Sökning: "drum filtration"

Hittade 4 avhandlingar innehållade orden drum filtration.

  1. 1. Dissolved Air Flotation and Microscreening for Particle Separation in Wastewater Treatment

    Författare :Michael Cimbritz; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; disc filtration; microscreening; DAF; wastewater treatment; particle separation; Chemical technology and engineering; particle size analysis; drum filtration;

    Sammanfattning : Particle separation is one of the fundamental processes in wastewater treatment and a good understanding of the basic separation mechanisms ? sedimentation, flotation and filtration ? is critical in the design of wastewater treatment systems. Upgrading of treatment plants for enhanced primary treatment and effluent polishing are current examples of applications where effective, high-rate separation methods are of interest. LÄS MER

  3. 2. Extraction and Isolation of Hemicelluloses from Agricultural and Forestry Waste Streams

    Författare :Tobias Persson; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : New methods and products must be developed to reduce our dependency on fossil fuels, to reduce global warming. In this work, methods of extracting and isolating hemi¬celluloses from agricultural and forestry waste streams have been studied. LÄS MER

  4. 3. Microsieving in municipal wastewater treatment : Chemically enhanced primary and tertiary treatment

    Författare :Janne Väänänen; Avdelningen för kemiteknik; []
    Nyckelord :coagulation; wastewater treatment; flocculation; microsieving; control; primary treatment; tertiary treatment; coagulation; control; flocculation; microsieving; municipal wastewater treatment; primary treatment; tertiary treatment;

    Sammanfattning : Municipal wastewater treatment plants are constantly forced to make improvements. The main objectives are to reduce energy consumption, to increase the treatment capacity and to improve the effluent water quality. Microsieves in combination with chemical pretreatment can potentially fulfil these objectives. LÄS MER

  5. 4. Some aspects of adsorption in displacement washing of pulp

    Författare :Karin Mattsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : AbstractThere are many aspects on how to improve the paper pulping process. In the washing sequence improvements to decrease the discharge to the environment can be achieved by closure of the liquid system and recycling liquid from other parts pulp process. LÄS MER