Search for dissertations about: "denitrification rate"
Showing result 1 - 5 of 25 swedish dissertations containing the words denitrification rate.
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1. Degradation of organic matter in wastewater -Enhanced denitrification and removal of refractory organics
Abstract : Degradation of organic matter takes place in many processes within a wastewater treatment plant (WWTP). The need for optimisations and extended degradation processes for both organics and nitrogen will increase as outlet demands are strengthened and increasing loads are desired. READ MORE
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2. Coupled Hydrological and Microbiological Processes Controlling Denitrification in Constructed Wetlands
Abstract : Treatment wetlands play an important role in reducing nitrogen content in wastewater and agricultural run-off water. The main removal process is denitrification and the removal efficiency depends on the hydrological and microbiological features of the wetland, especially in terms of water residence times and denitrification rates. READ MORE
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3. Nitrogen removal in treatment wetlands : Factors influencing spatial and temporal variations
Abstract : Decreasing the nitrogen transport from land to surrounding seas is a major task throughout the world to limit eutrophication of the coastal areas. Several approaches are currently used, including the establishment of wetlands, to decrease the transport of nitrogen. READ MORE
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4. Denitrification in a Non-nitrifying Activated Sludge System Employing Recirculation from a Tertiary Nitrification Unit
Abstract : A non-nitrifying, denitrifying activated sludge system has been demonstrated to give high denitrification rates and to be a useful component in a municipal wastewater treatment plant where partial nitrogen removal is required. One useful configuration is where clarified effluent from a non-nitrifying activated sludge system is nitrified in a tertiary nitrification unit and recirculated to the activated sludge system for denitrification. READ MORE
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5. Structure and function of microbial communities in constructed wetlands - influence of environmental parameters and pesticides on denitrifying bacteria
Abstract : This thesis addresses the interactions and relationships between natural aquatic bacterial communities, environmental parameters, anthropogenic chemicals and the denitrification pathway in the habitat of agricultural constructed wetlands. The main aim was to gain fundamental knowledge of the drivers behind the processes of the denitrification (i.e. READ MORE