Search for dissertations about: "reject water"
Showing result 1 - 5 of 12 swedish dissertations containing the words reject water.
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1. Start-up and operational strategies for deammonification plants : - a study with one-stage moving bed biofilm reactors treating reject water
Abstract : To limit eutrophication, wastewater treatment plants use biological methods to convert degraded nitrogen to nitrogen gas. Deammonification, or partial nitritation in combination with anammox, has been shown to be an energy efficient process. READ MORE
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2. Performance Assessment of Wastewater Treatment Plants : Multi-Objective Analysis Using Plant-Wide Models
Abstract : As the knowledge about anthropogenic impacts of climate change has grown, the awareness of the contributions from treatment of wastewater has widened the scope for wastewater treatment plants (WWTPs). Not only shall ever stricter effluent constraints be met, but also energy efficiency be increased, greenhouse gases mitigated and resources recovered. READ MORE
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3. Microbial communities in anammox and nitrifying biofilms
Abstract : Excess of nitrogen in water bodies causes eutrophication. One important source of nitrogen is the effluent from wastewater treatment plants (WWTPs). Nitrogen in wastewater is most commonly removed by nitrification-denitrification. READ MORE
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4. Controlling and monitoring of deammonification process in moving bed biofilm reactor
Abstract : It is considered that partial nitrification combined with anammox, named deammonification, is more environmental friendly compared with conventional nitrification/denitrification due to decrease energy requirement, low emission of CO2 and N2O. Dissolved oxygen (DO) is a significant parameter influencing the nitrogen removal rate and activity of different microorganisms. READ MORE
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5. New Dimensions of Moving Bed Biofilm Carriers : Influence of biofilm thickness and control possibilities
Abstract : The moving bed biofilm reactor (MBBR) is a biological wastewater treatment process in which microorganisms grow as biofilms on suspended carriers. Conventionally, MBBRs are mainly designed and optimized based on the carrier surface area, neglecting the dynamic relationship between carrier design, reactor operation and biofilm characteristics, such as biofilm thickness and the composition of the microbial community. READ MORE