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Relevant bibliographies by topics / Ultrasonic pretreatment

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Academic literature on the topic 'Ultrasonic pretreatment'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Ultrasonic pretreatment"

1

Pan, Yi, Wuchao Wang, Kang Gong, Christopher J. Hurren, and Qing Li. "Ultrasonic scouring as a pretreatment of wool and its application in low-temperature dyeing." Textile Research Journal 89, no. 10 (2018): 1975–82. http://dx.doi.org/10.1177/0040517518783348.

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Ultrasonic technology has shown the potential to reduce the cost and environmental impact of textile wet processing. This work investigates the effects of ultrasonic irradiation as a pretreatment on wool and its application in low-temperature dyeing. A significant increase in dye uptake and color strength was observed on the fabric ultrasonically pretreated at 40 kHz, followed by that at 80 kHz and the conventionally treated sample, in both acid dyeing and reactive dyeing. This could be due to the changes of the fiber surface structure and modification of the chemical structure in the cell mem

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He, Wenting, Weiming Guo, and Zhongchun Jiang*. "Effects of Ultrasonic Wave on Water Conditions, Antioxidases, and Free Radical in Cut Nymphaea tetragona During Cold Wet Storage." HortScience 39, no. 4 (2004): 760B—760. http://dx.doi.org/10.21273/hortsci.39.4.760b.

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Effects of two pretreatments, i.e., ultrasonic wave (UW) and ultrasonic wave plus preservative solution (UW+PS), on water conditions of flower stem and membrane stability of petals in Nymphaea tetragona during 6-d cold wet storage. Compared with no pretreatment control, the two pretreatments prolonged the vase life and improved water conditions of the cut flower during cold storage to different degrees. Fresh weight of flower stems and relative water content of petals increased during cold storage. The water utilization efficiency of flower stem and water potential in different parts of flower

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Le, Ngoc Tuan, Carine Julcour-Lebigue, and Henri Delmas. "Ultrasonic sludge pretreatment under pressure." Ultrasonics Sonochemistry 20, no. 5 (2013): 1203–10. http://dx.doi.org/10.1016/j.ultsonch.2013.03.005.

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Chiu, Ying-Chih, Cheng-Nan Chang, Jih-Gaw Lin, and Shwu-Jiuan Huang. "Alkaline and ultrasonic pretreatment of sludge before anaerobic digestion." Water Science and Technology 36, no. 11 (1997): 155–62. http://dx.doi.org/10.2166/wst.1997.0406.

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Pretreatment of waste activated sludge (WAS) results in an improved efficiency of the subsequent anaerobic biotransformation of the organic matter to volatile fatty acids. The pretreatment process has been carried out using alkaline treatment, ultrasonic treatment (20 KHz, 120 W) and different combination of these two methods: alkaline followed by ultrasonic, as well as the combining method in which ultrasonic treatment is applied to WAS samples dosed with alkaline. The hydrolysis efficiency was evaluated based on the quantity of soluble COD (SCOD) and organic nitrogen in the pretreated WAS as

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Jiang, J. Q., Q. L. Zhao, K. Wang, L. L. Wei, G. D. Zhang, and J. N. Zhang. "Effect of ultrasonic and alkaline pretreatment on sludge degradation and electricity generation by microbial fuel cell." Water Science and Technology 61, no. 11 (2010): 2915–21. http://dx.doi.org/10.2166/wst.2010.192.

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Both ultrasonic and alkaline pretreatment of excess sewage sludge were investigated to enhance organic degradation and electricity generation from sludge by the subsequent microbial fuel cell (MFC). The ultrasonic pretreatment showed that the degree of sludge disintegration was directly related to the energy input, ultrasonic density and duration. Alkaline pretreatment demonstrated that more soluble organic matters were released from the sludge with more NaOH dose and longer reaction time, and the degree of sludge disintegration within 30 min accounted for 45–76% of that for 24 h. When ultraso

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Pilli, Sridhar, Puspendu Bhunia, Song Yan, R. J. LeBlanc, R. D. Tyagi, and R. Y. Surampalli. "Ultrasonic pretreatment of sludge: A review." Ultrasonics Sonochemistry 18, no. 1 (2011): 1–18. http://dx.doi.org/10.1016/j.ultsonch.2010.02.014.

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Zheng, Li, Shui Yu Sun, Yan Bin Xu, et al. "Characteristics of Extracellular Polymeric Substances (EPS) and Enzymes during the Aerobic/anoxic Digestion of Sewage Sludge after Ultrasonic Pretreatment." Advanced Materials Research 347-353 (October 2011): 2008–14. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2008.

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In this paper, ultrasonic pretreatment was used to improve the aerobic/anoxic digestion of sewage sludge. The extracellular polymeric substances (EPS) and enzymes in the digestion were analysed to understand the mechanisms responsible for this improvement. The results showed that the ultrasonic pretreatment enhanced enzymatic activities and accelerated the solubilisation of the EPS. In addition, ultrasonic pretreatment could not only break flocs and release extracellular materials but also destroy cells and release intercellular materials. With ultrasonic pretreatment, the sludge reduction for

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Le, Tuan Minh, Phong Thanh Vo, Tuan Anh Do, et al. "Effect of Assisted Ultrasonication and Ozone Pretreatments on Sludge Characteristics and Yield of Biogas Production." Processes 7, no. 10 (2019): 743. http://dx.doi.org/10.3390/pr7100743.

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The effects of ultrasonic and ozonation pretreatments on organic solubilization, anaerobic biodegradability, and biogas production were elucidated in this study. Two pretreatment methods for batch anaerobic digestion for biogas recovery with the same material and experimental conditions were the focus for comparison. Anaerobic digestion experiments were conducted at ambient temperature with the solid retention time set to 25 days. The obtained results indicated that the soluble chemical oxygen demand increased from 0.344 without pretreatment to 1.023 and 1.228 g/L with ultrasound and ozone pre

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Stefanescu, Mihai, Laurentiu Razvan Dinu, and Costel Bumbac. "Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants." Revista de Chimie 70, no. 1 (2019): 301–3. http://dx.doi.org/10.37358/rc.19.1.6904.

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Ultrasonic treatment has become a modern method for removal of micropollutants and refractory compounds from water/wastewater and to improve biodegradation efficiency of biological activated sludge from wastewater treatment plants, in order to produce biogas. This paper is referring to the ultrasonic pretreatment of biological activated sludge, before anaerobic fermentation phase, to increase the amount of biogas generation. The pretreatment of biological sludge is based on two steps: alkaline digestion and ultrasonication. Ten minutes of alkaline condition (pH 9.5 - 10.5) followed by 10 minut

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Liu, Chun Hong, and Feng Wang. "The Study on the Sludge Anaerobic Digestion after the Ultrasonic Treatment." Applied Mechanics and Materials 295-298 (February 2013): 1740–44. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.1740.

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This paper studied on the energy efficiency of the sludge anaerobic digestion after the pretreatment of ultrasonic wave. Adding ratio of the sludge after the ultrasonic pretreatment was 30 %，50 %，70 % respectively, the retention time of the digested sludge was 27 d，20 d，16 d. The experiment results show that to treat the sludge by ultrasonic wave in 50-90s is considered to be suitable and the Energy Consumption is relatively less. The ultrasonic disruption rate is 3 %-4.2 % which met the requirement of the sludge anaerobic digestion technique. When the adding ratio of the sludge by the ultraso

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Dissertations / Theses on the topic "Ultrasonic pretreatment"

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Wang, Liqian. "Different Pretreatments to Enhance Biogas Production : A comparison of thermal, chemical and ultrasonic methods." Thesis, Högskolan i Halmstad, Ekologi och miljövetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-16190.

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Wu-Haan, Wei. "Evaluation of ultrasonic pretreatment on anaerobic digestion of biomass for methane production." [Ames, Iowa : Iowa State University], 2008.

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Montalbo-Lomboy, Melissa T. "Ultrasonic pretreatment for enhanced saccharification and fermentation of ethanol production from corn." [Ames, Iowa : Iowa State University], 2008.

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Apul, Onur Guven. "Municipal Sludge Minimization: Evaluation Of Ultrasonic And Acidic Pretreatment Methods And Their Subsequent Effects On Anaerobic Digestion." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610366/index.pdf.

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Sludge management is one of the most difficult and expensive problems in wastewater treatment plant operation. Consequently, &amp<br>#8216<br>sludge minimization&amp<br>#8217<br>concept arose to solve the excess sludge production by sludge pretreatment. Sludge pretreatment converts the waste sludge into a more bioavailable substrate for anaerobic digestion and leads to an enhanced degradation. The enhanced degradation results in more organic reduction and more biogas production. Therefore, sludge pretreatment is a means of improving sludge management in a treatment plant. Among pretreatment me

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Song, Xiaoxu. "Ultrasonic vibration - assisted pelleting and dilute acid pretreatment of cellulosic biomass for biofuel manufacturing." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/18946.

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Doctor of Philosophy<br>Department of Industrial & Manufacturing Systems Engineering<br>Zhijian Pei<br>Donghai Wang<br>In the U.S. and many other countries, the transportation sector is almost entirely dependent on petroleum-based fuels. In 2011, half of the petroleum used in the U.S. was imported. The dependence on foreign petroleum is a real threat to national energy security. Furthermore, the transportation sector is responsible for about 30% of U.S. greenhouse gas emissions and is growing faster than any other major economic sector. National energy security, economy, environment sustainabi

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Roebuck, Peter. "Ultrasonic Pretreatment: Impact on Solubilization, Biogas Production and Kinetics of Anaerobic Digestion of Conventional and Biofilm Waste Sludges." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37252.

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Anaerobic digestion is a useful method for stabilizing and reducing the waste activated sludges (WAS) produced from biological secondary treatment. Pretreatments can make anaerobic digestion more efficient. However, the study of anaerobic digestion and pretreatments is limited to a focus in treating conventional WAS. Therefore, WAS from three non-conventional municipal wastewater treatment systems, a rotating biological contactor (RBC), a lagoon, and a moving bed bioreactor (MBBR), were digested anaerobically to determine the sludges’ biogas potentials compared to a conventional WAS. All three

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Le, Ngoc Tuan. "Optimisation of sludge pretreatment by low frequency sonication under pressure." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0129/document.

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L'objectif de ce travail est d'optimiser le prétraitement de boues par des ultrasons de puissance (US) à basses fréquences, et en particulier d‘étudier pour la première fois des améliorations possibles en modifiant la pression hydrostatique, et la fréquence jusqu’à l’audible. Après un examen préliminaire des conditions du procédé (conditionnement des boues, type de boues, alcalinisation préalable, contrôle de la température), les effets des paramètres ultrasonores (puissance, intensité, énergie spécifique, fréquence) et de la pression hydrostatique ont été spécifiquement étudiés, séparément et

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Bispo, Diego Fonseca. "Efeito do pré-tratamento ultrassônico com K3PO4 para a produção de bio-óleo de vagem de feijão." Pós-Graduação em Química, 2018. http://ri.ufs.br/jspui/handle/riufs/7817.

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The aim of the present work was to study the effect of the ultrasonic pretreatment of cowpea bean pod biomass in the bio-oil production by pyrolysis. The biomass was pretreated during 0.5, 1.5, 03, 06, 08 and 12 hours with the addition of 20% (w/w) potassium phosphate. The biomass presented low oil and protein contents, 0.72% and 8.5%, respectively, and ash content of 4.38% for in natura biomass, being alkali and alkaline earth metals (K, Mg, Na, Ca) and phosphorus the main inorganic compounds. For the pretreated samples, the ash content was around 19.5% (w/w). The elemental analysis sh

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Efransjah, M. "Contribution à l'étude de la préservation du bois : Amélioration de l'imprégnabilité de l'épicéa (picéa SP.) par un pré-traitement bactérien et caractérisation du comportement du bois par l'utilisation des ultrasons." Nancy 1, 1988. http://www.theses.fr/1988NAN10032.

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On a sélectionné trois souches appartenant aux germes bacillus et pseudomonas, produisant les enzymes susceptibles de détruire les composés pecto-cellulosiques du torus des ponctuations. On a évalué l'augmentation de la perméabilité par la mesure de la rétention du PCP, de CUSO::(4) et de CCA, on a vérifié l'activité des procaryotes par meb. On a constaté une action positive des germes aussi bien en condition stérile qu'en condition semi-industrielle. L'application d'une technique ultrasonore a montré l'absence de modification significative des propriétés mécaniques selon l'axe longitudinal. O

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Nordmann, Vincent. "Caractérisation et impact des différentes fractions d’une biomasse lignocellulosique pour améliorer les prétraitements favorisant sa méthanisation : utilisation de la paille de blé comme biomasse lignocellulosique d’étude." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR15247/document.

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La méthanisation est un processus biologique de transformation des matières organiques libérant principalement du méthane et du dioxyde de carbone. Cette technologie connaît un essor important pour la production de biométhane, source d’énergie renouvelable. Elle présente cependant des rendements de dégradation faibles lorsque de la biomasse lignocellulosique est utilisée comme matière première. Pour optimiser son rendement, la paille de blé a été sélectionnée comme biomasse représentative et l’impact sur la méthanisation de chacune des fractions (extractibles, hémicelluloses, cellulose et lign

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Book chapters on the topic "Ultrasonic pretreatment"

1

Xia, Fu-jun. "Effect of ultrasonic pretreatment on the oil removal of ASP flooding produced water." In Medicine Sciences and Bioengineering. CRC Press, 2015. http://dx.doi.org/10.1201/b18418-120.

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"Eect of ultrasonic pretreatment on the oil removal of ASP flooding produced water." In Medicine Sciences and Bioengineering. CRC Press, 2015. http://dx.doi.org/10.1201/b18418-122.

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Mandal, D., N. Nath, and P. K. Sahoo. "Effect of ultrasonic pretreatment on the osmotic drying of ash gourd during Murabba processing." In Computer, Communication and Electrical Technology. CRC Press, 2017. http://dx.doi.org/10.1201/9781315400624-45.

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Rincón, B., L. Bujalance, F. G. Fermoso, A. Martín, and R. Borja. "Effect of Ultrasonic Pretreatment on Biomethane Potential of Two-Phase Olive Mill Solid Waste: Kinetic Approach and Process Performance." In Waste Management and Valorization. Apple Academic Press, 2017. http://dx.doi.org/10.1201/b19941-7.

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Conference papers on the topic "Ultrasonic pretreatment"

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Wongjewboot, Issara, Tawiwan Kangsadan, Sasithorn Kongruang, Vorakan Burapatana, and Pichit Pripanapong. "Ethanol production from rice straw using ultrasonic pretreatment." In 2010 International Conference on Chemistry and Chemical Engineering (ICCCE). IEEE, 2010. http://dx.doi.org/10.1109/iccceng.2010.5560351.

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Taha, Ruaa O., and Auday H. Shaban. "Effect of ultrasonic pretreatment on pyrolysis of microalgae." In TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5138513.

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Wongsorn, Chantraporn, Tawiwan Kangsadan, Sasithorn Kongruang, Vorakan Burapatana, and Pichit Pripanapong. "Ultrasonic pretreatment enhanced the enzymatic hydrolysis of rice straw." In 2010 International Conference on Chemistry and Chemical Engineering (ICCCE). IEEE, 2010. http://dx.doi.org/10.1109/iccceng.2010.5560352.

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Wenjin, Tong, Sun Shuiyu, Li Chuhua, Zheng Li, Xu Yanbin, and Yao Weiting. "Ultrasonic Pretreatment for Anoxic-Aerobic Digestion of Activated Sludge." In 2012 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM). IEEE, 2012. http://dx.doi.org/10.1109/cdciem.2012.202.

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Zheng, Li, Shui-yu Sun, Yan-bin Xu, Xing-xing Zhan, Bao-jian Liu, and Ming-Shan Cai. "Ultrasonic Pretreatment for Performance in Aerobic/Anoxic Sludge Digestion." In 2012 International Conference on Biomedical Engineering and Biotechnology (iCBEB). IEEE, 2012. http://dx.doi.org/10.1109/icbeb.2012.459.

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Song, Xiaoxu, Meng Zhang, Z. J. Pei, and Donghai Wang. "Ultrasonic-Assisted Dilute Acid Pretreatment of Poplar Wood Biomass for Biofuel Manufacturing: A Preliminary Study." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9340.

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For the first time, this study demonstrated that the efficiency of enzymatic hydrolysis of poplar wood biomass was drastically enhanced after being pretreated with ultrasonic-assisted dilute acid pretreatment comparing to dilute acid pretreatment only. Three levels of ultrasonic power (0%, 30%, and 70%) were used in pretreatment. Approximately 10–40% improvement in the sugar yield was attained by using ultrasound-assisted dilute acid pretreatment for 15 min. XRD analysis revealed that poplar wood biomass pretreated ultrasonically had lower biomass crystallinity than that pretreated with dilute

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Kennedy, Elizabeth, Pengfei Zhang, Qi Zhang, Z. J. Pei, and Donghai Wang. "Effects of Ultrasonic Vibration-Assisted Pelleting on Sugar Yield in Biofuel Manufacturing With Different Pretreatment Methods." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1143.

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There are many concerns taking place due to the reliability and sustainability of petroleum-based liquid transportation fuels. The importance of finding an alternative fuel source to the petroleum-based fuels is in high demand. One promising alternative is cellulosic biofuels that offer numerous benefits for the environment. However, there are some obstacles in the way of manufacturing the cellulosic biofuels at a large scale and doing so cost effectively. One obstacle is the low sugar yield of biomass in enzymatic hydrolysis, leading to low efficiency in biomass-biofuel conversion and thus hi

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Melissa Montalbo-Lomboy, Samir Kumar Khanal, J (Hans) van Leeuwen, et al. "Ultrasonic Pretreatment of Corn Slurry in Batch and Continuous Systems." In 2009 Reno, Nevada, June 21 - June 24, 2009. American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.27368.

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Zhang, Qi, P. F. Zhang, Timothy Deines, et al. "Ultrasonic Vibration-Assisted Pelleting of Sorghum Stalks: Effects of Pressure and Ultrasonic Power." In ASME 2010 International Manufacturing Science and Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/msec2010-34173.

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Cellulosic biofuels can be used to replace traditional liquid transportation fuels. Cellulosic biomass is feedstock in manufacturing of cellulosic biofuels. However, the low density of cellulosic biomass feedstock hinders large-scale and cost-effective manufacturing of cellulosic biofuels. Another bottleneck factor in manufacturing of cellulosic biofuels is the low efficiency of the enzymatic hydrolysis of cellulosic biomass materials resulting in a low sugar yield. Ultrasonic vibration-assisted (UV-A) pelleting can increase the density of cellulosic biomass feedstocks via combined effects of

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Guangyi Liu, Qingliang Zhao, Kai Hu, and Xiudong Zhou. "Notice of Retraction: Effect of ultrasonic pretreatment on disintegration of dewatered sewage sludge." In 2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC 2011). IEEE, 2011. http://dx.doi.org/10.1109/aimsec.2011.6009644.

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