might also lead to an increase in the total CF of...
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The impact of carbon black particle size on curing characteristics of GTR modified with bitumen
Dane BadawczePresented data shows an impact of particle size of GTR and three different loadings of carbon black on curing characteristics of GTR modified with bitumen. Samples were prepared using a two-roll mill – all in the same manner. After 24 hours of stabilization at ambient conditions they were submitted to the curing analysis via Rheometer Monsanto 100S....
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Silver intercalated carbon nanotubes
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Carbon–silica gel adsorbents
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Carbon isotope effect in superconductingMgCNi3
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Carbon-modified TiO2 for photocatalysis
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N-doped mesoporous carbon nanosheets obtained by pyrolysis of a chitosan–melamine mixture for the oxygen reduction reaction in alkaline media.
PublikacjaBy simple thermal decomposition of low-cost precursors (chitosan, melamine) in an inert atmosphere, nitrogen-doped porous carbonaceous materials were prepared. The samples pyrolyzed at 700 C are composed of mainly mesoporous nitrogen-doped carbon nanosheets and partially graphitized carbon. The nanosheets contain a disordered area due to the strain imposed by the presence of nitrogen and/or oxygen groups in their structure. Some...
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Electrocatalytic performance of oxygen-activated carbon fibre felt anodes mediating degradation mechanism of acetaminophen in aqueous environments
PublikacjaCarbon felts are flexible and scalable, have high specific areas, and are highly conductive materials that fit the requirements for both anodes and cathodes in advanced electrocatalytic processes. Advanced oxidative modi- fication processes (thermal, chemical, and plasma-chemical) were applied to carbon felt anodes to enhance their efficiency towards electro-oxidation. The modification of the porous anodes results in increased...
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Carbon dioxide potential reduction using Start-Stop system in a car
PublikacjaOperating fuel consumption increases significantly when the vehicle stops frequently while driving or when the engine is idling during braking. In such cases, the internal combustion engine consumes the fuel but the mechanical energy is not used by the drive system. The amount of fuel that is consumed in this time by the engine can potentially be saved if the car is equipped with a Stop-Start system. Start-Stop system automatically...
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Effects of different external carbon sources and electron acceptors on interactions between denitrification and phosphorus removal in BNR processes
PublikacjaThe effects of two different external carbon sources (acetate, ethanol) and electron acceptors (dissolved oxygen, nitrate and nitrite) were investigated under aerobic and anoxic conditions with non-acclimated process biomass from a full-scale biological nutrient removal activated sludge system. When acetate was added as an external carbon source, phosphate release was observed even in the presence of electron acceptors. The release...
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Porous carbon derived from rice husks as sustainable bioresources: insights into the role of micro-/mesoporous hierarchy in hosting active species for lithium–sulphur batteries
PublikacjaThe exploration of natural resources as sustainable precursors affords a family of green materials. Exploring highly abundant and available biowaste precursors remaining from food processing throughout a scalable and cost-effective material synthesis path is highly important especially for new materials discovery in emerging energy storage technologies such as lithium–sulphur (Li–S) batteries. Herein, we have produced a series...
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Studies of Optimal Conditions for Depletion of the $^{110m}$Ag Isomer Via Nuclear Excitation by Electron Capture in a Beam-based Scenario
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Analysis of pesticide residues in fruits and vegetables using QuEChERS sample preparation method and gas chromatography with electron capture detection
PublikacjaPesticides are a numerous and diverse group of chemical compounds. They are some of the most toxic substances contaminating the environment, which are used to eliminate pests in agriculture and the household. Despite considerable progress in the development of methods for preparing samples for analysis and for the final determination of analytes, the analysis of pesticides in biological samples continues to present challenges to...
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Prediction of flow boiling heat transfer coefficient for carbon dioxide in minichannels and conventional channels
PublikacjaIn the paper are presented the results of calculations using authors own model to predict heat transfer coefficient during flow boiling for carbon dioxide. The experimental data from various researches were scrutinised conducted for a full range of quality variation and wide range of mass velocity. The aim of the study was to test the sensitivity of the in-house model. The work shows the importance of taking into account surface...
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Forecasting energy consumption and carbon dioxide emission of Vietnam by prognostic models based on explainable machine learning and time series
PublikacjaThis study assessed the usefulness of algorithms in estimating energy consumption and carbon dioxide emissions in Viet- nam, in which the training dataset was used to train the models linear regression, random forest, XGBoost, and AdaBoost, allowing them to comprehend the patterns and relationships between population, GDP, and carbon dioxide emissions, energy consumption. The results revealed that random forest, XGBoost, and AdaBoost...
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Electrode materials for electrochemical capacitors based on poly(3,4-ethylenedioxythiophene) and functionalized multi-walled carbon nanotubes characterized in aqueous and aprotic electrolytes
PublikacjaWithin this work, we report a facile one-stage synthesis of nanocomposites based on functionalized carbon nanotubes (CNTs) and electroactive polymer poly(3,4-ethylenedioxythiophene). Three different composites are investigated as potential electrode materials for the electrochemical capacitors. Two of the composites contain carbon nanotubes (ox-CNTs), functionalized by acid oxidation process (65% HNO3, 120 °C). The third composite...
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Using of carbon nanotubes and nano carbon black for electrical conductivity adjustment of pressure-sensitive adhesives
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Effect of nanosized carbon black on thermal stability and flame retardancy of polypropylene/carbon nanotubes nanocomposites
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Catalytic carbonization of polypropylene by the combined catalysis of activated carbon with Ni2O3 into carbon nanotubes and its mechanism
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Determination of carbon monoxide, methane and carbon dioxide in refinery hydrogen gases and air by gas chromatography
PublikacjaW pracy przedstawiono metodę oznaczania śladowych zawartości tlenku węgla, metanu oraz dwutlenku węgla w rafineryjnych gazach wodorowych oraz powietrzu; granica oznaczalności metody wynosi odpowiednio 0,15, 0,15 oraz 0,20 mikro-gram/litr. Zaprezentowano w pracy prostą modyfikację chromatografu gazowego wyposażonego w detektor płomieniowo-jonizacyjny (FID). Zastosowano kolumnę typu PorapakQ, dodatkowo połączono szeregowo z krótką...
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Heterostructure based on exfoliated graphitic carbon nitride coated by porous carbon for photocatalytic H2 evolution
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Electrochemical performance of MOF-5 derived carbon nanocomposites with 1D, 2D and 3D carbon structures
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Aryl and N-arylamide carbon nanotubes for electrical coupling of laccase to electrodes in biofuel cells and biobatteries
PublikacjaSingle walled carbon nanotubes (SWCNTs) were equipped with aryl residues by chemical reactions. These insoluble materials were used to substitute classical soluble mediators, which help to transfer electrical charge between the conducting electrode and the redox active center of enzyme molecules. The effect of different aryl residues on the efficiency of the catalytic reduction of dioxygen in the presence of laccase was systematically...
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Salt melt synthesis of curved nitrogen-doped carbon nanostructures: ORR kinetics boost
PublikacjaImplementing metal-free electrocatalysts for the oxygen reduction reaction (ORR) and revealing crucial chemical or topographical parameters driving their activity are vital for the development of power cells. The carbon-based catalysts are very often synthesized through carbonization of biopolymers, in particular, those one containing nitrogen groups such as chitosan. Unfortunately, the resulting carbonaceous materials usually...
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Improving denitrification efficiency at the "Wschod" WWTP in Gdansk (Poland) - effects of different carbon sources
PublikacjaCelem badań było określenie wpływu dawkowania trzech różnych źródeł węgla (ścieków po oczyszczaniu mechanicznym, metanolu, ścieków gorzelnianych) na szybkość denitryfikacji, mierzoną w warunkach laboratoryjnych z osadem czynnym z oczyszczalni ścieków Gdańsk-Wschód. Największą szybkość procesu (4.8-5.2 mgN/(g*h)) zaobserwowano dla ścieków przemysłowych. Dodatkowo przeprowadzono badanie długości fazy adaptacji osadu do metanolu w...
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Aspects of intergranular corrosion of AISI 321 stainless steel in high-carbon-containing environments
PublikacjaPurpose – The purpose of this paper is to present a case study of unexpected sensitization to intergranular corrosion of highly resistant AISI 321 steel in petrochemical conditions, where it was subjected to the simultaneous influence of elevated temperature of 250°C and vapors from the asphalt production process. Design/methodology/approach – Corrosion coupons were exposed in an installation carrying asphalt vapors. To identify...
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Morphological and electrochemical characterization of ceramic carbon foam electrodes water treatment applications
Dane BadawczeThis dataset contains morphological and electrochemical characterization of ceramic carbon foam employed as an electrode (CFFE) for the oxidation of a target pollutant. The dataset includes:
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Microporous N-Doped Carbon Obtained from Salt Melt Pyrolysis of Chitosan toward Supercapacitor and Oxygen Reduction Catalysts
PublikacjaThe direct carbonization of low-cost and abundant chitosan biopolymer in the presencesalt eutectics leads to highly microporous, N-doped nanostructures. The microporous structureeasily manufactured using eutectic mixture (ZnCl2 -KCl) and chitosan. Potassium ions here can act as an intercalating agent, leading to the formation of lamellar carbon sheets, whereas zinc chloride generates significant porosity. Here, we present an efficient...
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The Effect of Polyurethane Glycolysate on the Structure and Properties of Natural Rubber/Carbon Black Composites
PublikacjaIn this work the use of polyurethane chemical recycling product (i.e. glycolysis of polyurethane waste realized with the mass excess of polymer) as a plasticizer for natural rubber-based composites was proposed. The effect of plasticizer type (napthenic oil and polyurethane foam glycolysate) and amount (2, 4, 6 or 8 parts per 100 parts of natural rubber) on the processing properties of rubber mixtures and chemical structure, swelling,...
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Energy neutrality versus carbon footprint minimization in municipal wastewater treatment plants
PublikacjaThis work aimed to compare the carbon footprint (CF) of six full-scale wastewater treatment plants (WWTPs). The CF was estimated in the range of 23–100 kg CO2e per population equivalent. In the total CF, the direct emissions held the highest share (62–74%) for the plants with energy recovery from biogas. In the plants depending entirely on the power grid, the indirect emissions due to energy consumption dominated the total CF (69–72%)....
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Synthesis, characterization, and interactions of single-walled carbon nanotubes modified with doxorubicin with Langmuir–Blodgett biomimetic membranes
PublikacjaThe synthesis, characterization, and the influence of single-walled carbon nanotubes (SWCNTs) modified with an anticancer drug doxorubicin (DOx) on the properties of model biological membrane as well as the comparison of the two modes of modification has been presented. The drug was covalently attached to the nanotubes either preferentially on the sides or at the ends of the nanotubes by the formation of hydrazone bond. The efficiency...
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Comparative Analysis of Carbon, Ecological, and Water Footprints of Polypropylene-Based Composites Filled with Cotton, Jute and Kenaf Fibers
PublikacjaComposites containing natural fibers are considered environmentally friendly materials which is related to the reduced use of fossil fuels and the emission of carbon dioxide compared to petroleum-based polymers. Nevertheless, a complete evaluation of their environmental impact requires a broader view. This paper presents a carbon, ecological, and water footprints assessment of polypropylene-based composites filled with cotton,...
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Evaluation of the Impact of Storage Conditions on the Biogenic Amines Profile in Opened Wine Bottles
PublikacjaA survey of biogenic amine (BA) profiles in opened wine bottles has been established to monitor the level of biogenic amines (BAs) in opened bottles against time and other conditions. Bottles of red and white wine were submitted to different temperatures, stopper type (screw cap, cork), and use of vacuum devices. A total of six wines made from a variety of grapes were obtained from vineyards from regions across Poland. Dispersive...
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Effect of gelation and storage conditions on the oxidative stability of microemulsion and nanoemulsion delivery systems
PublikacjaIncreased interest in the use of microemulsion and nanoemulsion delivery systems for medical, cosmetic and food purposes, promotes the development of research on their physical and chemical stability, and the safety of use. Here, we have for the first time evaluated the oxidative stability of linseed oil dispersed in the microemulsion, nanoemulsion, and their gelled systems, stored under different conditions, and compared to the...
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Multimodal Network Based Graphs of Primitives Storage Concept for Web Mining CBIR
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Abnormal Sphingolipid World in Inflammation Specific for Lysosomal Storage Diseases and Skin Disorders
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EFFECTS OF 13 YEARS SOIL FERTILISATION ON STORAGE QUALITY OF âCORTLANDâ APPLES
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Low-Temperature Exfoliated Graphenes: Vacuum-Promoted Exfoliation and Electrochemical Energy Storage
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Influence of Pumped-Storage Power Plant on Physical and Ecological State of Lake Żarnowiec
PublikacjaOd 1983 roku istnieje elektrownia szczytowo-pompowa w Żarnowcu. Od 1973 roku do chwili obecnej prowadzono badania stanu ekologicznegi, chemicznego i fizicznego wód jeziora Żarnowieckiego. W artykule przedstawiono wyniki tych badań i na ich podstawie oceniono wpływ pracy elektrowni na stan jeziora.
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Organic-inorganic materials for fast charging-discharging processes in energy storage devices
PublikacjaPraca dotyczy materiału kompozytowego złożonego z poli(3,4-etylenodioksytiofenu) i heksacyjanokobaltanu żelaza. Materiał został otrzymany elektrochemicznie bezpośrednio na elektrodzie tytanowej metodą jednoetapowa z zawiesiny zawierającej monomer (EDOT) oraz Fe3[Co(CN)6]2 w postaci proszku. Warstwy pEDOT/FehcCo otrzymane potencjostatycznie ładunkiem od 0,6 do 1,5 C/cm2 charakteryzują się różną grubością (od 1,9 do 4 μm) zależną...
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Fast dynamics in the optical storage with Langmuira-Blodgett films of a diazocrown ether molecule
PublikacjaMolekuły z resztą azobenzenu badano z punktu widzenia licznych aplikacji wykorzystujących cykle fotoizomeryzacji trans-cis-trans, wiodących do uporządkowania cząsteczek, a nawet do transportu masy w mikroskali. Ważnym ograniczeniem dla tych materiałów jest powolna dynamika procesu porządkowania, wymagającego molekularnych przekształceń. W tej pracy informujemy o filmach Langmuira-Blodgett (LB) pochodnej eteru azokoronowego (29-membered...
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Increasing the Oxidative Stability of the Wafer Lipid Fraction with Fruit Extract during Storage
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Modification of ASM3 for the determination of biomass adsorption/storage capacity in bulking sludge control
PublikacjaSystemy osadu czynnego z selektorami (SAS) umożliwiają ograniczenie nadmiernego wzrostu bakterii nitkowatych, które odpowiadają za zjawisko zwanę ''puchnięciem osadu''. Celem tych badań było opracowanie modelu matematycznego opisującego szybkie usuwanie substratu w systemach SAS. W tym celu zmodyfikowano Model Osadu Czynnego nr 3 (ASM3) poprzez dodanie równań opisujących zjawiska adsorpcji i bezpośredniego wzrostu bakterii na zaadsorbowanym...
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THE IMPACT OF ENVIRONMENTAL TAXES ON TRANSPORTATION AND STORAGE ENTERPRISES’ DEVELOPMENT – THE CASE OF BALKAN COUNTRIES
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Changes on the Surface of the SiO2/C Composite, Leading to the Formation of Conductive Carbon Structures with Complex Nature of DC Conductivity
Dane BadawczeChanges on the Surface of the SiO2/C Composite, Leading to the Formation of Conductive Carbon Structures with Complex Nature of DC Conductivity
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Closing the loop: Upcycling secondary waste materials into nanoarchitectured carbon composites for the electrochemical degradation of pharmaceuticals
PublikacjaIn this study, we demonstrated the application of electrochemical oxidation as a safer and cleaner technology for minimizing the impact of pharmaceuticals in wastewaters, simultaneously mediated by upcycled secondary waste materials (SWMs)-derived electrodes, to further reduce their environmental impact. The modularity, scalability, ease of operation and reliability make electrochemical oxidation an ideal process for the destruction...
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Effect of pulse laser treatment at different process variables on mechanical behavior of carbon nanotubes electrophoretically deposited on titanium alloy
PublikacjaPurpose: Titanium and its alloys are widely used as biomaterials for long-term implants, but they are usually surface-modified due to their weak bioactivity and wear resistance. Laser processing was used to modify the surface layer, and elemental carbon was a component of the deposited coatings. This research aims to use a combination of both methods based on preliminary electrophoretic deposition of multi-wall carbon nanotubes...
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Modeling N2O behavior during denitrification with different carbon sources and electron acceptors
PublikacjaA mathematical model was developed for identification of the most important mechanism leading to nitrous oxide (N2O) accumulation in denitrifying activated sludge systems. The activated sludge model No. 2d (ASM2d) was extended to include intermediate three steps of the denitrification process. The formation and accumulation of nitric oxide (NO) was assumed to be very low in the performed laboratory experiments. These experiments...
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Carbon nitride exfoliation for photocatalysis and photocatalytic ozonation over emerging contaminants abatement
PublikacjaThe production of graphitic carbon nitride was studied with the addition of a following exfoliation step using ultrasounds, at different times. The treatment produced catalysts with much higher surface areas, from 2.18 m2 g 1 with no treatment to 28.34 m2 g 1 after 36 h of exfoliation. During exfoliation, melem was also produced, and may further enhance the photoluminescence and photocatalytic properties. The photocatalytic reaction...
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Negative carbon dioxide gas power plant integrated with gasification of sewage sludge
PublikacjaOne of the primary objectives of the negative carbon dioxide gas power plant (nCO2PP) is to develop an innovative technology confirming the possibility of the use of sewage sludge to produce electricity while having a positive impact on the environment. In this paper, a mathematical model is presented to estimate thermodynamic parameters of the system in relation to the gasification process and changes in such parameters in the...