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Tesis sobre el tema "WASTEWATER TREATMENT MODELLING"

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Publicado: 10 de marzo de 2023

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1

Thomas, David N. "Flocculation modelling in wastewater treatment." Thesis, Cranfield University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323835.

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Ghavipanjeh, Farideh. "Modelling and control of wastewater treatment." Thesis, Lancaster University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250027.

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3

Samsó, Campà Roger. "Numerical modelling of constructed wetlands for wastewater treatment." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/144624.

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Constructed Wetlands (CWs) are a wastewater treatment technology that inherits the purification potential of natural wetlands and optimizes it to comply with regulations for treated discharges. CWs have become an equally performing alternative to conventional wastewater treatment technologies of communities up to 2000PE, with lower energy and maintenance costs. Despite their potential, CWs lack reliability, which holds back their full deployment in the territory. This fact results from the lack of understanding on their internal functioning and because they are prone to clogging. The enormou
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4

Solimeno, Alessandro. "Numerical modelling of microalgae systems for wastewater treatment." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/441737.

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Reactions and processes that occur in microalgae and bacteria systems are difficult to understand because most of them take place simultaneously and depend on many parameters such as temperature, solar radiation, nutrients availability (e.g. carbon and nitrogen) as well on certain inhibitory conditions (e.g excess of oxygen in the culture medium). In comparison with conventional wastewater treatment technologies, less is known about the physical, chemical and biochemical reactions and processes that occur in microalgae-bacteria treatment systems. The main outcome of the present PhD thesis was
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Soteman, Sven Wilhelm. "Modelling material mass balances over wastewater treatment plants." Doctoral thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/14070.

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Includes bibliographical references.<br>The overall objective of whole wastewater treatment plant (WWTP)modelling is to develop a COD (electron), carbon (C), nitrogen (N), phosphorus (P), alkilinity (proton), calcium (Ca), magnesium (Mg) and inorganic suspended solids (ISS) concentrations mass balances models for unit operations in municipal WWTPs. The development of such a model, for both steady state and dynamic simulation conditions, is an objective greater that this thesis project, however, it makes a number of significant steps towards it.
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6

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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7

Janus, Tomasz. "Modelling and simulation of membrane bioreactors for wastewater treatment." Thesis, De Montfort University, 2013. http://hdl.handle.net/2086/9507.

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The work presented in this thesis leads to the formulation of a dynamic mathematical model of an immersed membrane bioreactor (iMBR) for wastewater treatment. This thesis is organised into three parts, each one describing a different set of tasks associated with model development and simulation. In the first part, the Author qualitatively and quantitatively compares various published activated sludge models, i.e. models of biochemical processes associated with bacterial growth, decay, lysis and substrate utilisation in activated sludge systems. As the thesis is focused on modelling membrane bi
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8

Pereira, Sofia Filipe. "Modelling of a wastewater treatment plant using GPS-X." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/13621.

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Dissertation to obtain the degree of Master in Chemical and Biochemical Engineering<br>The work present in this thesis was conducted in Portucel Soporcel mill, in the industrial complex of Setúbal, and had as main objective the modelling of the treatment process of the effluents from this industry, using for this purpose the software GPS-X. This program has a clear-cut graphical interface and uses a specialized translator that converts the graphical process into material balance equations, based on dynamic models. These models allow, besides the kinetic descripton of the treatment process carr
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9

Pavasant, Prasert. "Modelling of the extractive membrane bioreactor process." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266478.

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10

Lumbers, Jeremy. "Rotating biological contactors : mechanisms, modelling and design." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47161.

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11

Milathianakis, Emmanouil. "Modelling and future performance assessment of Duvbacken wastewater treatment plant." Thesis, KTH, Mark- och vattenteknik (flyttat 20130630), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210704.

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Duvbacken wastewater treatment plant in Gävle, Sweden, currently designed for 100,000 person equivalent (P.E.) is looking for a new permit for 120,000 P.E. due to the expected increase of the population in the community. Moreover, the recipient of the plant’s effluent water was characterized as eutrophic in 2009. The plant emissions are regulated regarding seven days biological oxygen demand (BOD7) and total phosphorus (Ptot) emissions. Yet, there is no available computer model to simulate the plant operations and investigate the emissions of the requested permit. However, it was uncertain if
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12

Chen, Jining. "Modelling and control of the activated sludge process : towards a systematic framework." Thesis, Imperial College London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295963.

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13

Tikilili, Phumza Vuyokazi. "Performance and modelling of non-granular anammox culture for wastewater treatment." Thesis, University of Pretoria, 2016. http://hdl.handle.net/2263/61340.

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The anammox process is the latest biological process for removing nitrogenous compounds from wastewater. Anammox has been widely studied for the removal of nitrogen from various wastewaters. Despite intensive research for the past two decades to fully understand these processes, there is still some doubt related to the implementation of full-scale systems. Various characteristics of the anammox process, such as the reaction stoichiometry and the kinetic characteristics are still the predominant subjects. Slow bacterial growth and inhibition are the major causes of unsuccessful trials in the la
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14

Korsak, Larisa. "Anaerobic treatment of wastewater in a UASB reactor." Licentiate thesis, Stockholm : Kemi, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9633.

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15

Khalid, Muhammad Imran. "Development of an intelligent dynamic modelling system for the diagnosis of wastewater treatment processes." Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/1153.

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In the 21st Century, water is already a limited and valuable resource, in particular the limited availability of fresh water sources. The projected increase in global population from 6 billion people in 2010 to 9 billion in 2050 will only increase the need for additional water sources to be identified and used. This situation is common in many countries and is frequently exacerbated by drought conditions. Water management planning requires both the efficient use of water sources and, increasingly, the re-use of domestic and industrial wastewaters. A large body of published research spanning se
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16

Chistiakova, Tatiana. "Ammonium based aeration control in wastewater treatment plants : Modelling and controller design." Licentiate thesis, Uppsala universitet, Avdelningen för systemteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-349423.

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Wastewater treatment involves many processes and methods which make a treatment plant a large-scaled and complex system. A fundamental challenge is how to maintain a high process efficiency while keeping the operational costs low. The variety in plant configurations, the nonlinear behaviour, the large time delays and saturations present in the system contribute to making automation and monitoring a demanding task. The biological part of a wastewater treatment process includes an aeration of the water and this process has been shown to often result in the highest energy consumption of the plant
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17

Naghdy, G. "Identification, modelling and on-line computer control of a wastewater treatment process." Thesis, University of Portsmouth, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370913.

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18

Rosendahl, Sara. "Modelling control strategies for chemical phosphorus removal at Tivoli wastewater treatment plant." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-453546.

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Wastewater compose an environmental risk as it contains high levels of nutrients, including phosphorus. Wastewater treatment plants (WWTPs) reduce phosphorus by using coagulants that precipitate soluble phosphate into metal phosphate, which is separated by settling. Coagulant flow is regulated by a control strategy, typically feedforward or feedback control. Feedforward is based on incoming wastewater disturbances whereas feedback control uses outgoing process values. Incoming phosphate is hard to measure and can be estimated using soft sensors. Modelling control strategies can help decide whi
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19

FERREIRA, REBOUCAS Taise. "ENVIRONMENTAL FOOTPRINT REDUCTION FOR WASTEWATER TREATMENT BY MULTI-OBJECTIVE OPTIMIZATION AND MODELLING." Doctoral thesis, Università degli Studi di Palermo, 2020. http://hdl.handle.net/10447/395510.

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The current challenge faced by researchers and managers is minimize the environmental footprint of wastewater treatment plants (WWTPs). To accomplish this goal, other than respect legal requirements, WWTPs must provide better responses regarding consumption of energy and resources, greenhouse gas (GHG) emissions, among others. The research hereby presented is based on the application of mathematical modelling with the aim to propose a framework for the minimization of WWTP’s environmental footprint towards optimization techniques. A literature review was held to gain knowledge regarding the m
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20

Pierong, Rasmus. "Modelling of algae based wastewater treatment : Implementation of the River Water Quality Model no. 1." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226484.

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The conventional wastewater treatment of today was developed aiming to mitigate problems occurring in wastewater recipients such as oxygen depletion and eutrophication. The focus of wastewater management has however broadened and major concern is now focused on the sustainability of the wastewater treatment process itself. Algae based wastewater treatment is an alternative to conventional treatment. It has the potential to yield an acceptable effluent quality at a lower ecological cost. This Degree Project was conducted as part of MOBIT, a project at Mälardalen University. The MOBIT project wa
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21

Fornander, Erik. "Ozone Treatment Targeting Pharmaceutical Residues : Validation and Process Control in a Wastewater Treatment Plant." Thesis, Linköpings universitet, Teknisk biologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-154012.

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Major studies conducted in Europe and North America has concluded that the current processes in wastewater treatment plants insufficiently degrade micropollutants e.g. pharmaceutical residues. Several sorption and oxidation methods has therefore been investigated with the purpose of removing or degrading micropollutants in wastewater. The main purpose of this project was, firstly, to validate the results from a pilot study conducted by Tekniska verken i Linköping AB (2014) which investigated the use of ozone to degrade pharmaceutical residues. Secondly, to investigate and design a suitable pro
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22

Ahranjani, Nayrah Khandani. "Modelling of a Suspended Floc in Wastewater Treatment Systems using Object-Oriented Programming." Thesis, University of Newcastle Upon Tyne, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519487.

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23

Loureiro, Cláudia Filipa Reis Galinha. "Monitoring and modelling of membrane bioreactors for wastewater treatment incorporating 2D fluorescence spectroscopy." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/13108.

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Dissertação para obtenção do Grau de Doutor em Engenharia Química e Bioquímica, Especialidade em Engenharia Bioquímica<br>Os biorreactores de membranas (MBRs, ‘membrane bioreactors’) para o tratamento de águas residuais combinam o processo de lamas activadas com um passo de filtração para obtenção de um efluente limpo, livre de sólidos. Os MBRs representam uma tecnologia em expansão no tratamento de águas residuais sobretudo devido ao reduzido espaço que requerem e à elevada qualidade do efluente obtido. No entanto, a colmatação das membranas pode reduzir o desempenho do MBR. Por este motivo,
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24

Giaccherini, Francesca [Verfasser], and Thomas [Akademischer Betreuer] Dockhorn. "Modelling tannery wastewater treatment to evaluate alternative bioprocesses configurations / Francesca Giaccherini ; Betreuer: Thomas Dockhorn." Braunschweig : Technische Universität Braunschweig, 2017. http://d-nb.info/1175817414/34.

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25

Giaccherini, Francesca Verfasser], and Thomas [Akademischer Betreuer] [Dockhorn. "Modelling tannery wastewater treatment to evaluate alternative bioprocesses configurations / Francesca Giaccherini ; Betreuer: Thomas Dockhorn." Braunschweig : Technische Universität Braunschweig, 2017. http://nbn-resolving.de/urn:nbn:de:gbv:084-2017062210012.

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26

Gullman, Isak. "Improved prediction of biogas production at Uddebo wastewater treatment plant : Substrate modelling in SIMCA." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85463.

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Anaerobic digestion is a complex process, dependent on multiple factors, which can be made more stable and efficient with the help of process models. A more stable process could reduce biogas torching, which increases the amount of renewable energy available for heat- and electricity production and vehicle fuel.  Fluctuations in the produced biogas at Uddebo WWTP in Luleå, Sweden, has been observed, where imported industrial waste was suspected to be the cause. The purpose of this master thesis was to increase the predictability of the biogas production at Uddebo WWTP by creating a process mod
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27

Stenlund, Olle. "Design and Modelling of a Container for Optimal Flow Rate and Wastewater Purification." Thesis, Umeå universitet, Institutionen för fysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-183669.

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Industries are becoming more aware of how they use water in their production process. In many cases, they release wastewater back into the water supply untreated, which can cause adverse side effects to the ecosystem. A sustainable environment requires efficient water purification. One approach to purify wastewater uses rotating bed reactors. An impeller filled with catalyst pellets that absorb the pollutants spins in the contaminated fluid. The inertial forces from the spinning impeller propel the contaminated water through the packed bed and purify it. In this study, we used one of these rot
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28

Rodriguez, Raul. "Upflow anaerobic sludge blanket reactor : modelling." Licentiate thesis, KTH, Kemisk apparatteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-29521.

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Anaerobic treatment is widely used around the world as a biological stage in both domestic and industrial wastewater-treatment plants. The two principal advantages of anaerobic over aerobic treatment are the production of biogas, which can be used as fuel, and the lower rate of biomass production, which results in lower maintenance costs for the plant. The upflow anaerobic sludge blanket (UASB) reactor is an attractive alternative for regions in hot climates since it works better under mesophilic conditions and it does not need any supporting structure for the development of microorganisms, wh
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29

Dalmau, Solé Jordi. "Knowledge-based modelling and simulation of operational problems of microbiological origin in wastewater treatment plants." Doctoral thesis, Universitat de Girona, 2009. http://hdl.handle.net/10803/33690.

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The activated sludge and anaerobic digestion processes have been modelled in widely accepted models. Nevertheless, these models still have limitations when describing operational problems of microbiological origin. The aim of this thesis is to develop a knowledge-based model to simulate risk of plant-wide operational problems of microbiological origin.For the risk model heuristic knowledge from experts and literature was implemented in a rule-based system. Using fuzzy logic, the system can infer a risk index for the main operational problems of microbiological origin (i.e. filamentous bulking,
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30

Rustum, Rabee. "Modelling activated sludge wastewater treatment plants using artificial intelligence techniques (fuzzy logic and neural networks)." Thesis, Heriot-Watt University, 2009. http://hdl.handle.net/10399/2207.

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Activated sludge process (ASP) is the most commonly used biological wastewater treatment system. Mathematical modelling of this process is important for improving its treatment efficiency and thus the quality of the effluent released into the receiving water body. This is because the models can help the operator to predict the performance of the plant in order to take cost-effective and timely remedial actions that would ensure consistent treatment efficiency and meeting discharge consents. However, due to the highly complex and non-linear characteristics of this biological system, traditional
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31

Arnau, Notari María Rosario. "Hydrodynamic and biochemical Computational Fluid Dynamic modelling of full-scale anaerobic digesters for wastewater treatment." Doctoral thesis, Universitat Jaume I, 2022. http://dx.doi.org/10.6035/14107.2022.234094.

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Anaerobic digestion is one of the most widely used biological treatments for the stabilisation of sewage sludge, but the effectiveness of the process depends on good mixing. The Computational Fluid Dynamics (CFD) technique allows analysing the mixing and hydrodynamics, so it has been widely used to study anaerobic digestion. In this thesis, hydrodynamics in full-scale digesters have been studied by means of CFD models, evaluating their mixing systems by means of different scenarios according to mixing and design parameters and dead volumes. In a second part, a new CFD solver was developed to c
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32

Guo, Li Sha. "Greenhouse gas emissions from and storm impacts on wastewater treatment plants : process modelling and control." Doctoral thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25360.

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Cette thèse étudie l'interaction entre les stations d’épuration (STEP) et le changement climatique: soit en premier lieu la production ainsi que les émissions de gaz à effet de serre (GES), en particulier le protoxyde d’azote (N2O), généré à la STEP et en second lieu l’effet des pluies plus intenses dues aux changements climatiques sur la STEP. Des campagnes de mesure sur le terrain et la modélisation à échelle réelle ont été utilisées conjointement dans cette recherche. Une campagne de mesure d'une durée d’un mois a été réalisée dans une STEP traitant les eaux usées de 750,000 équivalents hab
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33

Fiorentino, Carmine <1978&gt. "Modelling to Manage Activated Sludge Wastewater Treatment Plant and Facultative Lagoons Finishing for Irrigation Reuse." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/8054/1/Fiorentino_Carmine_tesi.pdf.

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In the last years, the role of wastewater treatment plants has become even more relevant not only as final destination of the collected sewage but also as a center of the sustainable approaches for the water cycle. Moreover, the considerable improvements in wastewater treatment control technologies enable now the implementation of advanced sustainable management perspectives. A particular incentive to increase the efficiency of WWTPs performances comes from the possibility to reuse treated wastewater. In this context, the overall aim of this PhD thesis was to investigate the implementation of
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34

Echaroj, S. "Process evaluation and mathematical modelling of the anaerobic rotating biological contactors (RBC) process for wastewater treatment." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375138.

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35

Al-Obaidi, Mudhar A. A. R. "Modelling, Simulation, and Optimisation of Reverse Osmosis Process with Application in Wastewater Treatment and Food Processing." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/17345.

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Reverse Osmosis (RO) is a membrane-based separation process applied in several industrial and food processing applications. In this research, performance of RO process is investigated in respect of two applications (a) wastewater treatment (b) concentration fruit juices using model-based techniques. For this purpose, a number of models (both 1 and 2-dimensional steady state and dynamic) for spiral wound RO process are developed based on Solution-Diffusion model and Irreversible Thermodynamic model. The models are validated against actual experimental data reported in the literature before bein
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36

Al, Ketife Ahmed Majeed Daife. "Modelling and Optimization of Combined Wastewater Treatment and CO2 Bio-fixation in a Batch Algal Photobioreactor." Thesis, Curtin University, 2017. http://hdl.handle.net/20.500.11937/59696.

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The research focuses on investigation and optimization (using Box Behnken design) of the key parameters of CO2 gas concentration, light intensity, temperature, feedwater nutrient concentration, and wastewater origin (municipal primary and secondary, and petroleum industry) on photobioreactor algal growth parameters. A mathematical model is provided for predicting algal growth. Finally, the influence of light wavelength on algal growth is investigated. The outcomes can be used to inform design and operation of large-scale algal cultivation systems.
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37

Pouzol, Tanguy. "Monitoring and modelling of pharmaceuticals in wastewater : Daily and hourly loads in both hospital and urban wastewater." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI009/document.

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Les flux journaliers et horaires de 15 molécules pharmaceutiques à l'entrée d'une station d'épuration ont été mesurés sur 3 ans et modélisés à la fois pour un bassin urbain de 16 000 habitants et un hôpital de 450 lits. Certaines molécules ne sont jamais ou rarement quantifiées. Les flux journaliers vont de 0,6 à 564 g/jour en fonction de la molécule et de la campagne de mesure 24h. Aucune dynamique saisonnière ou hebdomadaire n’a été identifiées. La dynamique des flux horaires des médicaments se distingue des autres polluants et du débit des eaux usées. Les flux horaires mesurés sont sévèreme
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38

Rodríguez-Gómez, Raúl. "Closing the Loop by Combining UASB Reactor and Reactive Bed Filetr Technology for wastewater Treatment : Modelling and Practical Approaches." Doctoral thesis, KTH, Mark- och vattenteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-182990.

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A laboratory-scale upflow anaerobic sludge blanket (UASB) reactor followed by a packed bed reactor (PBR) filled with Sorbulite® in the lower part and Polonite® in the upper part was used to treat household wastewater in a 50-week experiment. A model was developed to describe the performance of the UASB reactor, including mass transfer through the film around anaerobic granules, intra-particle diffusion and bioconversion of the substrate. In a second model, a numerical expression describing the kinetics occurring in the granules was developed. It includes the resistances through which the subst
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39

Bisinella, de faria Ana barbara. "Development of an integrated approach for wastewater treatment plant optimization based on dynamic modelling and environmental assessment." Thesis, Toulouse, INSA, 2016. http://www.theses.fr/2016ISAT0039/document.

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Les stations d’épuration se tournent actuellement vers des installations de récupération d'énergie et des nutriments. Dans le même temps, elles sont soumises à une réglementation de plus en plus stricte en ce qui concerne l'environnement et la santé humaine. Face au défi ambitieux de réduire les coûts d'exploitation et les impacts environnementaux tout en garantissant la robustesse du procédé, il est nécessaire de développer des outils capables de fournir une évaluation intégrée du procédé. L’objectif de ce travail est de développer une plateforme réaliste et prédictive contenant trois aspects
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40

MEI, ROBERTO. "MULTIVARIABLE MODELLING AND CONTROL OF CONTINUOUS PROCESSES: Wastewater treatment plants and complex fluids production as case studies." Doctoral thesis, Università degli Studi di Cagliari, 2019. http://hdl.handle.net/11584/259120.

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In this thesis, the multivariable modelling and control of continuous processes is discussed. Two main lines of research were followed: the multivariable system identification for processes subjected to disturbances and the multivariable modelling and control of a continuous production of complex fluids. For the first topic, wastewater treatment plants were used as case study. The goal of the work was to develop a method to implement multivariable variations of the manipulated inputs chosen for the identification phase, in order to obtain as much information as possible on the system in t
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41

Renman, Agnieszka. "On-site wastewater treatment : Polonite and other filter materials for removal of metals, nitrogen and phosphorus." Doctoral thesis, KTH, Mark- och vattenteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4811.

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Bed filters using reactive materials are an emerging technology for on-site wastewater treatment. Chemical reactions transfer contaminants from the aqueous to the solid phase. Phosphorus is removed from domestic wastewater by sorption to filter materials, which can then be recycled to agriculture as fertilisers and soil amendments. This thesis presents long-term column and field-scale studies of nine filter materials, particularly the novel product Polonite®. Phosphorus, nitro-gen and metals were removed by the mineral-based materials to varying degrees. Polonite and Nordkalk Filtra P demonstr
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42

Jonfelt, Clara. "An evaluation of an MBBR anammox model - sensitivity analysis and calibration." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-312511.

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This master thesis is about mathematical modelling of the anammox process with a moving bed biofilm reactor (MBBR) for a reject water application. Specifically, the aim of my research was to find out whether the model proposed by Erik Lindblom in (Lindblom et al. 2016) is a good model for this purpose and worth continuous research and optimization. The code for the model, implemented in Matlab/Simulink, was given; although not initially functioning in the given condition. Some modifications needed to be done to make it function properly. In order to confirm that the code was working and used
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43

Guisasola, i. Canudas Albert. "Modelling biological organic matter and nutrient removal processes from wastewater using respirometric and titrimetric techniques." Doctoral thesis, Universitat Autònoma de Barcelona, 2005. http://hdl.handle.net/10803/5306.

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44

Climent, Agustina Javier. "Development of a modelling tool to perform hydrodynamics coupled with biological processes in the secondary stage of wastewater treatment plants." Doctoral thesis, Universitat Jaume I, 2019. http://hdl.handle.net/10803/668408.

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Simulation models based on tools associated with computational fluid dynamics (CFD) and applied to wastewater treatment have been developed. The hydrodynamic effect of the internal elements that govern the flow behavior in the biological reactors combined with the biochemical models that reproduce the purification process has been investigated. An experimental work of validation of CFD models has been carried out in real scale.<br>Se han desarrolado modelos de simulación basados en herramientas asociadas a la dinámica computacional de fluidos (CFD) y aplicados al tratamiento de aguas residuale
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45

Tan, Benjamin L. L. "Chemical and Biological Analyses of Selected Endocrine Disruptors in Wastewater Treatment Plants in South East Queensland, Australia." Thesis, Griffith University, 2007. http://hdl.handle.net/10072/365603.

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Studies in North America, Europe, Japan and Australia have reported the presence of endocrine disrupting compounds (EDCs) in wastewater treatment plants (WWTPs) effluent could affect physiological and reproductive function in exposed fish consistent with exposure to hormonally active chemicals. The occurrence of EDCs in rivers and receiving environments situated near WWTPs raises concern over the removal efficacy of these compounds by conventional treatment processes. The main aim of this study was to utilize chemical analyses to assess concentrations of selected endocrine disruptors as well
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46

Mahlathi, Christopher Dumisani. "In-Stream water quality modelling and optimisation by mixed-integer programming : simulation and application in actual system." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/40840.

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Water scarcity has become a global problem due to diminishing water resource and pollution of the remaining resources. The problems arising fromwater scarcity are exacerbated rapid urbanisation and industrialisation. Water quality management systems are introduced. Numerous water management methods exist some of which, if applied e ectively, can remedy these problems. In South Africa, water management systems are urgently needed to start addressing issues around the longterm sustainability of our limited water resource. Water quality modelling is one of the tools employed to assist in va
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47

Derdar, Mawaheb M. Zarok. "Experimental and kinetic modelling of multicomponent gas/liquid ozone reactions in aqueous phase. Experimental investigation and Matlab modelling of the ozone mass transfer and multicomponent chemical reactions in a well agitatated semi-batch gas/liquid reactor." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4872.

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Due to the ever increasing concerns about pollutants and contaminants found in water, new treatment technologies have been developed. Ozonation is one of such technologies. It has been widely applied in the treatment of pollutants in water and wastewater treatment processes. Ozone has many applications such as oxidation of organic components, mineral matter, inactivation of viruses, cysts, bacteria, removal of trace pollutants like pesticides and solvents, and removal of tastes and odours. Ozone is the strongest conventional oxidant that can result in complete mineralisation of the organic pol
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48

Derdar, Mawaheb M. Zarok. "Experimental and kinetic modelling of multicomponent gas/liquid ozone reactions in aqueous phase : experimental investigation and Matlab modelling of the ozone mass transfer and multicomponent chemical reactions in a well agitated semi-batch gas/liquid reactor." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4872.

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Due to the ever increasing concerns about pollutants and contaminants found in water, new treatment technologies have been developed. Ozonation is one of such technologies. It has been widely applied in the treatment of pollutants in water and wastewater treatment processes. Ozone has many applications such as oxidation of organic components, mineral matter, inactivation of viruses, cysts, bacteria, removal of trace pollutants like pesticides and solvents, and removal of tastes and odours. Ozone is the strongest conventional oxidant that can result in complete mineralisation of the organic pol
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49

Aymerich, Blazquez Ignasi. "Integrated assessment of wastewater treatment plants and their receiving river systems in a global change context." Doctoral thesis, Universitat de Girona, 2019. http://hdl.handle.net/10803/670284.

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For a long time, there has been a need and an ambition to better understand the behavior of integrated systems by considering the whole urban water cycle, including wastewater transportation, wastewater treatment and the receiving water. On the other hand, fragmented environmental policies on wastewater sanitation, global change, and emerging contaminants are increasingly threatening freshwater ecosystems and human health. Within this context, this thesis embeds a series of research studies aiming to improve our comprehension of the functioning of urban wastewater systems (UWWS), considering b
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50

Chamoun, Ninus, Viktor Kjellvertz, William Mahajan, and Yuanchao Song. "Fate of Heavy Metals in Waste to Energy (WtE) Processes." Thesis, KTH, Skolan för kemivetenskap (CHE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208925.

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This study was made to increase the understanding of how heavy metals in the aqueous phase are removed at low initial concentrations in different pH and Eh values. The reaction that has been studied is mainly hydroxide precipitation and adsorption in a condensate treatment. In the study, data from one of Vattenfalls waste incinerators was analysed and the results from the data were then compared to previous studies. To increase the understanding, modelling of the heavy metals behaviour in the given concentrations was then made with Medusa and PHREEQC. The heavy metals that were analysed were S
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