Sökning: "water-treatment"
Visar resultat 21 - 25 av 169 avhandlingar innehållade ordet water-treatment.
21. The occurrence of disinfection by-products in four Swedish drinking waterworks
Sammanfattning : Disinfection by-products (DBPs) are unwanted, potentially toxic compounds formed when drinking water is disinfected with chemical disinfectants such as chlorine or chloramine. The levels of DBPs produced depends on parameters, such as levels of natural organic matter (NOM) and the nature and concentration of chemical disinfectant used. LÄS MER
22. 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
23. Bark and charcoal filters for greywater treatment : pollutant removal and recycling opportunities
Sammanfattning : Water scarcity, inappropriate sanitation and wastewater pollution are critically important global issues. Greywater is a sustainable water source for recycling, so this thesis examined simple, robust, low-cost alternatives for on-site treatment of greywater to irrigation water quality. LÄS MER
24. UV-based advanced oxidation process for nutrient stabilisation and organic micropollutant degradation in source-separated human urine
Sammanfattning : Urine dehydration is one of the technological approach to recover nutrients in concentrated form from source separated urine. When drying fresh urine, nitrogen loss occurs due to hydrolysis of urea into ammonia unless methods to inactivate urease enzyme are employed. LÄS MER
25. Removal of organic micropollutantns from wastewater in a Swedish context
Sammanfattning : Due to their potential environmental risk, the abatement of organic micropollutants from wastewater has gained increasing attention in recent years. This thesis evaluates the use of ozone in Swedish wastewater treatment plants (WWTPs) and the incentives for full-scale implementation of organic micropollutant removal. LÄS MER