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Visar resultat 1 - 5 av 38 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Unlocking Sustainability in Wastewater Denitrification through Waste-Derived Volatile Fatty Acids

    Författare :Tugba Sapmaz; Mohammad J Taherzadeh; Eric D. Van Hullebusch; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; volatile fatty acids; wastewater denitrification; ammonium removal; sustainable carbon source; Resource Recovery; Resursåtervinning;

    Sammanfattning : Carbon sources play a critical role in biological nitrogen removal during wastewater treatment, where strict total nitrogen limits on effluent discharge apply. Organic carbon sources serve as electron donors in the denitrification for heterotrophic denitrifiers. LÄS MER

  3. 2. Methane and Volatile Fatty Acids Production from Toxic Substrate

    Författare :- Lukitawesa; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; toxic substrate; methane; volatile fatty acid; anaerobic digestion; membrane bioreactor; factor; tubular membrane; two-stage digestion; Resource Recovery; Resursåtervinning;

    Sammanfattning : Challenges caused by climate change and global warming have created a demand for improvements in resource recovery and the promotion of a circular economy. Waste management is one such challenge for which more recycling options are required for producing materials and energy sources from wastes. LÄS MER

  4. 3. Volatile Fatty Acids as a Key to Sustainability and Circularity in Polyhydroxyalkanoates Production

    Författare :Hoang Danh Vu; Dan Åkesson; Pau-Loke Show; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bioplastics; food waste; polyhydroxyalkanoates; volatile fatty acids; immersed membrane bioreactor; acidogenic fermentation; Resource Recovery; Resursåtervinning;

    Sammanfattning : The negative consequences of plastic pollution on both environmental and socio-economic aspects have motivated the development of sustainable and renewable materials to replace the petroleum-based plastic. Polyhydroxyalkanoates (PHAs), which are bioplastics, having an outstanding biodegradability and rather comparable thermal and mechanical properties, are potential alternatives for the replacement of conventional plastics. LÄS MER

  5. 4. Developing a food waste-based volatile fatty acids platform using an immersed membrane bioreactor

    Författare :Steven Wainaina; Jukka Rintala; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; food waste; anaerobic digestion; volatile fatty acids; immersed membrane bioreactor; edible filamentous fungi; Resource Recovery; Resursåtervinning;

    Sammanfattning : Approximately 1.3 billion tons of food waste is produced globally every year. In principle, all the resources in the supply chain are lost (e.g. LÄS MER

  7. 5. Enhancement of Volatile Fatty Acid Production from Dairy Wastewater

    Författare :Merve Atasoy; Zeynep Cetecioglu; Juan Lema; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Volatile fatty acid; mixed culture fermentation; pure culture; bioaugmentation; bacterial community; Flyktiga fettsyror; jäsning med blandkultur; renkultur; bioaugmentering; bakteriesamhälle; Chemical Engineering; Kemiteknik;

    Sammanfattning : Resource recovery from waste-streams is a highly promising approach to meet with urbanization and modernization consequences. Rapid human population growth, expanding industrialization and excessive consumption of resources lead to increasing demand for raw materials and energy sources, and an escalation of greenhouse gas emission. LÄS MER