Search for dissertations about: "pretreatment"

Showing result 6 - 10 of 369 swedish dissertations containing the word pretreatment.

2. 6. 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

4. 7. Pretreatment of bagasse with sodium hydroxide and hydrogen peroxide in chemimechanical pulping

   Author : Fuhua Peng; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pulp properties; hydrogen peroxide; bryghtness; sodium hydroxide; newsprint; impregnation; chemi-mechanical pulp; specific energy; pretreatment; bagasse;

   Abstract : .... READ MORE

5. 8. Biogas Production from Citrus Wastes and Chicken Feather : Pretreatment and Co-digestion

   Author : Gergely Forgács; Högskolan i Borås; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; anaerobic digestion; pretreatments; co-digestion; economic analyses; citrus wastes; feather; Energi; material; Resursåtervinning; Resource Recovery;

   Abstract : Anaerobic digestion is a sustainable and economically feasible waste management technology, which lowers the emission of greenhouse gases (GHGs), decreases the soil and water pollution, and reduces the dependence on fossil fuels. The present thesis investigates the anaerobic digestion of waste from food-processing industries, including citrus wastes (CWs) from juice processing and chicken feather from poultry slaughterhouses. READ MORE

6. 9. Impact of chronic total occlusions, arterial access site, and pretreatment with antiplatelet drugs on mortality in patients with ischemic heart disease: A report from the SWEDEHEART registry

   Author : Christian Dworeck; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Acute coronary syndrome; acute myocardial infarction; coronary artery disease; mortality; chronic total occlusion; pretreatment; antiplatelet; P2Y12; radial access; PCI; SWEDEHEART; SCAAR; RIKS-HIA; cardiology;

   Abstract : Impact of chronic total occlusions, arterial access site and pretreatment with antiplatelet drugs on mortality in patients with ischemic heart disease: A report from the SWEDEHEART registry Background Treatment of ischemic heart disease has advanced substantially in the past half-century. However, despite these achievements the survival rates in high-income countries such as Sweden have reached a plateau in the last decade. READ MORE

7. 10. Bioethanol Production: Pretreatment and Enzymatic Hydrolysis of Softwood

   Author : Charlotte Tengborg; Avdelningen för kemiteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; recirculation of process streams; detoxification; inhibition; hydrolysis conditions; enzymatic hydrolysis; Ethanol production; steam pretreatment; softwood; Carbochemistry; petrochemistry; fuels and explosives technology; Petrokemi; bränslen; sprängämnen;

   Abstract : The enzymatic hydrolysis process can be used to produce bioethanol from softwood, which are the dominating raw material in the Northern hemisphere. This thesis deals with the development of the process focusing on the pretreatment and the enzymatic hydrolysis stages. READ MORE