Search for dissertations about: "7 wastes"

Showing result 1 - 5 of 43 swedish dissertations containing the words 7 wastes.

2. 1. A systems engineering approach to national solid waste management

   Author : Maria Ljunggren Söderman; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; solid wastes agrovoc; waste management agrovoc; Solid waste management; sweden agrovoc; Optimisation; Strategic planning; simulation models agrovoc; urban wastes agrovoc; planning agrovoc;

   Abstract : .... READ MORE

4. 2. Citrus Waste Biorefinery: Process Development, Simulation and Economic Analysis

   Author : Mohammad Pour Bafrani; Mohammad Pourbafrani; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; process simulation; encapsulated yeast; Citrus wastes; economic analysis; computational fluid dynamic simulation; pectin; limonene; methane; ethanol;

   Abstract : The production of ethanol and other sustainable products including methane, limonene and pectin from citrus wastes (CWs) was studied in the present thesis. In the first part of the work, the CWs were hydrolyzed using enzymes – pectinase, cellulase and β-glucosidase – and the hydrolyzate was fermented using encapsulated yeasts in the presence of the inhibitor compound ‘limonene’. READ MORE

5. 3. Biological Pretreatment and Dry Digestion Processes for Biogas Production

   Author : Regina Patinvoh; Thierry Ribeiro; Högskolan i Borås; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid wastes; Dry anaerobic digestion; Textile bioreactor; Plug flow bioreactor; Digestate; Process stability; Pretreatment; Co-digestion; Mesophilic; Resource Recovery; Resursåtervinning;

   Abstract : Biogas technology has been used quite extensively to generate renewable energy from organic wastes while also recycling nutrients in the wastes and reducing harmful emissions. However, the challenges of low biogas yield from recalcitrant and inhibitory solid wastes together with high construction and operation costs of bioreactors have impeded optimal performance through this process. READ MORE

6. 4. Separation of solid wastes for recycling and utilization

   Author : Huiting Shen; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

   Abstract : With depletion of the earth´s natural resources and growth in solid wastes, increasing emphasis must be placed on recycling. Recycling and utilization of solid wastes has become an active subject. The present thesis was focused on this area. READ MORE

7. 5. Recycling and durability of PVC materials focusing on pre- and post-consumer wastes from building products

   Author : Nazdaneh Yarahmadi; SP – Sveriges Tekniska Forskningsinstitut *(2016-12-31) SP – Sveriges Tekniska Forskningsinstitut; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Accelerated ageing; Activation energy; Annealing; Cables; Dehydrochlorination; Dismantling; DSC; Elongation at break; Emissions; Energy recovery; Flooring; Heat ageing; Lifetime; Orientation; Physical ageing; Plasticised PVC; Plasticiser depletion; Profiles; Recycling; Repeated extrusion; Residual stability; Rigid PVC; Sustainable building; Chlorination; Degradation; Durability; Mechanical properties; Plastic building materials; Plasticizers; Stabilizers agents ; Tensile properties; Molecular level; Polyvinyl chlorides;

   Abstract : The potential for recycling various polymeric materials contained within buildings constructed in the late 1960s and 1970s in Sweden was investigated during the course of this work. Three residential blocks were studied to establish the quantity of materials available for recycling, to investigate the difficulty in and time needed for the dismantling of the buildings, the degree of purity of the materials, and the possibility of separating the materials. READ MORE