Browsing NTNU Open by Author "Halle, Cynthia"
Now showing items 1-20 of 22
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A Comparison of Theoretical and Measured Pressure Losses Within a Drinking Water Treatment Plant
Smith, Jesse Stephen (Master thesis, 2016)Pressure loss and its effects on the resulting hydraulics within a drinking water treatment plant are extremely important aspects of design and operation. Pressure losses are important to monitor as they are the driving ... -
A Comparison of Theoretical and Measured Pressure Losses Within a Drinking Water Treatment Plant
Smith, Jesse Stephen (Master thesis, 2016)Pressure loss and its effects on the resulting hydraulics within a drinking water treatment plant are extremely important aspects of design and operation. Pressure losses are important to monitor as they are the driving ... -
Assimilerbart organisk karbon i drikkevann i Trondheim
Johansen, Ingrid Elise (Master thesis, 2018)Å opprettholde tilfredsstillende drikkevannskvalitet til enhver tid kan være en krevende oppgave. Råvannets karakteristikk, vannbehandlingsprosessen og distribusjonssystemet er alle faktorer som påvirker kvaliteten på ... -
Bacterial Community Dynamics in a Biofilter exposed to a Micropollutant
Ophus, Mari (Master thesis, 2014)Perfluorooctanoic acid (PFOA) is a fluorinated compound used in many industrial and consumer products. It is environmentally persistent, widespread and bioaccumulative, and multiple toxicities have been reported in ... -
Characterization of photocatalytic materials used for water treatment
Emdal, Thorbjørn Salmelid (Master thesis, 2015)As the pressure on water bodies throughout the world is increasing, good water quality obtained through water treatment is essential to secure health and welfare of the population. Many chemical compounds used in industry ... -
Characterization of photocatalytic materials used for water treatment
Emdal, Thorbjørn Salmelid (Master thesis, 2015)As the pressure on water bodies throughout the world is increasing, good water quality obtained through water treatment is essential to secure health and welfare of the population. Many chemical compounds used in industry ... -
Comparison of the microbiomes of two drinking water distribution systems—with and without residual chloramine disinfection
Waak, Michael B; Hozalski, Raymond M; Halle, Cynthia; LaPara, Timothy M (Journal article; Peer reviewed, 2019)Background Residual disinfection is often used to suppress biological growth in drinking water distribution systems (DWDSs), but not without undesirable side effects. In this study, water-main biofilms, drinking water, ... -
Demonstrating the potential of salt tracer studies to improve Norwegian drinking water network models and water age estimates
Rakstang, Jon Kristian; Waak, Michael B; Rokstad, Marius Møller; Halle, Cynthia (Peer reviewed; Journal article, 2021)«Tracer»-studier med salt kan potensielt forbedre norske vannettsmodeller og vannalder-estimater. Hygienisk sikkert drikkevann er et grunnleggende menneskelig behov. Drikkevannskvalitet påvirkes av råvannet, vannbehandling, ... -
Inactivation of marine heterotrophic bacteria in ballast water by an Electrochemical Advanced Oxidation Process
Moreno-Andrés, Javier; Ambauen, Noemi; Vadstein, Olav; Halle, Cynthia; Acevedo-Merino, Asunción; Nebot, Enrique; Meyn, Thomas (Journal article; Peer reviewed, 2018)Seawater treatment is increasingly required due to industrial activities that use substantial volumes of seawater in their processes. The shipping industry and the associated management of a ship's ballast water are currently ... -
Initial degradation mechanism of salicylic acid via electrochemical process
Mai, Ngoc Lan; Ambauen, Noemi; Halle, Cynthia; Meyn, Thomas; Trinh, Thuat (Peer reviewed; Journal article, 2021)Salicylic acid is a common chemical used in the pharmaceutical industry. Much attention has been paid in recent years to the elimination of this contaminant from the water by electrochemical oxidation. However, there is ... -
Insights into the Kinetics of Intermediate Formation during Electrochemical Oxidation of the Organic Model Pollutant Salicylic Acid in Chloride Electrolyte
Ambauen, Noemi; Muff, Jens; Mai, Ngoc Lan; Halle, Cynthia; Trinh, Thuat; Meyn, Thomas (Journal article; Peer reviewed, 2019)The present study investigated the kinetics and formation of hydroxylated and chlorinated intermediates during electrochemical oxidation of salicylic acid (SA). A chloride (NaCl) and sulfate (Na2SO4) electrolyte were used, ... -
Ion Exchange: - A Treatment Option for Acid Mine Drainage
Khan, Amita (Master thesis, 2014)The sorption of heavy metals from Acid Mine Drainage (AMD) by using clinoptilolite, a natural zeolite, was studied in this thesis. The behavior of clinoptilolite, as an ion exchanger, was studied to see if the concentration ... -
Performance of Organic Solvent Nanofiltration Membrane for Purification of Omega-3
Uler Zefikj, Monika (Master thesis, 2017)In this master thesis, the performance of organic solvent nanofiltration membrane for purification of Omega-3 is studied. The aim was to contribute to the improvement of the production process of a Norwegian company producing ... -
Phosphorus Binding to Nanoparticles and Colloids in Forest Stream Waters
Gottselig, Nina; Nischwitz, Volker; Meyn, Thomas; Amelung, Wulf; Bol, Roland; Halle, Cynthia; Vereecken, Harry; Siemens, Jan; Klumpp, Erwin (Journal article; Peer reviewed, 2017)Elemental contents in catchment headwaters are indicative of the load of nutrients and minerals cycled or released from ecosystems, yet little is known about natural colloids (1–1000 nm) and especially natural nanoparticles ... -
Quantification of Bacterial Adhesion and Characterization of Polymeric Pristine and Modified UF Membranes
Hasane, Anissa (Master thesis, 2016)Membrane filtration is an important technology that might help solving future challenges regarding the access to potable drinking water. One of the main challenges in membrane operations is biofouling. Biofouling is the ... -
Quantification of Bacterial Adhesion and Characterization of Polymeric Pristine and Modified UF Membranes
Hasane, Anissa (Master thesis, 2016)Membrane filtration is an important technology that might help solving future challenges regarding the access to potable drinking water. One of the main challenges in membrane operations is biofouling. Biofouling is the ... -
Removal of organic pollutants from landfill leachate by electrochemical oxidation - Assessment of performance and applicability in Northern Norway
Ambauen, Noëmi (Doctoral theses at NTNU;2020:396, Doctoral thesis, 2020)Landfill leachate treatment by advanced oxidation processes has gained much attention in the past decades. The removal of organic pollutants from landfill leachate in particular has been in focus due to their detrimental ... -
Strategies for Legionella Management in Drinking Water Systems: An Examination of Water intake Location or Placement and Flushing Efficacy
Meegoda, Charuka Saamantha (Doctoral theses at NTNU;2023:440, Doctoral thesis, 2023)Legionella, particularly Legionella pneumophila, are opportunistic bacteria found in artificial and natural aquatic environments that may cause severe pneumonia, known as Legionnaires’ disease, and mild influenza-like ... -
Study of Pilot-scale Filtration at Minneapolis Water Works
Seip, Nils Darre (Master thesis, 2014)Minneapolis Water Works (MWW) in Minnesota, United States, have experienced occasional taste and odor episodes with their river water source. This thesis investigates the potential benefits of installing granular activated ... -
The Effect of pH, Dissolved Metals and Suspended Minerals on the Hydrolysis of Neonicotinoids
Engan, Ida (Master thesis, 2016)Neonicotinoids are a chemical class of insecticides that is registered in more than 120 countries and widely used all over the world. In recent years, neonicotinoids have been in the spotlight for their negative effects ...