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Dissertations / Theses on the topic 'Filter clogging'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Biswas, Sharbaree. "Study of cohesive soil-granular filter interaction incorporating critical hydraulic gradient and clogging." Access electronically, 2005. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060221.100311/index.html.

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2

Sliwinski, Kristoffer. "A Machine Learning Approach to Predictively Determine Filter Clogging in a Ballast Water Treatment System." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263931.

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Since the introduction of the Ballast Water Management Convention, ballast water treatment systems are required to be used on ships for processing the ballast water to avoid spreading bacteria or other microbes which can destroy foreign ecosystems. One way of pre-processing the water for treatment is by straining the water through a filtration unit. When the filter mesh retains particles, it begins to clog and could potentially clog rapidly if the concentration of particles in the water is high. The clog jeopardises the system. The thesis aims at investigating if machine learning through neura

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3

Andersson, Karolina. "Igensättning av långsamfilter i Östby vattenverk i Kramfors : studie av påverkande faktorer." Thesis, Uppsala University, Department of Earth Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9281.

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<p>Östby waterworks in the community of Kramfors has since 2003 had problems of fast clogging of the slow sand filters. As the clogging appears more often, they must be cleaned more frequently which has made the drinking water preparation difficult. Wintertime it has sometimes been impossible to clean the filters which has led to their closing and this has influenced the water quality negatively.</p><p>The waterworks is a surface waterworks which takes its raw water from the lake Sjöbysjön. The water is flocculated and filtered in a contact filter with the flocculent EKOFLOCK 91. Thereafter it

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4

Mitchell, Ged. "An investigation into the factors affecting the behaviour of Highway Filter Drains, with a particular emphasis on the Scottish Trunk Road Network." Thesis, Abertay University, 2017. https://rke.abertay.ac.uk/en/studentTheses/768779b0-366a-434d-a28d-e9313885d37b.

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Approximately 1500 km (43%) of the strategic Scottish trunk road network drainage asset takes the form of Highway Filter Drains (HFDs). However, despite their popularity, they are prone to clogging, therefore they have an estimated operational life-cycle of ten-years. This research was undertaken to investigate the complex inter-relationship between catchment characteristics, road dynamics and the physical characteristics of the road to establish the key factors that govern the generation and spatial variability of Road-Deposited-Sediment (RDS). The aim being to establish the impact RDS Partic

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5

Pinto, Marinaldo Ferreira. "Desenvolvimento e avaliação de um sistema de filtragem com reversão de fluxo de alta frequência." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/11/11143/tde-12072013-082758/.

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A obstrução de emissores tem sido um entrave para a microirrigação. Porém, tem-se notado poucos estudos relativos ao desenvolvimento de equipamentos que auxiliam na prevenção da obstrução de emissores nos últimos anos. Os estudos realizados nesta linha estão geralmente ligados à caracterização dos sistemas em uso. O objetivo deste trabalho foi desenvolver um sistema de filtragem com reversão automática de fluxo, de alta frequência. O sistema foi concebido para operar com água de baixa qualidade, com inversão de fluxo e limpezas automáticas e com volume mínimo de água para realização das limpez

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6

Boudhan, Rachid. "Performance of pulse-jet bag filter regarding particle removal for nano-waste incineration conditions." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2017. http://www.theses.fr/2017IMTA0022/document.

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Les performances de filtration d’un filtre à manche vis-à-vis de particules submicroniques et nanométriques ont été évaluées à l’échelle du laboratoire durant plusieurs cycles de colmatage/décolmatage. La distribution granulométrique des particules (aérosol de combustion) était représentative de celle rencontrée en incinération de nano-déchets en sortie de chambre de combustion à l’échelle du laboratoire. Le filtre à manche opérait en conditions réalistes, représentatives de celles rencontrées dans les lignes de traitement des fumées d’incinération de déchets en termes de température, humidité

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7

Gervais, Pierre-Colin. "Études expérimentale et numérique du colmatage de filtre plissé." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0007/document.

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L'utilisation de filtres plissés dans le domaine du traitement de l'air est extrêmement fréquente en raison de leur simplicité d'utilisation et de maintenance. Néanmoins, au cours du colmatage, la perte de charge augmente considérablement avec le dépôt de particules. Par conséquent le débit de filtration n'est plus maintenu et une détérioration des médias peut se produire. Il est essentiel de caractériser cette évolution en fonction des conditions opératoires pour mieux concevoir ces équipements. Les travaux ont consisté en une étude expérimentale de l'influence des conditions opératoires sur

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8

Japuntich, Daniel A. "Clogging of fibrous filters with monodisperse aerosols." Thesis, Loughborough University, 1991. https://dspace.lboro.ac.uk/2134/7132.

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The clogging of fibrous air filters by solid aerosol particles in the inertial interception capture range was experimentally and theoretically investigated. Flat filters were loaded to particle filter cake formation at 0.10 m/s filter face velocity with monodisperse aerosols. An evaporator-condenser aerosol generator capable of producing a stable 0.6 kg/hr product of monodisperse, solid aerosols in the range 1 to 5 micrometers aerodynamic diameter was designed, fabricated, and optimized. The output aerosol was introduced into a vertical challenge duct, where the mass concentrations upstream an

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9

Le, Maout-Alvarez Coralie. "Étude expérimentale des effets chimiques sur le colmatage des filtres dans l’industrie nucléaire." Electronic Thesis or Diss., Université de Lorraine, 2023. http://docnum.univ-lorraine.fr/ulprive/DDOC_T_2023_0015_ALVAREZ.pdf.

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Lors d'un accident de type APRP (Accident de Perte du Réfrigérant Primaire) survenant dans réacteur nucléaire à eau pressurisé (REP), des débris sont générés et ils peuvent être partiellement transportés jusqu'aux filtres des systèmes de secours RIS-EAS des puisards situés dans le fond de l'enceinte de confinement du réacteur. Ces débris peuvent contribuer au colmatage « physique » des filtres. Un autre effet dit « effet chimique » correspond à l'apport de cations en solution de par la corrosion des débris (fibres d'isolant) et la possible corrosion de surfaces métalliques présentes dans le bâ

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10

Grippari, Florence. "Caractérisation et filtration des aérosols nonastructurés : application aux fumées de projection thermique des métaux." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0158/document.

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Cette étude porte sur la filtration des particules métalliques contenues dans les fumées de métallisation. Des retours d'expériences spécifiques aux dépoussiéreurs filtrants les fumées de métallisation témoignent d'un colmatage des filtres très rapide ainsi que de l'inefficacité des techniques de décolmatage pneumatique habituellement utilisées. Il en résulte une durée de vie des éléments filtrants très réduite. L'objectif de cette étude est de caractériser le colmatage puis le décolmatage afin d'améliorer les performances des dépoussiéreurs à cartouches filtrantes vis-à-vis des fumées de méta

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11

Zhao, Yaqian. "Interactions of polymer and an alum sludge during conditioning and dewatering." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367045.

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12

Eker, Ömer F. "A hybrid prognostic methodology and its application to well-controlled engineering systems." Thesis, Cranfield University, 2015. http://dspace.lib.cranfield.ac.uk/handle/1826/9269.

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This thesis presents a novel hybrid prognostic methodology, integrating physics-based and data-driven prognostic models, to enhance the prognostic accuracy, robustness, and applicability. The presented prognostic methodology integrates the short-term predictions of a physics-based model with the longer term projection of a similarity-based data-driven model, to obtain remaining useful life estimations. The hybrid prognostic methodology has been applied on specific components of two different engineering systems, one which represents accelerated, and the other a nominal degradation process. Clo

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13

Kampel, Guido. "Mathematical Modeling of Fines Migration snd Clogging in Porous Media." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19764.

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Mathematical Modeling of Fines Migration and Clogging in Porous Media Guido Kampel 87 Pages Directed by Dr. Guillermo H. Goldsztein A porous medium is a material that contains regions filled with fluid embedded in a solid matrix. These fluid filled regions are called pores or voids. Suspensions are fluids with small particles called fines. As a suspension flows through a porous material, some fines are trapped within the material while others that were trapped may be released. Filters are an example of porous media. We model filters as networks of channels. As a suspension flows across th

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14

Kampel, Guido. "Mathematical modeling of fines migration and clogging in porous media." Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19764.

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Thesis (Ph.D)--Mathematics, Georgia Institute of Technology, 2008.<br>Committee Chair: Goldsztein, Guillermo; Committee Member: Dieci, Luca; Committee Member: McCuan, John; Committee Member: Santamarina, Juan; Committee Member: Zhou, Haomin.

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15

Hutchinson, Adam Scott. "Estimation and quantification of injection well clogging, Tucson, Arizona." Thesis, The University of Arizona, 1993. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1993_584_sip1_w.pdf&type=application/pdf.

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16

Penicot-Bauge, Pascale. "Étude de la performance de filtres à fibres lors de la filtration d'aérosols liquides ou solides submicroniques." Vandoeuvre-les-Nancy, INPL, 1998. http://docnum.univ-lorraine.fr/public/INPL_T_1998_PENICOT_BAUGE_P.pdf.

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Cette étude concerne la filtration par un filtre à fibres d'un gaz contaminé soit par des particules solides submicroniques soit par un aérosol liquide submicronique. Après une synthèse de l'ensemble des travaux réalisés antérieurement, nous nous intéressons dans un premier temps à caractériser les différents filtres (très haute efficacité et moyenne efficacité) mis à notre disposition. Les résultats expérimentaux relatifs à la filtration de particules solides nous ont permis de détailler le processus de colmatage et de décrire en particulier l'évolution de la perte de charge, de l'efficacité,

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17

Suszek, Floriano Luiz. "Quimigação à base de ácido fosfórico e hipoclorito de cálcio na irrigação por gotejamento." Universidade Estadual do Oeste do Parana, 2014. http://tede.unioeste.br:8080/tede/handle/tede/194.

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Made available in DSpace on 2017-05-12T14:47:03Z (GMT). No. of bitstreams: 1 Floriano_ Luiz Suszek.pdf: 3588019 bytes, checksum: e859f1f39b850d0e1aa1a29ddfd00135 (MD5) Previous issue date: 2014-01-03<br>The use of fresh water available in the world needs to be more efficient, and localized irrigation systems such as drip irrigation show high efficiency for water use in crop irrigation. In the city of Salto do Lontra, state of Paraná, Brazil, several producers use drip irrigation in fruit growing and horticulture, accompanied by a family farming project developed in the region.One major probl

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18

Solé, Torres Carles. "Underdrain design and operational conditions in sand media filters using reclaimed effluents in drip irrigation systems." Doctoral thesis, Universitat de Girona, 2020. http://hdl.handle.net/10803/669332.

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At present, agriculture is the human activity which requires more volume of water. Given the importance and scarcity of this resource, the efficient use of water has become a priority. On one hand, if possible, it is necessary to use irrigation systems such as microirrigation that use water more efficiently. On the other hand, treated wastewater reuse by agriculture helps to have the necessary water at the same time that it allows to release water of higher quality for other uses. In this sense, microirrigation is the safest system to apply reclaimed effluents. However, its main problem is emi

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19

Dikinya, Oagile. "The effects of self-filtration on saturated hydraulic conductivity in sodic sandy soils." University of Western Australia. School of Earth and Geographical Sciences, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0051.

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[Truncated abstract] Self-filtration is here defined as particle detachment and re-deposition causing re-arrangement of the particles and therefore pore space which affects water flow in soil by decreasing hydraulic conductivity. This is of particular important in soils which are susceptible to structural breakdown. The objective of this thesis was to examine the dynamics of the self-filtration process in sodic sandy soils as affected by ionic strength and soil solution composition. The temporal changes of hydraulic conductivity and the elution of fine particles from soil columns were used as

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20

Weng, Zhen-Xuan, and 翁振軒. "Using Fuzzy Theorem to Evaluate the Clogging of Geotextile-Filter." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/73739620884455356454.

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21

YU, LIN CHIAO, and 林巧于. "Experimental study on the clogging phenomena of the filter layer in gravel pile." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/68066558868827563828.

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22

Tung, Kuo-Lun, and 童國倫. "Study on the Mechanisms of Filtrations for Deformable Particles and Clogging of Filter Cloths." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/06125028239588679644.

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博士<br>國立臺灣大學<br>化學工程學系<br>86<br>As a first step to study the mechanism of filtration of deformable particles, the compression and deformation behaviors of calcium-alginate gel particles bed under mechanical loading and hydraulic drag in a particles bed were conducted in the first part of this study. Experimental results show that progressive decreases in the bed height, volume, and porosity of the bed took place gradually as the pressure on the bed was increased, with the particles being deformed into fla

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23

Hsuan-Chen, Po, and 陳伯壎. "Algae removal and clogging through the rapid sand filter in Liyutan Water Ttreatment Plant；a piot study." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/66077469929775332526.

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碩士<br>國立中興大學<br>環境工程學系所<br>99<br>Although the average rainfall in Taiwan is higher than lots of country, water resources in Taiwan are still significantly insufficient because of the landform and climate. To solve this problem, our government built reservoirs to supply sufficient water resource. Human activity caused serious eutrophication in our reservoirs and lots of algae growth rapidly in short-term, Algae were impacted the water treatment processes and reduced the quality of drinking water. Recently a large amount of algae has been found at specific periods (2008.11~12、2009.03)was set u

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24

Jhang, Jia-yuan, and 張嘉元. "Filter clogging in Pin-Chen water treatment plant during water intake from intake well in Shimen reservoir." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/87928286005488058195.

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碩士<br>國立中央大學<br>環境工程研究所<br>100<br>Due to extreme high turbidity during typhoons or heavy rains, which resulted in difficulties in potable water treatment, the water intake well to draw water from upper levels of the reservoir was built in the Shihmen reservoir. After drawing water from the intake well, it was found that the rapid sand filter was severely clogged, the head loss increased dramatically, and the filtration run-time was seriously shortened. The objectives of this study were first to investigate filter clogging in Ping-Jan Water Treatment Plant while intake water from the water inta

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25

Sykes, Caitlin Elizabeth. "A Risk-based Evaluation of the Long-term Performance of Stormwater Infiltration Facilities." Thesis, 2009. http://hdl.handle.net/1807/18893.

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Infiltration facilities are source control mechanisms that are implemented in urban developments with reduced natural permeable surfaces. Despite the development of design criteria for infiltration facilities, these systems continue to fail due to headloss development, overflow, or chemical breakthrough. The limited research on the long-term performance of these systems has emphasized the role of physical filtration mechanisms within porous media filters to address concerns surrounding system failure, namely filter clogging. A continuous macroscopic depth filtration model was developed to inve

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