Sökning: "biological nitrogen removal"
Visar resultat 26 - 30 av 59 avhandlingar innehållade orden biological nitrogen removal.
26. Metabolic regulation of nitrogen fixation in Rhodospirillum rubrum
Sammanfattning : Nitrogen, along with carbon, hydrogen and oxygen, is amongst the most abundant elements in all living cells. The capability to convert atmospheric dinitrogen to biologically usable nitrogen compounds is only found in some prokaryotes. LÄS MER
27. Interaction analysis and control of bioreactors for nitrogen removal
Sammanfattning : Efficient control of wastewater treatment processes are of great importance. The requirements on the treated water (effluent standards) have to be met at a feasible cost. This motivates the use of advanced control strategies. LÄS MER
28. Removal of Organic Micropollutants from Wastewater in Biofilm Systems
Sammanfattning : The presence of organic hazardous substances in the aquatic environment, such as pharmaceutically active compounds and personal care products, has become a worldwide issue of increasing environmental concern. Present at concentration of nano- to milligram per liter, they are defined as organic micropollutants (OMPs). LÄS MER
29. SBR-technology - use and potential applications for treatment of cold wastewater
Sammanfattning : Biological nutrient removal is used as an indicator of SBR performance at nine different SBRplants operated for a long period at low water temperatures (5 – 10oC). Typically needed aeratedSRT (Solids Residence Time) for complete nitrification is found to be in the range of 6 – 10 days. LÄS MER
30. Investigation of degradation of toxic substances in fungal cultures by mass spectrometric techniques
Sammanfattning : Micropollutants in water are biological or chemical contaminants that are present in ground and surface waters in trace quantities. They are a result of human activity and include pharmaceutically active compounds (PhACs) and endocrine disrupting compounds (EDCs). LÄS MER