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Visar resultat 1 - 5 av 482 avhandlingar som matchar ovanstående sökkriterier.

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

   Författare :TOBIAS HEY; Avdelningen för kemiteknik; []
   Nyckelord :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;

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

3. 2. Uppfostringsanstalten : Om tvång i föräldrars ställe

   Författare :Claes Levin; Socialhögskolan; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social problems and welfare; theory of social work; Correctional Treatment; Reformatory; Residential Treatment; Treatment Organizations; Juvenile Delinquency; Child Care; Social Institutions; Human service organizations; People-Changing Organizations; Treatment; Social changes; Incarceration; national insurance; teorier om socialt arbete; Sociala förändringar; Sociala problem; social välfärd; socialförsäkring;

   Sammanfattning : The aim of the present study is to find the factors and conditions that generate the success of the reformatory as a social institution and, at the same time, its well-known failure as a treatment organization. I try to understand why organizations like the reformatory exist and what meaning they have in our society. LÄS MER

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

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

   Sammanfattning : 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. LÄS MER

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

   Författare :Hristina Bodin; Karin Tonderski; Jesper Persson; Stefan Weisner; Per Milberg; Hans Brix; Linköpings universitet; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

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

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

   Sammanfattning : 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. LÄS MER