Thematische Bibliographien / Microwave regeneration

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  2. Dissertationen
  3. Buchteile
  4. Konferenzberichte

Auswahl der wissenschaftlichen Literatur zum Thema „Microwave regeneration“

Autor: Grafiati
Veröffentlicht am 9. November 2024

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Zeitschriftenartikel zum Thema "Microwave regeneration"

1

Wang, Shu Hui, Meng Xu und Ming Guo Yu. „Effect of Rotary Partition DPF Structure on its Regeneration Characteristics with Microwave“. Applied Mechanics and Materials 556-562 (Mai 2014): 1013–16. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1013.

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The energy that traditional diesel particulate filter (DPF) regeneration with microwave requires in regeneration process often exceeds the capacity of the vehicle's battery, a rotary partition regenerative DPF with microwave is proposed recently, which was a annular column consisting of the fan-shaped filter units. A filtration unit microwave heating regeneration model was established aiming at this DPF, to study the regenerative properties of the filtration unit and to get influence that its shape structure plays on reproduction characteristics. The results show that: the central angle, length to diameter ratio, the ratio of inner and outer diameter of the DPF all have larger impact on the regeneration. The results can provide theoretical basis and reference for practical development of the new DPF.
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Feng, Quan Li, Chen Xu Wang, Xue Qian Wang und Ping Ning. „Regeneration of Activated Carbon Fiber Using Microwave under Vacuum Condition“. Applied Mechanics and Materials 373-375 (August 2013): 2019–23. http://dx.doi.org/10.4028/www.scientific.net/amm.373-375.2019.

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The purpose of this work was to explore the application of microwaves for the regeneration of activated carbon fibers saturated with ethanol under vacuum condition. The efficacy of the regeneration was analyzed by the rate of desorption and mass loss. When the microwave power was 680W , the dosage of activated carbon fiber was 3.5g , the degree of vacuum is 0.05MPa and the microwave irradiation time was 180s, the desorption rate was up to 95.3% and the outlet concentration of ethanol was 97.5%. The adsorption of activated carbon fiber after microwave regeneration for many times was larger than the fresh activated carbon fiber. And the rate of total mass loss was 3.54%.
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Wang, Chen Xu, Xue Qian Wang, Ping Ning und Quan Li Feng. „Regeneration of Activated Carbon Fiber by Microwave under Nitrogen Condition“. Applied Mechanics and Materials 373-375 (August 2013): 2024–29. http://dx.doi.org/10.4028/www.scientific.net/amm.373-375.2024.

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The purpose of this work was to explore the application of microwaves for the regeneration of activated carbon fibers saturated with ethanol. The efficacy of the regeneration was analyzed by the rate of desorption and mass loss. When the microwave power was 528W , the dosage of activated carbon fiber was 3.0g , the nitrogen gas flow rate was 1.4m3/h and the microwave irradiation time was 180s, the desorption rate was up to 90.2% and the outlet concentration of ethanol was 95.6%. The adsorption of activated carbon fiber after microwave regeneration for many times was larger than the fresh activated carbon fiber. And the rate of total mass loss was 4.74%.
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Grygierzec, Beata, Krzysztof Słowiński, Stanisław Mazur, Sylwester Tabor, Angelika Kliszcz, Agnieszka Synowiec, Dariusz Roman Ropek und Lidia Luty. „Condition of Young Japanese Knotweed (Reynoutria japonica Houtt.) Offshoots in Response to Microwave Radiation of Their Rhizomes“. Agronomy 13, Nr. 11 (18.11.2023): 2838. http://dx.doi.org/10.3390/agronomy13112838.

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Invasive Japanese knotweed is one of Poland’s most aggressive and difficult-to-control species. New methods of control are of utmost importance. This study aimed to analyze young knotweed offshoots’ regeneration and physiological condition after treatment of their rhizomes with microwaves of high frequency. The fresh rhizomes were microwaved in the laboratory once for different times (from 5 to 60 s, interval 5 s). Next, in the greenhouse, the growth of offshoots and their biochemical state (spectrophotometry of leaves) were recorded in three measurement series. It was shown that the microwave treatment for 35 s directly destroys knotweed rhizomes of a diameter of 1–3 cm, so it does not produce new offsprings. The treatment times from 5–25 s delay offspring regeneration and growth and development of leaves. The leaves initiate the mechanisms of protection against microwave stress in offshoots grown from the rhizomes exposed to microwaves for 10 s (increase in the anthocyanin index) and the 5 or 20 s treatments (higher values of the photochemical reflectance index). Based on the effective dose (ED50) analysis, the threshold of harmful effects of microwaves on the growth and development of Reynoutria japonica rhizomes was assumed to be 17–19 s.
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Yang, Dong, und Xin Du. „A review about microwave regeneration technology of waste activated carbon“. IOP Conference Series: Earth and Environmental Science 983, Nr. 1 (01.02.2022): 012101. http://dx.doi.org/10.1088/1755-1315/983/1/012101.

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Abstract Activated carbon (AC) can concentrate and transfer pollutants using its own adsorption capacity. Waste AC is a kind of solid waste, its adsorption capacity of pollutants is greatly reduced after adsorption saturation. If handled improperly, it will cause secondary pollution to the environment. Therefore, it is necessary to regenerate the waste AC to restore its adsorption performance and reduce environmental pollution and resource waste. Microwave regeneration technology is of great research value because of its low energy consumption, time saving and high efficiency. Based on the characteristics of microwave heating and regeneration mechanism, this paper summarizes the advantages of microwave regeneration compared with conventional heating regeneration, and the application status of microwave technology in the regeneration of waste AC was reviewed. The influence of different types of pollutants adsorbed by AC, the change of control conditions for microwave regeneration of AC and the characteristics of AC itself on microwave regeneration were briefly described. And the development direction of microwave regeneration of AC in the future is also prospected.
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Wang, Yu, Pan Han, Jie Yang, Ya Li Liu und Run Ping Han. „Reuse of Spent Natural Zeolite for Methylene Blue Adsorption by Microwave Irradiation“. Advanced Materials Research 233-235 (Mai 2011): 2019–22. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.2019.

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Microwave heating was efficient and the regeneration time was shortened compared to conventional thermal heating. Experiments were conducted to demonstrate that spent zeolite can be regenerated for reuse by microwave irradiation. The spent zeolite tested was prepared from the aqueous solutions of methylene blue. The effects of microwave irradiation time, microwave power on the regeneration efficiency were presented. The results show that microwave irradiation time and microwave power played significant role on the regeneration efficiency. It was concluded that microwave irradiation may be effective method for dye-loaded zeolite reuse.
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Luciano, Giorgio, Maurizio Vignolo, Denise Galante, Cristina D’Arrigo, Franco Furlani, Monica Montesi und Silvia Panseri. „Designing and Manufacturing of Biocompatible Hydroxyapatite and Sodium Trisilicate Scaffolds by Ordinary Domestic Microwave Oven“. Compounds 4, Nr. 1 (30.01.2024): 106–18. http://dx.doi.org/10.3390/compounds4010005.

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In this work, we present a versatile, rapid, and low-cost manufacturing technique to develop bioceramic scaffolds that could enhance bone tissue regeneration via microwave preparation using a domestic microwave oven. The scaffolds were prepared by combining hydroxyapatite and water glass (sodium trisilicate solution), foamed by using a microwave oven, and then characterized by means of Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Analysis (EDX), mechanical properties, infrared spectroscopy (ATR-FTIR), and a density and stability test in water. Furthermore, in vitro tests were performed to verify the affinity of the scaffold for osteoclast cells. The morphology of the samples showed interconnected pores suitable for promoting tissue regeneration and vascularization, while specific mechanical properties were preserved. The physicochemical characterization and the in vitro tests presented promising results for bone regenerative applications. The scaffolds we obtained exhibited comparable properties to those fabricated using a laboratory microwave oven, including the ability to induce the formation of bone-like tissue in vitro.
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Lee, Chang Chuan, Noboru Yoshikawa und Shoji Taniguchi. „Porous Glass Composite as Diesel Particulate Filter and the Microwave Regeneration“. Advanced Materials Research 936 (Juni 2014): 2050–53. http://dx.doi.org/10.4028/www.scientific.net/amr.936.2050.

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In this study, porous SiO2·RO/stainless steel composite body was prepared through the polyurethane sponge replica method. Porous samples obtained through sintering consist of well dispersed and distributed stainless steel particles within the glass matrix. Such microstructure is desired for the purpose as a soot particulate filters (DPF) utilizing microwave rapid and selective heating characteristic, especially during the cold start phase of an engine. Results of microwave heating ability and diesel soot regeneration tests shows that, the fabricated porous composite material is proven to be reliable for rapidly microwave assisted regeneration. Both the regeneration temperature and O2composition in the supplied gas played an important role in the regeneration process.
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Karimifard, Shahab, und Mohammad Reza Alavi Moghaddam. „The effects of microwave regeneration on adsorptive performance of functionalized carbon nanotubes“. Water Science and Technology 73, Nr. 11 (05.03.2016): 2638–43. http://dx.doi.org/10.2166/wst.2016.117.

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In this study, the microwave regeneration method was applied to investigate the properties and adsorptive performance of functionalized carbon nanotubes (f-CNTs) in different cycles of regeneration/reuse. For this purpose, an organic and hazardous dye (Reactive Blue 19) was chosen as a widely used pollutant. N2 adsorption/desorption isotherms, scanning electron microscopy and Fourier transform infrared spectroscopy were used to characterize f-CNTs during the regeneration/reuse procedure. The morphology, specific surface area and pore volume of f-CNT samples were not significantly altered. However, the functional groups present on the f-CNTs’ surface were gradually removed after successive cycles of regeneration/reuse. A sudden decrease of adsorption capacity (about 20%) after the first cycle of regeneration/reuse was attributed to the elimination of functional groups interacting with the dye molecules because of the molecular-level heating. Relatively high regeneration efficiencies (73.30 to 80.16%) proved that the microwave regeneration method was successful. Very high step stripping efficiencies (80.16 to 98.02%) in four cycles of regeneration/reuse demonstrated that the microwave regeneration method could be utilized in consecutive cycles. After four cycles of regeneration/reuse, the CNTs could not be considered as functionalized.
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Bogdanov, Todor, Plamena Marinova, Lubomir Traikov, Pavlina Gateva, Theophil Sedloev, Andrey Petrov, Vlayko Vodenicharov et al. „The Effect of Low-Temperature Microwave Plasma on Wound Regeneration in Diabetic Rats“. Processes 11, Nr. 12 (10.12.2023): 3399. http://dx.doi.org/10.3390/pr11123399.

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Impaired wound healing in diabetic individuals presents a significant clinical challenge, and this study explores the impact of low-temperature microwave plasma in an argon atmosphere, a type of cold atmospheric plasma (CAP), on wound regeneration in diabetic rats. The findings reveal that this CAP treatment accelerates wound regeneration in diabetic rats, promoting faster wound closure, reducing inflammation, and enhancing critical regenerative processes such as angiogenesis, collagen synthesis, and extracellular matrix remodeling. Additionally, CAP exhibits anti-inflammatory effects by modulating the immune response towards a pro-regenerative state. These results underscore the potential of CAP in diabetic wound care, offering a promising approach to address delayed wound healing in diabetic patients and potentially improving the quality of life for those with chronic diabetic wounds.
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Dissertationen zum Thema "Microwave regeneration"

1

Zhang, Ye. „Perovskite coatings in microwave-assisted soot filter regeneration“. [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2004. http://dare.uva.nl/document/75469.

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Popuri, Sriram. „An experimental and computational investigation of microwave regeneration of diesel particulate traps“. Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=987.

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Thesis (Ph. D.)--West Virginia University, 1999.
Title from document title page. Document formatted into pages; contains xxvi, 293 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 252-263).
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Hajj, Ali. „Coupling microwaves with a CO2 desorption process from amine solvent : experimental and modeling approaches“. Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2024. http://www.theses.fr/2024IMTA0412.

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Alors que les besoins énergétiques mondiaux continueront d’être satisfaits par des sources d’énergie fossiles, une solution viable pour réduire les émissions de CO2 serait de mettre en œuvre des technologies de captage du carbone. Le captage du CO2 par absorption dans des solvants aminés fait partie des technologies les plus avancées mises en œuvre sur les unités de post-combustion. Son application reste néanmoins limitée aux grandes sources ponctuelles, et les petites sources restantes difficiles à décarboner. Récemment, le chauffage microondes a gagné en popularité en raison de ses caractéristiques de sélectivité, de nature volumétrique et de facilité de contrôle ; d'autre part, les contacteurs à membrane sont des contacteurs gaz-liquide prometteurs en raison de leur compacité, de leur flexibilité opérationnelle et de leur facilité d'évolutivité par rapport aux colonnes à garnissage. Dans ce travail, nous explorons le fonctionnement de la désorption chimique lors d'un contacteur à membrane à fibres creuses par chauffage par micro-ondes.Une compréhension complète des interactions entre les champs microondes et les phénomènes de transfert est essentielle pour la conception, le fonctionnement et l’optimisation corrects d’un équipement à l’échelle industrielle. Ainsi, les taux de désorption du CO2 ont été étudiés expérimentalement à l'échelle locale d'une seule fibre millimétrique, placée dans une cavité micro-onde monomode. La modélisation numérique de la fibre a permis de visualiser les gradients de température formés à l'intérieur du solvant, et les taux de désorption locaux correspondants. En parallèle, une unité à l'échelle prototype a été conçue pour la désorption du CO2 à l'échelle d'un module à fibres creuses sous des champs microondes. À cette fin, nous avons conçu une cavité sur mesure pour abriter un module à membrane de telle manière que la désorption du CO2 aurait lieu simultanément avec le chauffage électromagnétique
As global energy needs will continue to be met by fossil-fuel based sources, a viable solution to reduce CO2 emissions would be to implement carbon capture technologies. CO2 capture by absorption in amine solvents ranks among the most advanced technologies to be implemented on post combustion units. Still, its application is remains constrained large point sources with small sources remaining difficult to decarbonize. Recently, microwave heating has gained in popularity due to its characteristics of selectiveness, volumetric nature, and ease of control; on the other hand, membrane contactors are promising gas-liquid contactors due to their compacity, operational flexibility, and ease scalability in comparison to packed columns. In this work we explore the operation of chemical desorption when a hollow fiber membrane contactor by microwave heating.A comprehensive understanding of the interactions of microwave fields and transfer phenomena is essential for the correct design, operation, and optimization of an industrial scale equipment. Hence CO2 desorption rates were experimentally studied at the local scale of a single millimetric fiber, placed in a mono-mode microwave cavity. Numerical modeling of the fiber allowed the visualization of the temperature gradients formed inside the solvent, and the corresponding local desorption rates. In parallel, a prototype-scale unit was designed for the desorption of CO2 at the scale of a hollow fiber module under microwave fields. To this end we designed a custom-design cavity was made to house a membrane module in such a manner that CO2 desorption would take place simultaneously with electromagnetic heating
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Shanks, David. „Design, Synthesis and Evaluation of Catalytic Chalcogenide Antioxidants“. Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6164.

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Clem, William Charles. „Mesenchymal stem cell interaction with nanonstructured biomaterials for orthopaedic applications“. Birmingham, Ala. : University of Alabama at Birmingham, 2008. https://www.mhsl.uab.edu/dt/2009r/clem.pdf.

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Thesis (Ph. D.)--University of Alabama at Birmingham, 2008.
Additional advisors: Yogesh K. Vohra, Xu Feng, Jack E. Lemons, Timothy M. Wick. Description based on contents viewed July 8, 2009; title from PDF t.p. Includes bibliographical references.
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Liao, Chih-Kuo, und 廖志國. „Influence of Operating Parameters on Regeneration Efficiency and Reaction Products for Microwave Activated Carbon Regeneration Process“. Thesis, 1999. http://ndltd.ncl.edu.tw/handle/39153899308079946924.

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碩士
國立中山大學
環境工程研究所
87
The objective of this study was to investigate the regeneration of activated carbon by microwave heating process. The multi-component adsorption of both benzene and toluene by spherical activated carbon (SAC) was tested in the research. The regeneration efficiencies of SAC under different experimental parameters included different types of carrier gases (air and nitrogen), carrier flow rates (2.0-10.0 l/min), microwave output power (350-700 W), and regeneration times (0-5 mins). The compositions of flue gas during regeneration were also identified and quantified in the investigation. Experimental results indicated that the decrease in regeneration efficiencies for SAC was detected in the experimental conditions of lower carrier gas flow rates, higher microwave output power, and air as carrier gas. The experimental results were also showed that the SAC pore size was increased and specific surface area was decreased after heating with microwave, which also resulted in the regeneration efficiencies less than 100%. The identified compositions in the flue gas included benzene, toluene, CH4, CO, and CO2. Both benzene and toluene were two major reaction products among these compounds, and the rest compounds mainly resulted from the decomposition of benzene or toluene and oxidation of carbon. The carbon balance for the investigation can be reached up to 90%. Higher concentrations of CH4, CO, and CO2 were observed in the experimental conditions of higher oxygen content in the carrier gas, lower carrier gas flow rates, and greater provided microwave energy. This research provided an innovative process for carbon regeneration.
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Chen, Heng. „Microwave heating for adsorbents regeneration and oil sands coke activation“. Master's thesis, 2010. http://hdl.handle.net/10048/1422.

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Microwave heating has unique advantages compared to convection-radiation heating methods including fast heating rate and selective heating of objects. This thesis studied two applications of microwave heating in the environmental field: adsorbent regeneration and oil sands coke activation. The thermal behavior during microwave heating of select adsorbents when dry or saturated with selected adsorbates was studied to assess the potential for using microwave heating to regenerate adsorbents. Strong microwave-absorbing adsorbents depicted faster heating rate when dry. Weakly microwave-absorbing adsorbents depicted faster heating rate when saturated with polar adsorbates. Fast activation of oil sands coke using microwave heating and KOH was successfully completed. The iodine number of the activated delayed coke obtained after 10 minutes of microwave activation was 1130 mg/g. The short activation time and simplicity of the process demonstrate that microwave-activation is a promising approach to convert oil sands coke into activated carbon adsorbent with high adsorption capacity.
Environmental Engineering
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Yang, Pei-Jung, und 楊斾蓉. „Regeneration and adsorption efficiency of waste activated carbon by microwave treatment“. Thesis, 2015. http://ndltd.ncl.edu.tw/handle/17807269680926051234.

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碩士
國立臺灣大學
環境工程學研究所
103
Activated carbons (AC) have been used widely in the water and wastewater treatment and water reclamation plant. Since the benefit/cost of AC has been considered, the regeneration of AC has played an important role both in the treatment process and the cost reducing. Comparing to traditional regeneration methods, the advantages of microwave radiation process include shorter regeneration time, better efficiency, lower cost, less carbon loss, lower energy consumption, and without secondary pollution and specificity of the adsorbate. The objectives of this study were to regenerate the waste AC, which have been regenerated twice, sampled from water purification plant in Kinmen. The microwave radiation process was used as the regeneration method. Physical and chemical characteristics of regenerated AC were investigated. The diffraction intensity of regenerated AC was determined by XRD, structure changes were observed by SEM, and the specific surface area was analyzed by BET. The adsorption efficiencies of waste and regenerated AC under different operation parameters, such as radiation power, adsorption time, and temperature were investigated by iodine number. The iodine number of waste AC in Kinmen is approximately 450mg/gAC. With 20 mins radiation and power of 100 to 750W, the iodine number of regeneration GAC can all reach more than 800mg/gAC and the regeneration PAC can all reach more than 1050mg/gAC with 10 mins radiation and power of 450W.The iodine number will decrease with power higher than 850W resulted from carbon structure ruined. With using microwave radiation, not only the adsorption efficiency of regeneration AC is two times better than that of original waste AC, but also reducing the AC costs in Kinmenwater purification plant. Therefore, the microwave radiation process hasgreat potential for regeneration of waste AC.
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Lee, Shu-fen, und 李淑芬. „Study on microwave-induced regeneration of activated carbon staurated with denudation wastewater from CD plate recycling process“. Thesis, 2007. http://ndltd.ncl.edu.tw/handle/28654324350645036510.

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碩士
大仁科技大學
環境管理研究所
95
In this study, a denudation wastewater from CD plate recycling process was diluted in concentrations of 100 mg-COD/L as adsorbate during a continuous isotherm adsorption of the activated carbon column. Then, thermal regeneration of the saturated activated carbons was carried out under a microwave-induced heating process. The adsorption capacity of the virgin carbon made of bituminous coal (B-AC) was measured ca. 0.5-2.2% lower than that of the virgin carbon made of coconut shell (C-AC). It may be due to various functional groups and amounts are on structures of them. The adsorption capacity of either B-AC or C-AC was also increasing with an increasing concentration of the adsorbate via batch equilibrium adsorption tests. This implies that a multi-layers adsorption may be occurred between the adsorbate and surfaces of the activated carbons. Freundlish coefficients of K and n were calculated to be 10.0786 and 2.8563 with C-AC as well as to be 13.0377 and 3.4916 with B-AC. The adsorption capacities of the regenerated fixed-bed with either B-AC or C-AC increased with an increase of output power of microwave (PMW), gas hourly space velocity (GHSV) of carrier gas, and heating time period (tMW). The regeneration efficiency of the C-AC fixed-bed was calculated highly up to 111.53% and 114.45%, respectively, as a result of the microwave-induced regeneration process was prolonged to either 15 or 18 min. Both the adsorbate and other substances previously adsorbed onto either C-AC or B-AC may be almost desorbed during the microwave regeneration runs. The regenerated fixed-bed of either B-AC or C-AC was found with a higher adsorption capacity than that of the ones filled either virgin B-AC or virgin C-AC. In addition, adsorption capacity of both the regenerated fixed-beds would reach a maximum value at the sixth adsorption/regeneration cycle, and then decreased approximately to a constant value. This means that the field-spent carbon regenerated by microwave-induced heating method can be reused more times than the ones after traditional thermal regeneration runs. The advantage of microwave-induced heating technology is not only can significantly reduce operation time during the regeneration of activated carbon process, but also can save cost of buying virgin carbon and disposal of spent carbon. The optimum conditions for the carbon fixed-bed regeneration process were found for 15 min under microwave energy at a power level of 427.8 W as well as the inert gas at a GHSV of 287.9 h­1. Time period for the microwave-induced regeneration of either C-AC or B-AC fixed-bed is recommended for 25 min if water of the carbons is removed by the gravity only. The energy cost of the microwave-induced regeneration runs is calculated approximately 7% of the regeneration runs carried out by heating with a traditional electrical furnace. Furthermore, cost of carrier gas consumed for the microwave-induced regeneration runs is about 30% of the electrical furnace heating runs.
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LI, Wei-jun, und 李唯均. „The Regeneration and Reuse of Synthesized Zeolite for Adsorbing Ammonia-N in Wastewater by Using Microwave Plasma Approach“. Thesis, 2019. http://ndltd.ncl.edu.tw/handle/5pcxqs.

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碩士
國立高雄科技大學
化學工程與材料工程系
107
The increasing levels of highly concentrated ammonium nitrogen wastewater in different bodies of water can cause serious ecological damage. Despite the abundance of techniques in treating ammonium nitrogen in water, there is still a lack of method that can be used to rapidly convert it. In this study, synthetic zeolite was utilized to adsorb high concentration of ammonium nitrogen in a simulated solution, and then the zeolite was regenerated via a rapid, dry plasma chemical process in order to convert and remove the ammonium nitrogen. The removal of NH4+-N from water was conducted using 5~20 g-zeolite/L-wastewater, 5-1000 mg-NH4+-N/L of NH4+-N, adsorption time of 0.25-48 hour, and operated at 25℃. The effect of ammonium nitrogen adsorption capacity (mg NH4+-N/g zeolite) and the NH4+-N removal rate (%) were studied. The regeneration of zeolite was then carried out at 1200 W and 200-400℃ for 2 min using nitrogen or air microwave plasma torch. The comparisons of zeolite after regeneration by different methods such as plasma, NaCl solution, and thermal treatment, was also performed in this study. The results from the analyses (crystal structure and morphology) made indicated that the synthetic zeolite is mainly composed of X-type zeolite and a trace of type A zeolite. Based on the conducted experiment, the maximum adsorption capacity could reach up to 41.4 mg NH4+-N/g zeolite and it can reach saturation within 15 minutes. This indicates that the zeolite has a high and rapid adsorption to ammonium nitrogen. Moreover, the ammonium nitrogen desorption rate can reach up to 80% when it was desorbed with 2 M NaCl solution. The study also revealed that at the given parameter: 25℃, initial NH4+-N concentration of 1000 mg-NH4+-N/L, and adsorption time of 15 min, the removal efficiency of NH4+-N reached 60% with an adsorption capacity of 29.8 mg NH4+-N/g-zeolite. The regeneration of zeolite was done using air plasma at 1200 W and 400℃. However, at 400℃, the desorption rate of NH4+-N reached up to 94% but the structure and morphology of zeolite were damaged, which resulted to a difficulty in repeated adsorption. Upon the comparison of plasma and thermal regeneration at 300°C, it is found out that the generated amount of air plasma regeneration and desorption is 79.2% of the theoretical adsorption capacity, which leads to an increased application efficiency. When the plasma is operated below 300℃, the specific surface area and destruction efficiency of NH4+-N have minimal influence in the decrease of adsorption capacity of the regenerated zeolite. However, it was detected that the zeolite retained its original crystal structure and morphology. In conclusion, the regeneration and reuse of synthesized zeolite for adsorbing ammonia -N in wastewater and desorption by dry plasma process, is a promising technique in the treatment of industrial wastewater.
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Buchteile zum Thema "Microwave regeneration"

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Zhang-Steenwinkel, Y., L. M. Zande und A. Bliek. „Microwave-Assisted Regeneration of Soot Filters“. In Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems, 137–42. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2349-1_11.

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Zande, L. M., Y. Zhang-Steenwinkel, G. Rothenberg und A. Bliek. „Microwave Regeneration of Diesel Soot Filters“. In Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems, 247–51. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2349-1_23.

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Abdelghaffar, Rehab. „Recycling/Regeneration of AC Using Microwave Technique“. In SpringerBriefs in Molecular Science, 53–65. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-41145-8_3.

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Kurien, Caneon, Ajay Kumar Srivastava, Karan Anand und Niranajan Gandigudi. „Modelling of Microwave-Based Regeneration in Composite Regeneration Emission Control System“. In Advances in Intelligent Systems and Computing, 313–20. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8618-3_33.

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Dobrotvorskiy, Sergey, Aleksenko Borys, Vitalii Yepifanov, Yevheniia Basova, Ludmila Dobrovolska und Viktor Popov. „The Absorbents Nanoporous Structures Regeneration for Industrial Dryers by Microwave Energy“. In International Conference on Reliable Systems Engineering (ICoRSE) - 2021, 8–22. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-83368-8_2.

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Kurien, Caneon, und Ajay Kumar Srivastava. „Active Regeneration of Diesel Particulate Filter Using Microwave Energy for Exhaust Emission Control“. In Advances in Intelligent Systems and Computing, 1233–41. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-5903-2_129.

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Shang, Xiaobiao, Junruo Chen, Weifeng Zhang, Jinyan Shi, Guo Chen und Jinhui Peng. „Numerical Simulation of Microwave Absorption of Regenerative Heat Exchangers Subjected to Microwave Heating“. In 5th International Symposium on High-Temperature Metallurgical Processing, 605–11. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118887998.ch75.

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Dobrotvorskiy, Sergey S., Ludmila G. Dobrovolska und Borys A. Aleksenko. „Computer Simulation of the Process of Regenerating the Adsorbent Using Microwave Radiation in Compressed Air Dryers“. In Lecture Notes in Mechanical Engineering, 511–19. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-68619-6_49.

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Ramanarayanan, K. T., Krishna Shankar, Satyapaul A. Singh und Inkollu Sreedhar. „Microwave-augmented Carbon Capture“. In Advances in Microwave-assisted Heterogeneous Catalysis, 217–49. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781837670277-00217.

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Although carbon capture methods have been applied for the last few decades due to increasing awareness of global warming and climate change, there has been a surge in the use of microwave assistance for synthesis and regeneration in carbon capture in recent years. This chapter focuses solely on microwave assistance in carbon capture and the future challenges and prospects associated with this technology in this field. Microwave assistance was found to reduce the cost involved and production time required to synthesise CO2 adsorbents, which are expensive. Similarly, the energy consumed during the regeneration of CO2 absorbents and the efficiency of this process were enhanced when microwave heating was used. In general, microwave assistance improved CO2 selectivity and capacity as it positively affected the morphology of the sorption material. Novel techniques for using naturally occurring raw materials for microwave assisted production which could lead to carbon neutral processes have also been presented. Microwave irradiation can also be used in the synthesis of materials used for membrane separation and oxyfuel combustion carbon capture. Some challenges such as the greenness of energy sources for microwave heating still remain. Having said that, this chapter clearly highlights the advantages of microwave irradiation over conventional heating methods.
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Aslam, Muhammad Shahzad, Yun Jin Kim und Qian Linchao. „A Bio-Therapeutically Squalene“. In Advances in Medical Education, Research, and Ethics, 53–65. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-7828-8.ch004.

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Although the skin tissue on our bodies is a well-organized structure with high biomechanical properties like tensile strength and friction, we have all experienced various types of wounds throughout our lives owing to numerous etiological factors. In the general population, it is a substantial source of morbidity. For instance, in the case of burnt skin tissue, self-healing is in fact a large and challenging barrier to tissue regeneration. Squalene is a bioactive triterpene that occurs naturally and plays a key role in the process of making sterols. The most well-known source of squalene is shark liver oil. Vegetable oils may contain squalene in a range of concentrations. They have been extracted using a variety of techniques, including supercritical carbon dioxide, microwave, ultrasonic, cold press, and traditional Soxhlet extractions. In vitro and in animal models, these substances have been demonstrated to have anticancer, antioxidant, drug carrier, detoxifier, skin moisturising, and emollient effects.
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Konferenzberichte zum Thema "Microwave regeneration"

1

Zappia, S., M. B. Lodi, R. Palmeri, A. Fanti, L. Crocco und R. Scapaticci. „Bone Tissue Regeneration Monitoring Using Magnetic Scaffold via Microwave Imaging: a feasibility assesment“. In 2024 International Conference on Electromagnetics in Advanced Applications (ICEAA), 1. IEEE, 2024. http://dx.doi.org/10.1109/iceaa61917.2024.10702020.

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Karpenko, Yu V., S. V. Korneyev und V. N. Nefyodov. „Microwave soot trap regeneration“. In Optical Monitoring of the Environment: CIS Selected Papers, herausgegeben von Nicholay N. Belov und Edmund I. Akopov. SPIE, 1993. http://dx.doi.org/10.1117/12.162181.

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3

Garner, C. P., und J. C. Dent. „Microwave Assisted Regeneration of Diesel Particulate Traps“. In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1989. http://dx.doi.org/10.4271/890174.

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Van Helden, Rinie, Frank Willems, Marc Van Aken und Hans Strijbos. „Engine Demonstration of Microwave Assisted Particulate Trap Regeneration“. In 2005 SAE Brasil Fuels & Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2005. http://dx.doi.org/10.4271/2005-01-2141.

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Zhi, Ning, Zi Xinyun und Yongsheng He. „Radio-Frequency (RF) Technology for Filter Microwave Regeneration System“. In International Fuels & Lubricants Meeting & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-2845.

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Zhi, Ning, Zhang Guanglong, Lu Yong, Liu Junmin, Gao Xiyan, Liang Iunhui und Chen Jiahua. „Analysis of Characteristic of Microwave Regeneration for Diesel Particulate Filter“. In International Off-Highway & Powerplant Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1995. http://dx.doi.org/10.4271/952058.

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Goncharenko, Yu V., M. I. Golovko, V. N. Gorobets, S. M. Zotov und A. I. Govorishev. „Resonator for absorbent rapid regeneration in the electromagnetic field“. In 2005 15th International Crimean Conference Microwave and Telecommunication Technology. IEEE, 2005. http://dx.doi.org/10.1109/crmico.2005.1565163.

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Baikov, A. Yu. „Resotrode with 2Π-regeneration — A promising new source of microwave power“. In 2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE). IEEE, 2016. http://dx.doi.org/10.1109/apede.2016.7878842.

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Iriany, Aga Nugraha und Erni Misran. „Kinetics study of regeneration spent bleaching earth by microwave-assisted extraction“. In THE 4TH TALENTA CONFERENCE ON ENGINEERING, SCIENCE AND TECHNOLOGY (CEST)-2021: Sustainable Infrastructure and Industry in the New Normal Era. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0129301.

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Chunrun, Zhang, Min Jiayi, Chen Jiahua, Liang Lunhui, Liu Junmin und Li Chengbin. „Studies on Regeneration of Diesel Exhaust Particulate Filters by Microwave Energy“. In International Off-Highway & Powerplant Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1994. http://dx.doi.org/10.4271/941774.

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