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Dissertations / Theses on the topic 'Biofield treatment'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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1

Haddad, Peter Alexander. "Biofilm Treatments with Electric Currents." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/30947.

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The Problem: Biofilms are a community of bacteria that cause infections which are resistant to the immune system and antimicrobial treatments, posing a significant threat for patients with implantable and indwelling medical devices. Purpose: The purpose of this research is to effectively treat biofilms utilizing electric currents assisted by antibiotics. Method: Evaluated the impact of direct electric current with or without vancomycin against Staphylococcus epidermidis biofilms. Results: (1) Electric current reduced the S. epidermidis biofilm and (2) increased the effectiveness of vancomycin.
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2

Schopf, Alexander Gerald. "Advancement of Nitrifying Wastewater Treatment Design and Operation." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/41961.

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There is an urgent need to develop ammonia removal treatment systems for municipal and industrial wastewater treatment due to the increasingly stringent ammonia effluent discharge regulations implemented by Canada, the United States, and the European Union. The objective of this dissertation is to develop new understanding and advance the current design and operation of total ammonia nitrogen (TAN) removal via the moving bed biofilm reactor technology (MBBR) for municipal and industrial wastewaters. The first specific objective is to develop a passive, low operationally intensive, efficient an
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3

Murray, Simon Thomas. "Applications of membrane aerated biofilm reactors for wastewater treatment." Thesis, Queen's University Belfast, 2016. https://pure.qub.ac.uk/portal/en/theses/applications-of-membrane-aerated-biofilm-reactors-for-wastewater-treatment(af60a6ed-09b7-4b95-8730-d3de83b3876e).html.

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Despite being the subject of peer reviewed research since the mid-1980s, the conservative nature of the wastewater treatment industry means that the commercial application of membrane aerated biofilm reactors has not realized the potential that the published research demonstrates. The early research demonstrated the ability of membrane aerated biofilm reactors to achieve good levels of pollutant removal from various types of wastewater, but also exposed several weaknesses of the technology (i.e. cost of membranes, control of biofilm thickness) which have prevented the concept of MABfRs being d
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4

Sherry, Leighann. "Evaluating Candida albicans biofilm formation and novel antifungal treatment." Thesis, University of Glasgow, 2014. http://theses.gla.ac.uk/5597/.

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Candida biofilms have become an increasingly important clinical problem. The widespread use of antibiotics, frequent use of indwelling medical devices, and a trend towards increased patient immuno-suppression has resulted in a creation of opportunity for clinically important yeasts to form biofilms. Whilst there is growing evidence of the importance of Candida biofilms in clinical medicine, not all clinical isolates are able to form biofilms. There is therefore a fundamental gap in understanding exactly what drives biofilm formation and its clinical implications. These structures have become i
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5

di, Biase Alessandro. "Industrial wastewater treatment with anaerobic moving bed biofilm reactor." American society of civil engineers, 2016. http://hdl.handle.net/1993/31706.

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The overall goal of the thesis was to develop and optimize the moving bed biofilm reactor technology under anaerobic conditions. The thesis work was divided into two different series of experiments. Hence, at first, the reactor start-up on synthetic substrate was evaluated and it was proven that the anaerobic moving bed biofilm reactor technology could successfully treat concentrated wastewater. Subsequently, a study on Fort Garry Brewery wastewater was conducted to optimize the process for a typical North American industrial wastewater. The aim was successfully achieved and a potential design
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6

Strachan, Laura Fay. "The Extractive Membrane Bioreactor : flux enhancement and biofilm control." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266892.

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7

Evans, Emily Amaya. "Ultrasonic reflectometry for monitoring biofilm growth on water treatment membranes." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/cr/colorado/fullcit?p1427775.

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8

Mattei, Maria Rosaria. "Mathematical modelling of multispecies biofilms for wastewater treatment." Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1182/document.

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Cette thèse s'intéresse à l'application d'un modèle mathématique unidimensionnel de formation et de croissance de biofilms multi-espèces. Le modèle se compose d'un système d'équations non linéaires aux dérivées partielles hyperboliques, décrivant la croissance d'espèces microbiennes dans le biofilm, et un système d'équations semi-linéaires aux dérivées partielles paraboliques, qui régit la diffusion de substrat de la phase aqueuse vers la matrice du biofilm. L'ensemble conduit à un problème de valeur limite libre, essentiellement hyperbolique. Dans une première étude, l'analyse et la simulatio
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9

Tian, Xin. "Ammonia Removal: Biofilm Technologies for Rural and Urban Municipal Wastewater Treatment." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41163.

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The new Canadian federal wastewater regulations, which restricts the release of ammonia from treated wastewaters, has resulted in upgrade initiatives at many water resource recovery facilities across the country to reduce the discharge of ammonia into our natural waters. The objective of this dissertation is therefore to investigate and optimize the performance of two attached growth technologies for rural and peri-urban/urban municipal ammonia removal. In particular, the first specific objective of this dissertation is to investigate the performance and microbial response of the BioCord techn
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10

Ivanovic, Igor. "Application of biofilm membrane bioreactor (BF-MBR) for municipal wastewater treatment." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for vann- og miljøteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13395.

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The biofilm membrane reactor (BF-MBR) is a wastewater treatment system that combines biological wastewater treatment with a biofilm process and with membrane separation for clarification and purification of biologically treated wastewater. Work in this thesis is experimentally based on laboratory pilot scale systems specially built, developed and modified for the research purposes in this thesis. The work in this thesis is presented through six main themes (research chapters (RC)): RC1: Overview of previous research on knowledge on particle separation in a movingbed-biofilm reactor (MBBR) proc
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11

Perera, Kuruppu Arachchige Kalyani, University of Western Sydney, of Science Technology and Environment College, and of Science Food and Horticulture School. "Characteristics of a developing biofilm in a petrochemical wastewater treatment plant." THESIS_CSTE_SFH_Perera_K.xml, 2003. http://handle.uws.edu.au:8081/1959.7/777.

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A study was undertaken to investigate developing biofilms in a petrochemical wastewater treatment plant encompassing the architecture, microflora and the chemical nature of the matrix. Biofilms were developed on glass slides immersed in the activated sludge unit and analysed at known time intervals using a range of techniques. Initially, biofilms were investigated using conventional and emerging microscopic approaches to select a suitable technique. Scanning Confocal Laser Microscopy (SCLM) allowed visualisation of biofilms in situ with minimal background interference and non-destructive and o
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12

Ibrahim, Lamia. "The use of bacteriophage for the treatment of biofilm-associated infection." Thesis, University of Brighton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406838.

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13

Halstead, Fenella. "Developing novel topical antimicrobial agents for the treatment of biofilm infections." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/101063/.

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Background Bacterial wound infections (especially those involving biofilms) represent a major challenge to healthcare, and are responsible for significant morbidity and mortality. Owing to the rise in antimicrobial resistance, there is renewed interest in alternative antimicrobial agents for treatment of wound infections, where prevention of colonisation largely relies on topically applied biocides. Objectives The aim was to investigate the antibacterial activity of acetic acid (AA), following on from preliminary testing, and small-scale use on burns patients. This led on to the testing of add
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14

Sun, Yewei. "Advanced Biofilm and Aerobic Granulation Technologies for Water and Wastewater Treatment." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/97591.

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Attached growth biological processes offer advantages over traditional water purification technologies through high biomass retention, easy sludge-water separation, multiple multispecies synergies in proximity, resilience to shock loading, low space requirements, and reactor operational flexibility. Traditionally, attached growth refers to biofilms that require abiotic carrying media for bacteria to attach and grow on. While biofilms have been broadly applied in wastewater treatment, its potential for potable reuse or stormwater treatment has not been well studied. The treatment trains of pre-
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Perera, Kuruppu Arachchige Kalyani. "Characteristics of a developing biofilm in a petrochemical wastewater treatment plant." Thesis, View thesis, 2003. http://handle.uws.edu.au:8081/1959.7/777.

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A study was undertaken to investigate developing biofilms in a petrochemical wastewater treatment plant encompassing the architecture, microflora and the chemical nature of the matrix. Biofilms were developed on glass slides immersed in the activated sludge unit and analysed at known time intervals using a range of techniques. Initially, biofilms were investigated using conventional and emerging microscopic approaches to select a suitable technique. Scanning Confocal Laser Microscopy (SCLM) allowed visualisation of biofilms in situ with minimal background interference and non-destructive and o
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16

Perera, Kuruppu Arachchige Kalyani. "Characteristics of a developing biofilm in a petrochemical wastewater treatment plant /." View thesis, 2003. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20060516.122048/index.html.

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Thesis (Ph.D.) (Biological Sciences) -- University of Western Sydney, 2003.<br>"Thesis submitted for the Degree of Doctor of Philosophy, University of Western Sydney, July 2003". Includes bibliography : leaves 253 - 276.
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17

Mann, Allan. "A comparison of floating and sunken media biological aerated filters (BAF)." Thesis, Cranfield University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359948.

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18

Boyle, Kellie. "Optimization of Moving Bed Biofilm Reactor (MBBR) Operation for Brewery Wastewater Treatment." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39147.

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The significant rise in the number of micro-breweries in North America has increased the need for efficient on-site industrial wastewater facilities. Brewery wastewater is considered to be a high strength food industry wastewater with high variability in terms of both organic and hydraulic loading. Small breweries require cost-effective, reliable, and simple to operate treatment technologies to properly manage their brewery wastewaters. Moving bed biofilm reactor (MBBR) technology has shown promise at the lab-scale and full-scale with respect to brewery effluent treatment. MBBR systems have th
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19

Radianingtyas, Helia. "Development of a biofilm reactor process for the treatment of 4-chloroaniline." Thesis, University of Kent, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314266.

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20

Tsitouras, Alexandra. "Sequencing Batch Moving Bed Biofilm Reactors for Treatment of Cheese Production Wastewater." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42126.

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Discharging cheese production wastewater with high concentrations of organics and nutrients is detrimental to receiving aquatic systems, as the release of these deleterious substances cause oxygen depletion, and eutrophication respectively. On-site treatment of cheese production wastewater requires the removal of high concentrations of organics and nutrients with a small land footprint to meet regulations. There is therefore a critical need for compact, high-rate, cost-effective wastewater technologies such a as the moving bed biofilm reactor (MBBR). Although MBBR systems have been well establ
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21

Son, Darin. "Dairy Manure Flushwater Treatment by Algae Raceway Ponds and Aerated Biofilm Reactors." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2222.

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Nitrogen removal technologies can help dairy industries meet their nutrient management needs. This thesis investigated two separate treatment technologies for total ammonia nitrogen (TAN) removal: algae raceway ponds and aerated biofilm reactors. Six 1000- liter algae raceway ponds and four 1000-liter tote tanks, each equipped with 10 sheets of nonwoven geotextile (i.e., thermally bonded or needle-punched) biofilm substrate, were used to treat the effluent from a flush dairy in central coastal California (TAN = 251 mg/L, cBOD5 = 204 mg/L). For the algae raceway ponds (TAN loading rate = 7 - 35
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22

Abdulgader, Mohamed E. Essa. "Development of Flexible Fibre Biofilm Reactors for Treatment of Milk Processing Wastewater." Thesis, Griffith University, 2011. http://hdl.handle.net/10072/366653.

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Food processing industries use considerable amounts of fresh water for their industrial purposes. These industries generate large quantities of high strength organic wastewaters which are usually biodegradable and amenable to biological treatment systems. Numbers of biological methods are still in use for the treatment of food processing wastewaters, either anaerobic or aerobic systems. In this research, the performance using newly developed laboratory scale sequencing batch flexible fibre biofilm reactor (SB-FFBR), single stage flexible fibre biofilm reactor (SS-FFBR) and newly developed mul
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23

Ricker, Erica Noyes Bader. "The synergistic effects of orthogonal biofilm mitigation strategies: thermal and antibiotic treatment." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5613.

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Upon forming a biofilm, bacteria undergo several changes that prevent them from being eradicated with antimicrobials alone. These biofilms manifest as persistent infections and biofouling in the medical and industrial world, respectively, constituting an ongoing medical crisis and creating a huge financial burden. Biofilms on implanted medical devices cause thousands of patients each year to undergo multiple surgeries to explant and replace the implant, driving billions of dollars in increased health care costs due to the lack of viable treatment options for in situ biofilm eradication. Heat h
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24

Carini, Diane. "Treatment of industrial wastewater using chemical-biological sequencing batch biofilm reactor (SBBR) processes /." [S.l.] : [s.n.], 1999. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13431.

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25

Szatkowska, Beata. "Treatment of ammonium-rich wastewater by partial nitritation/Anammox in a biofilm system /." Stockholm, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-378.

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26

Zhang, Tong, and 張彤. "Characteristics of sulfate-reducing bacteria biofilm and other microbial communities in wastewater treatment." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31242686.

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27

Zhang, Tong. "Characteristics of sulfate-reducing bacteria biofilm and other microbial communities in wastewater treatment." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2327279x.

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28

Christenson, Logan. "Algal Biofilm Production and Harvesting System for Wastewater Treatment with Biofuels By-Products." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/994.

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Excess nitrogen and phosphorus in discharged wastewaters can lead to downstream eutrophication, ecosystem damage, and impaired water quality that may affect human health. Chemical-based and physical-based technologies are available to remove these nutrients; however, they often consume significant amounts of energy and chemicals, greatly increasing treatment costs. Algae are capable of removing these pollutants through biomass assimilation, and if harvested, can be utilized as a feedstock for biomethane or biodiesel production. Currently, difficulties in harvesting, concentrating, and dewateri
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29

Kane, Jason Patrick. "Water quality performance of a reciprocating biofilm reactor for treatment of dairy wastewater." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/439.

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Removal of organic matter and nitrogen from concentrated wastewaters is often a complex and costly process that is rarely implemented in animal agriculture, such as the dairy industry, despite regulatory pressures and the high cost of land for manure application in some regions. This paper describes results from the first implementation for treatment of dairy farm wastewater of the relatively simple ReCip® technology. ReCip® typically consists of two basins filled with rock aggregate through which wastewater is flowed in series. One basin is full of wastewater and the other is only partiall
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30

Tran, Anh Hien. "Bacterial biofilm treatment and in situ antimicrobial coatings for orthopaedic implant retention surgery." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/207850/1/Anh%20Hien_Tran_Thesis.pdf.

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Bacterial biofilms are involved in most device-associated infections. This thesis has developed an in-situ method to treat biofilm and a coculture for testing new antimicrobial biomaterials. We used surface immobilisation to promote Alpha-amylase and silver ion’s disruption of S. aureus biofilms. The treatment also helped coating the surface with silver particles to prevent recurrence. We also formed a coculture of S. aureus and pre-osteoblastic cells and showed that bacteria preferentially attached to the osteoblasts and became more resistant to antibiotic treatment. Overall, this thesis has
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31

Bennett, Molly Marie Bennett. "Design, Fabrication, and Characterization of Electroceutical Bandages for Treatment of Chronically Infected Wounds." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462837586.

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32

Tran, Thi Minh Tam. "Developing New Strategies for Treatment of Pseudomonas Aeruginosa Infection." Thesis, Griffith University, 2022. http://hdl.handle.net/10072/419901.

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Pseudomonas aeruginosa (P. aeruginosa) is a pathogenic bacterium causing devastating acute and chronic infections among populations with compromised immune systems. Its highly notorious persistence in clinical settings is attributed to the ability to form antibiotic-resistant biofilms. Biofilm is an architecture built mostly by autogenic extracellular polymeric substances that functions as a scaffold to encase the bacteria together on surfaces, protect them from environmental stresses, evade host immune system, and thereby facilitate long-term persistence. Current antibiotics cannot penetrate
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33

Szatkowska, Beata. "Performance and control of biofilm systems with partial nitritation and Anammox for supernatant treatment." Doctoral thesis, Stockholm : Mark- och vattenteknik, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4462.

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34

Miller, James Kyle. "Mathematical Modeling of Pseudomonas aeruginosa Biofilm Growth and Treatment in the Cystic Fibrosis Lung." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1342031801.

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35

Li, Qianqian. "Pilot-scale plant application of membrane aerated biofilm reactor (MABR) technology in wastewater treatment." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235991.

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This membrane aerated biofilm reactor (MABR) pilot project was performed at Ekeby wastewater treatment plant (WWTP) in Eskilstuna, Sweden. This plant is facing a future challenge of effluent TN &lt; 10mg/L according to the new standard and the growing population, where higher treatment capacity is needed. The MABR as a newly invented technology, is chosen as a promising countermeasure towards the challenge, because of the simultaneous nitrification and denitrification of this technology. By the time of reporting, this project is still on-going, and more information will be reported later in se
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36

Andersson, Sofia. "Characterization of Bacterial Biofilms for Wastewater Treatment." Doctoral thesis, KTH, Miljömikrobiologi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10118.

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Research performed at the Division of Environmental Microbiology has over the last years resulted in the isolation of possible bacterial key-organisms with efficient nutrient removal properties (Comamonas denitrificans, Brachymonas denitrificans, Aeromonas hydrophila). Effective use of these organisms for enhanced nutrient removal in wastewater treatment applications requires the strains to be retained, to proliferate and to maintain biological activity within theprocess. This can be achieved by immobilization of the organisms using an appropriate system.Two putative immobilization systems, ag
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37

Castro, Pedro Coimbra de Almeida Osório de. "Biofilmes em endodontia." Master's thesis, [s.n.], 2014. http://hdl.handle.net/10284/4386.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária<br>Introdução: Um biofilme é uma comunidade estruturada de células bacterianas envolvidas numa matriz constituída por substâncias poliméricas e aderido a uma superfície sólida. Esta comunidade permite um modo protegido de crescimento que permite a sobrevivência dos constituintes celulares em ambientes hostis e fornece uma tolerância aumentada a agentes antimicrobianos. Objectivo: Tentar compreender a forma como os constituintes celulare
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38

Wusiman, Apiredan. "Treatment of Small-Scale Brewery Wastewater: Anaerobic Biochemical Methane Potential (BMP) Trials and Moving Bed Biofilm Reactor (MBBR) Field Study." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42248.

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As the microbrewery industry expands, disposal of brewery wastewater is becoming more of a concern, both for brewery operators and for local municipal wastewater authorities. Brewery wastewater is characterized as containing high strength organics and high variability in both organic and hydraulic loading. This high variability increased the challenge of treating brewery wastewater properly. Therefore, it is significant for optimizing the operation condition for the small-scale wastewater treatment system. This study conducted a batch study and a field study for optimizing a craft brewery on-s
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39

Eriksson, Louise. "En mikrobiologisk studie av Tranås nya vattentäkt." Thesis, KTH, Skolan för bioteknologi (BIO), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-49105.

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40

Klarström, Diana. "En Moving Bed Biofilm Reactor som försteg till en Långtidsluftad Aktivslam : Syresättningsförmågan och syrebehovets påverkan på energibehovet." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-78789.

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The pulp and paper mill requires a lot of water during the production. Stora Enso Skoghall requires about 33m3 of water for 2204 lb produced carbon or paper. Before the wastewater returns to the recipient, the water must be purified from organic material. Organic material is naturally found in wood, and if a high level of organic material is added to the recipient it will lead to deficiency of oxygen in lakes. In order to avoid deficiencies of oxygen in lakes, the wastewater must go through a biological treatment, Stora Ensos biological treatment is consisting a long-term aerated active sludge
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Lo, Yi-Ping. "A new individual-based modelling framework for bacterial biofilm growth applied to cold plasma treatment." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12311.

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Biofilms are colonies of bacteria attached to the surface at a solid-fluid interface. Bacteria in biofilm produce exopolysaccharides (EPS) that form a gel-like matrix in which the bacteria are embedded. Biofilms have numerous consequences in industrial and medical settings, both positive (bioreactors, digestion) and negative (blocking, as corrosive damage of materials/devices, food contamination, clinical infection). The use of antibiotics or mechanical clearing can be effective at removing biofilms, but such treatments are not always effective or appropriate in all situations. Recently, non-t
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42

Chien, Esther. "16S analysis of the subgingival biofilm and cytokine profile in patients receiving fixed orthodontic treatment." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu161485602285181.

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43

Hoang, Phuong Ha, Hong Thu Nguyen, Trung Thanh Trung, Thanh Tung Tran, Lan Phuong Do, and Thi Nhi Cong Le. "Isolation and selection of nitrifying bacteria with high biofilm formation for treatment of ammonium polluted aquaculture water." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-227866.

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A biofilm is any group of microorganisms in which cells stick to each other and adhere to a surface by excreting a matrix of extracellular polymeric substances (EPS). The chemoautotrophic nitrifying bacteria hardly form biofilms due to their extremely low growth rate; however, biofilm formation of nitrifying bacteria trends to attach in carrier by extracellular polysaccharides that facilitate mutual adhesion, the forming biofilm is also beneficial in nitrogen removal in biological filter systems, especially in aquaculture water treatment systems. The microbial activity within bio-carrier is a
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44

Sriwiriyarat, Tongchai. "Mathematical Modeling and Evaluation of Ifas Wastewater Treatment Processes for Biological Nitrogen and Phosphorus Removal." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/28733.

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The hybrid activated sludge-biofilm system called Integrated Fixed Film Activated Sludge (IFAS) has recently become popular for enhanced nitrification and denitrification in aerobic zones because it is an alternative to increasing the volume of treatment plant units to accomplish year round nitrification and nitrogen removal. Biomass is retained on the fixed-film media and remains in the aerobic reactor, thus increasing the effective mean cell resident time (MCRT) of the biomass and providing the temperature sensitive, slow growing nitrifiers a means of staying in the system when they otherwi
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Coughlin, Michael F. "Biodegradation of Azo Dyes by Bacterial Strains Isolated From Mill Creek Wastewater Treatment Plant, Cincinnati, Ohio." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin997713557.

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46

Fica, Zachary T. "Algae-Based Biofilm Productivity and Treatment of Dairy Wastewater: Effects of Temperature and Organic Carbon Concentration." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/5885.

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Production of dairy and associated products is a source of millions of gallons of wastewater every year. Water used in cleaning feeding stalls as well as the liquid component of the animal waste are two of the major volumetric components of this wastewater. This water is nutrient rich, often limiting the viability as a land applied fertilizer. However, these same nutrients could be used as an inexpensive feedstock for the cultivation of algae, which can then be used to produce downstream products including animal feed and aquaculture. As part of this study, algal biomass was cultivated on dair
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Sriwiriyarat, Tongchai. "Computer Program Development for the Design of IFAS Wastewater Treatment Processes." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/32065.

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The Integrated Film Activated Sludge Process (IFAS) was developed to reduce the cost of additional facilities required to complete year round nitrification in the design of new or retrofit wastewater treatment plants. The purpose of this project was to develop a computer-based mechanistic model, called IFAS, which can be used as a tool by scientists and engineers to optimize their designs and to troubleshoot a full-scale treatment plant. The program also can be employed to assist researchers conducting their studies of IFAS wastewater treatment processes. IFAS enables the steady-state simulati
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48

Bruze, Amanda. "A comparison of nutrient reduction between activated carbon and cocout fibre in wastewater treatment." Thesis, Högskolan Kristianstad, Sektionen för lärande och miljö, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-17211.

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Two batch mesocosms were created on site in Da Nang, Vietnam to reduce nutrients in wastewater from fish processing factories. The mesocosms contained either activated carbon or coconut fibre which in earlier studies has shown promising results in wastewater treatment. Three aspects of the materials were compared; Chemical content, which measured levels of COD, total-nitrogen and total-phosphorus. Rate of biofilm formation, where biofilm were measured visually and through weight. The last aspect was microbiological presence where fours species of microorganisms were cultivated. The experiment
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49

Silva, Junior Elisio Freire da. "Aspectos eticos e legais no controle do biofilme dentario no tratamento ortodontico com aparelhos fixos." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289793.

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Orientadores: Luiz Francesquini Junior, Eduardo Daruge Junior<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-05T11:34:33Z (GMT). No. of bitstreams: 1 SilvaJunior_ElisioFreireda_M.pdf: 504631 bytes, checksum: 98b30f3e2d0a5799a4674d4ac93d099d (MD5) Previous issue date: 2005<br>Resumo: A Ortodontia, como toda ciência, é uma especialidade odontológica que passa por um rápido processo de desenvolvimento, tanto no aspecto técnico, como nos materiais utilizados. A aparatologia ortodôntica fixa, por suas ca
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50

Gilmore, Kevin R. "Treatment of High-Strength Nitrogen Wasetewater With a Hollow-Fiber Membrane-Aerated Biofilm Reactor: A Comprehensive Evaluation." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/28711.

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Protecting the quality and quantity of our water resources requires advanced treatment technologies capable of removing nutrients from wastewater. This research work investigated the capability of one such technology, a hollow-fiber membrane-aerated biofilm reactor (HFMBR), to achieve completely autotrophic nitrogen removal from a wastewater with high nitrogen content. Because the extent of oxygenation is a key parameter for controlling the metabolic processes that occur in a wastewater treatment system, the first part of the research investigated oxygen transfer characteristics of the HFMBR
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