Sökning: "Bengt Hultman"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Bengt Hultman.

  1. 1. Pharmaceutical compounds; a new challenge for wastewater treatment plants

    Författare :Maja Dlugolecka; Elzbieta Plaza; Bengt Hultman; Nicklas Paxéus; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; activated sludge; biodegradation; granular activated carbon GAC ; membrane bioreactor MBR ; pharmaceutical compounds; wastewater; Water engineering; Vattenteknik;

    Sammanfattning : Analytical analyses conducted at the Himmerfjärden WWTP (285.000 PE connected) identified 70 pharmaceutical compounds belonging to different therapeutic classes. Such organic micropollutants at low detected concentration range of µg - ng l-1 did not affect the treatment processes at WWTP. LÄS MER

  3. 2. Moringa seed and pumice as alternative natural materials for drinking water treatment

    Författare :Kebreab Afwerki Ghebremichael; Bengt Hultman; Hallvard Ödegaard; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; antimicrobial effects; coagulant protein; dual media filtration; ion exchange; Moringa oleifera; Miljöteknik; Environmental engineering; Miljöteknik;

    Sammanfattning : Pumice and the Moringa oleifera (MO) seed were investigated as alternative natural materials for drinking water treatment based on problems identified at the Stretta Vaudetto water treatment plant in Eritrea. Lab and pilot scale studies showed that pumice was a suitable alternative material for dual media filtration. LÄS MER

  4. 3. Discursive practices in strategic entrepeneurship : discourses and the use of repertoires in two firms

    Författare :Linda Höglund; Claes Hultman; Maria Mårtensson; Björn Bjerke; Bengt Johannisson; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Strategic entrepreneurship; entrepreneurship in established firms; organisational entrepreneurship; opportunity; advantage; discursive psychology; discursive practices; interpretative repertoires; positioning; discursive devices; Business Studies; Företagsekonomi;

    Sammanfattning : This is a thesis in marketing concerned with entrepreneurship in established firms and the discursive practices that take place within a perspective of strategic entrepreneurship. The study of discursive practices in this context assumes a concern with how different aspects of entrepreneurship are produced and consumed by people in text and talk. LÄS MER

  5. 4. Application of indigenous materials in drinking water treatment

    Författare :Herbert Mpagi Kalibbala; Bengt Hultman; Joaquin Martinez; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Coagulant aid; drinking water treatment; dual media filtration; Moringa oleifera; primary coagulant; trihalomethanes; volcanic ash; Water in nature and society; Vatten i natur och samhälle;

    Sammanfattning : Volcanic ash and Moringa oleifera (M. oleifera) were investigated as indigenous materials for drinking water treatment based on problems identified at Kampala and Masaka water treatment plants in Uganda. LÄS MER

  7. 5. Comparative analysis of pathogen occurrence in wastewater : management strategies for barrier function and microbial control

    Författare :Jakob Ottoson; Bengt Hultman; Roland Schertenleib; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bacteria; parasites; treatment; Water engineering; Vattenteknik;

    Sammanfattning : This project was initiated to fill knowledge gaps on the occurrence of pathogens in different streams of wastewater, e.g. greywater and domestic wastewater. LÄS MER