Sökning: "chemical pretreatment"

Visar resultat 21 - 25 av 36 uppsatser innehållade orden chemical pretreatment.

1. 21. Systematic Assessment of Straw as Potential Biogas Substrate in Co-digestion with Manure

   Master-uppsats, Linköpings universitet/Industriell miljöteknik; Linköpings universitet/Tekniska högskolan

   Författare :Sutina Duong; [2014]
   Nyckelord :Biogas; substrate; straw; systematic assessment; renewable energy; biofertilizer; anaerobic digestion; Biogas; biogassubstrat; halm; systematisk utvärdering; förnybar energi; biogödsel; rötning;

   Sammanfattning : This work was carried out at Biogas Research Center (BRC) and the company Biogas in Vadstena. The aim was to systematically evaluate new substrates for biogas production. In particular, this case investigated the potential of straw in co-digestion with manure and slurry from pig, chicken and dairy. LÄS MER

3. 22. Comparative study of bark, bio-char, activated charcoal filters for upgrading grey-water : from a hygiene aspect

   Master-uppsats, SLU/Dept. of Energy and Technology

   Författare :Modibo Sidibe; [2014]
   Nyckelord :grey-water; bio-infiltration bark; bio-char; activated charcoal;

   Sammanfattning : The growth of the global population, the increasing need of water for agriculture and the increasing urbanization put great pressure on the existing resources of freshwater and the finding of news sources of freshwater become necessary. An alternative source of water can be to reuse wastewater. LÄS MER

4. 23. UV pretreatment of Alkaline Bleaching Wastewater from a Kraft Pulp and Paper Mill prior to Anaerobic Digestion in a Lab scale UASB Reactor

   Master-uppsats, Tema vatten i natur och samhälle; Filosofiska fakulteten

   Författare :Marielle Karlsson; [2013]
   Nyckelord :Anaerobic digestion; biogas; UV pretreatment; UV H2O2; UASB; EOP wastewater; lignin; kraft pulp and paper mill;

   Sammanfattning : The effects of UV pretreatment on alkaline bleaching (EOP) wastewater from a kraft pulp and paper mill were investigated prior to anaerobic digestion (AD) in an upflow anaerobic sludge blanket (UASB) reactor. The aim was to enhance the methane production, increase the reduction of total organic carbon (TOC) and determine the best UV exposure time. LÄS MER

5. 24. PEDOT Coated Viscose Fibers by Optimized OCVD Process : Washing and Stretch Sensing Properties

   Magister-uppsats, Högskolan i Borås/Institutionen Textilhögskolan

   Författare :MAJID ALI; [2013]
   Nyckelord :Viscose yarn; conductive polymers; PEDOT; ferric III chloride; ferric tosylate p-toluene sulfonate ; stretch sensors;

   Sammanfattning : Electroactive textile fibers are key components in smart and interactive textile applications. In previous research on textile base conductive fibers, viscose fibers were coated with poly (3,4-ethylenedioxythiophne) (PEDOT) using oxidative chemical vapor deposition (oCVD) technique[1]. LÄS MER

7. 25. Optimization of NMMO pre-treatment of straw for enhanced biogas production

   Magister-uppsats, Högskolan i Borås/Institutionen Ingenjörshögskolan

   Författare :Md. Moniruzzaman Akhand; Abraham Méndez Blancas; [2012]
   Nyckelord :NMMO; Lignocellulose; Biogas; Straw;

   Sammanfattning : Modern society depends on fossil fuels to fulfill the increasing energy demand, which could cause further damages in the environment. Therefore, it is mandatory to develop technologies for the production of efficient alternative renewable energy sources, like biofuels. LÄS MER