Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"membrane bioreactors"”.
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Denitrification in Membrane Bioreactors
Three membrane bioreactors, a low flux filter (LFF), a diafilter (DF), and an ion-exchange (IE) membrane bioreactor were used to treat water polluted with 50 ppm-N nitrate. The three systems were compared in terms of removal efficiency of nitrate, operational complexity, and overall quality of the …
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Modelling and Simulation of Membrane Bioreactors for Wastewater Treatment
… 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 …
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Transverse vibration as a fouling limitation strategy in membrane bioreactors
Membrane fouling is a key factor that significantly contributes to the performance of membrane bioreactors (MBR). Aeration is commonly applied in MBRs to control the rate of fouling. In applications where aeration is not a feasible option, such as in anaerobic membrane bioreactors (AnMBRs), …
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The Influence of Shear on Extracellular Polymeric Substance Production in Membrane Bioreactors
… to reducing the deposition of foulants on the membrane surface.
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Effect of solids retention time in membrane bioreactors on reverse osmosis membrane fouling
… there is an increasing interest in water reuse. Membrane bioreactors (MBRs) are commonly used in wastewater treatment plants, though reuse of treated wastewater for potable purposes requires more advanced treatment. Reverse osmosis (RO), a water treatment process commonly used for drinking water, …
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Advancing wastewater valorization using anaerobic membrane bioreactors with bioaugmentation and ion-exchange, and bio-plastic production
… methane recovery in a novel two-phase anaerobic membrane bioreactor (AnMBR) process incorporating bioaugmentation and ion-exchange resins, as well as bio-polymer recovery via mixed microbial culture (MMC) polyhydroxyalkanoate (PHA) production. The first study presented in this dissertation …
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Evaluation of anaerobic membrane bioreactors and hydrothermal catalytic gasification for enhanced conversion of organic wastes to renewable fuels
Anaerobic membrane bioreactor (AnMBR) systems, merging anaerobic digestion with membrane filtration technology, have been studied as an alternative wastewater treatment process that can effectively generate energy while removing particulates and organics in a single process. AnMBR studies with …
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Challege and Opportunities of Membrane Bioelctrochemical Reactors for Wastewater Treatment
… approach for wastewater treatment. Integrating membrane filtration with MFCs could be a viable option for advanced wastewater treatment with a low energy input. Such an integration is termed as membrane bioelectrochemical reactors (MBERs). Comparing to the conventional membrane bioreactors or …
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Elucidating the relative environmental sustainability of anaerobic membrane bioreactor (AnMBR) development pathways
… important in decision-making. Anaerobic membrane bioreactors (AnMBRs), as an emerging anaerobic technology, are gaining popularity because of their potential to achieve energy-positive treatment and to achieve a high quality effluent. This thesis aims to explore the full-scale design and …
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Laccase-based Biocatalytic Systems for Recalcitrant Micro-Pollutants Degradation and Energy Generation
… design are required. In this study, and two membrane bioreactors were proposed for carbamazepine (CBZ) degradation: the hybrid membrane system where laccase-immobilized TiO2 nanoparticles were suspended in the feed solution, and the biocatalytic membrane reactor where laccase was immobilised …
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Evaluating the Dual Role of Municipal Wastewater Treatment Plants in the Removal Efficiency and Environmental Emission of Microplastics
… treatments, such as tertiary filtration and membrane bioreactors, achieve removal efficiencies of up to 99 %, significant quantities of MPs still persist in treated effluent and accumulate in sewage sludge. Notably, sludge dewatering processes were identified as a critical point of …
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Advancing sustainable wastewater treatment: elucidating tradeoffs among emerging resource recovery technologies through quantitative sustainable design
… downstream process is also necessary. Anaerobic membrane bioreactors (AnMBRs) were found to have the highest consistent COD removal (80-90%) of the anaerobic processes, but also had high energy consumption. Though they are a new technology, AnMBRs show promise for full-scale domestic wastewater …
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Removals of sulfonamide and trimethoprim antibiotics in municipal wastewater by biological treatment processes
… sludge. The removals of sulfonamides by aerobic bioreactors were shown to be consistently greater than that of trimethoprim. During biological treatment, evidence of transformation between sulfonamides and their corresponding N4-acetyl metabolites was observed. The removals of the investigated …
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Submerged-Membrane Bioreactor for the Treatment of NASA Wastewater
… in terrestrial wastewater treatment processes. Membrane bioreactors present a possible means of implementing biological wastewater processing in a microgravity compatible manner.A novel submerged-membrane bioreactor was constructed to examine the treatment efficiency of a NASA wastewater ersatz. …
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A sponge-based moving bed bioreactor for micropollutant removal from municipal wastewater
… chemicals and pesticides. A moving bed-submerged membrane bioreactor (MB-SMBR) was also evaluated in terms of micropollutant removal and membrane fouling. During the batch experiments, non-acclimatized (virgin) sponge showed significant and rapid sorption of hydrophobic compounds. Acclimatized …
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Effect of High Shear on Anaerobic Digestion in an Anaerobic Membrane Bioreactor (Anmbr) Treating High Strength Wastewater
Anaerobic membrane bioreactors (AnMBRs) provide an alternative for advanced wastewater treatment since they facilitate retention of slow growing anaerobic microorganisms resulting in efficient treatment in small reactor volumes and excellent effluent quality. Hence, these reactors are ideal for …
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Development of carbon nanotube membranes for wastewater treatment and surface enhanced Raman scattering study of the membrane efficiency and eventual contamination caused
Membrane Bioreactors (MBRs) are well established preferably in industrial wastewater treatment and were introduced aiming at the coupling of membrane separation properties simultaneously with a biochemical reaction. The solid-liquid separation that is conventionally carried out in gravity-based …
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Ozone and biofiltration as an alternative to reverse osmosis for removing PPCPs and EDCs from wastewater
… advanced wastewater treatment processes, such as membrane bioreactors (MBRs), along with processes that are not normally used for treating wastewater to remove these emerging contaminants. The processes include oxidation with ozone coupled with biological active filtration (BAF) to increase the …
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Improving bioenergy recovery from municipal wastewater with a novel cloth-filter anaerobic membrane bioreactor
… substantial energy input for aeration. Anaerobic membrane bioreactors (AnMBRs) have been proposed as a more sustainable approach than CAS to manage the organics in wastewater because they eliminate the need for aeration and convert organics into a renewable energy resource (methane). However, when …