Essays about: "Dissolved oxygen control"
Showing result 1 - 5 of 17 essays containing the words Dissolved oxygen control.
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1. As I live and breathe! : The effects of hypolimnic oxygenation on benthic macroinvertebrate and zooplankton assemblages
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Exacerbated deep-water hypoxia, brought about by anthropogenic-derived dissolved organic carbon (DOC) input, has potentially detrimental impacts on organisms residing in freshwater ecosystems. Oxygenation of the water column is a potential management strategy to mitigate this impact, and used to alleviate DOC induced oxygen depletion. READ MORE
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2. Carbon dioxide dynamics in agricultural streams : Investigation of two streams draining catchments dominated by agricultural land
University essay from Uppsala universitet/Luft-, vatten- och landskapsläraAbstract : In recent years, streams draining agricultural land has been suggested to exhibit high carbon dioxide (CO2) concentrations when compared to streams draining other land-types. The transport of carbon from land to ocean is mainly occurring through the chain of inland waters, and with agricultural land today representing 40% of all continental area many of these inland waters are influenced by agricultural land. READ MORE
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3. Evaluation of stimulated reductivedechlorination in situ of chlorinatedsolvents at a site in Huddinge : using principal component analysis, partialleast square regression and degradation
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : The method of using stimulated reductive dechlorination when remediating sites contaminated with chlorinated solvents is not unusual, but not many studies have been done on the overall process outside of a controlled environment. In order to investigate the process, principal component analysis (PCA) and partial least square (PLS) regression was used to identify the most important parameters for the degradation of the chlorinated solvents. READ MORE
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4. Development of a Bioreactor Simulator for supporting automation software test and verification
University essay from Uppsala universitet/Avdelningen för systemteknikAbstract : The GE Healthcare Life sciences organization develop and manufacture bioreactors, mixers, filtration skids and chromatography systems used together in a biomanufacturing platform. The platform is monitored and controlled by a distributed control system through a Programmable Logic Controller (PLC). READ MORE
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5. Deammonification efficiency in combined UASB and IFAS system for mainstream WWT
University essay from KTH/Mark- och vattenteknikAbstract : The study is about Nitrogen removal from the low concentrated mainstream wastewater after Upflow Anaerobic Sludge Blanket reactor process (UASB) by single-stage Partial Nitritation/Anammox process in a pilot scale reactor at Hammarby Sjöstad in Stockholm. A mixture of various concentrations of dissolved oxygen and different aeration methods have been tested in the pilot scale reactor in five months divided into five periods where the temperature was set at 15° C throughout the study. READ MORE