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Showing result 1 - 5 of 432 swedish dissertations matching the above criteria.

2. 1. Municipal wastewater treatment by microsieving, microfiltration and forward osmosis : Concepts and potentials

   Author : TOBIAS HEY; Avdelningen för kemiteknik; []
   Keywords : Direct membrane filtration; electricity; energy; forward osmosis; microfiltration; microsieving; municipal wastewater treatment; treatment concept; Direct membrane filtration; Electricity; Energy; Forward osmosis; Microfiltration; Microsieving; Municipal wastewater treatment; Treatment concept;

   Abstract : Conventional wastewater treatment plants are designed for treating manmade wastewater (e.g., from households and industries) and to protect the environment (e.g. READ MORE

4. 2. The zone concept : design of low-voltage installations considering the spread of high frequency harmonics

   Author : Martin Lundmark; Magnus Olofsson; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric Power Engineering; Elkraftteknik; Energy Engineering; Energiteknik;

   Abstract : The use of electric power has become a backbone of the modern society. Together with the growth in possible applications of electric power, we also see a growth in the number of devices and the interest of using electrical energy as an environmentally-friendly alternative to other sources of energy. READ MORE

5. 3. Wastewater treatment in constructed wetlands : Effects of vegetation, hydraulics and data analysis methods

   Author : Hristina Bodin; Karin Tonderski; Jesper Persson; Stefan Weisner; Per Milberg; Hans Brix; Linköpings universitet; []
   Keywords : constructed wetland; free water surface flow; wastewater treatment; Kenya; Sweden; vegetation; harvest; Cyperus papyrus; Echinochloa pyramidalis; mass load; phosphorus; ammonium; suspended solids; pollutant removal; hydraulics; residence time distribution; data analysis methods; Konstgjorda våtmarker; avloppsvatten; vattenrening; fosfor; ammonium; partiklar; Kenya; Sverige; växter; Cyperus papyrus; Echinochloa pyramidalis; skörd; hydraulik; dataanalysmetod;

   Abstract : Degradation of water resources has become one of the most pressing global concerns currently facing mankind. Constructed Wetlands (CWs) represent a concept to combat deterioration of water resources by acting as buffers between wastewater and receiving water bodies. READ MORE

6. 4. Start-up and operational strategies for deammonification plants : - a study with one-stage moving bed biofilm reactors treating reject water

   Author : Linda Kanders; Eva Thorin; Susanne Lackner; Mälardalens högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy- and Environmental Engineering; energi- och miljöteknik;

   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

7. 5. The multifaceted concept of oral health : Studies on a Swedish general population and perspectives of persons with experience of long-term CPAP-treated obstructive sleep apnea

   Author : Hanna Ahonen; Ulrika Lindmark; Anders Broström; Eleonor I. Fransson; Åke Tegelberg; Jönköping University; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; adults; CPAP treatment; obstructive sleep apnea; oral health; oral health determinants;

   Abstract : Oral health is a multifaceted and changeable part of our overall health and well-being as it contributes to important everyday functions such as eating, talking, and conveying feelings. Our oral health can be affected by a range of determinants, one of which is obstructive sleep apnea [OSA] treated with continuous positive airway pressure [CPAP]. READ MORE