Sökning: "fertilizer use"

Visar resultat 16 - 20 av 46 avhandlingar innehållade orden fertilizer use.

1. 16. Probing Atomic Scale Structure and Catalytic Properties of Cobalt Oxide Model Catalysts

   Författare :Alif Arman; Synkrotronljusfysik; []
   Nyckelord :catalysis; model systems; Co3O4 111 ; Co3O4 100 ; CoO 111 ; X-ray photoelectron spectroscopy; Scanning tunneling microscopy; Fysicumarkivet A:2017:Arman;

   Sammanfattning : Cobalt oxides are known to be active catalysts for a number of chemical reactions, but very little is known about the atomic scale processesresponsible for the activity. The research presented in this thesis is focused on obtaining an atomic scale understanding of the chemistry of wellcharacterizedcobalt oxide model catalyst surfaces consisting of pristine and defective CoO and Co3O4 thin films with the (111) and (100)terminations supported by Ag(100), Ir(100), and Au(111) single crystal surfaces. LÄS MER

3. 17. Investigation of nitrogen recovery from concentrated wastewater

   Författare :Aubrey Beckinghausen; Monica Odlare; Eva Thorin; Sebastian Schwede; Ershad Ullah Khan; Mälardalens universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nitrogen; ammonium; recovery; circular economy; wastewater; Energy- and Environmental Engineering; energi- och miljöteknik;

   Sammanfattning : Nitrogen recovery from wastewater treatment for fertilizers is a research topic that exists at the intersection of multiple topics important to the future of sustainable society. First, nitrogen recovery from wastewater implies a departure from the current methods of nitrogen mitigation, which involve nitrogen removal by conversion of various aqueous species to inert nitrogen gas. LÄS MER

4. 18. Automated Manufacture of Fertilizing Agglomerates from Burnt Wood Ash

   Författare :Thomas Svantesson; Industriell elektroteknik och automation; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adaptive Filtering; Ash Recycling; Change Detection; System Identification; Real-Time Control; Robust Control; Process Design; Control System Design; Carbon In Fly Ash CIFA monitoring; PID-Control; Agglomeration Techniques; Moisture Control; Dehydration Techniques.; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

   Sammanfattning : In Sweden, extensive research is conducted to find alternative sources of energy that should partly replace the electric power production from nuclear power. With the ambition to create a sustainable system for producing energy, the use of renewable energy is expected to grow further and biofuels are expected to account for a significant part of this increase. LÄS MER

5. 19. Recent transitions in Ethiopian homegarden agroforestry : driving forces and changing gender relations

   Författare :Mersha Sahilu; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Homegarden agroforestry was a dominant land use practice in Southern Nations, Nationalities and People's Regional State (SNNPRS) Ethiopia until the 1990s. It has been known for its diversity, ecosystem balance and sustainability. LÄS MER

7. 20. Fungi-based biorefinery model for food industry waste : progress toward a circular economy

   Författare :Pedro Souza Filho; Satinder Kaur Brar; Högskolan i Borås; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; filamentous fungi; circular economy; biorefinery; food industry; fungal biomass; bioplastic; resource recovery; Resource Recovery; Resursåtervinning;

   Sammanfattning : The food industry, one of the most important industrial sectors worldwide, generates large amounts of biodegradable waste with high organic load. In recent years, the traditional management methods to treat this waste (e.g., landfilling) have been considered not suitable because they do not exploit the potential of the waste material. LÄS MER