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Phosphorus Recovery from Microbial Biofuel Residual Using Microwave Peroxide Digestion and Anion Exchange


Abstract Biofuel from microbial biomass is a viable alternative to current energy production practices that could mitigate greenhouse gas levels and reduce dependency on fossil fuels. Sustainable production of microbial biomass requires efficient utilization of nutrients like phosphorus (P). P is a limited resource which is vital for global food security. This paper seeks to understand the fate of P through biofuel production and proposes a proof-of-concept process to recover P from microbial biomass. The photosynthetic cyanobacterium Synechocystis sp. PCC 6803 is found to contain 1.4% P by dry weight. After the crude lipids are extracted for biofuel processing, 92% of the intercellular P is found within the residual biomass. Most intercellular P is... (more)
Created Date 2012
Contributor Gifford, James Mckay (Author) / Westerhoff, Paul (Advisor) / Rittmann, Bruce (Committee member) / Vannela, Ravindhar (Committee member) / Arizona State University (Publisher)
Subject Environmental engineering / Anion Exchange / Iron Nanoparticles / Microbial Biofuel / Microwave Oxidation / Nutrient Recycling / Phosphorus Recovery
Type Masters Thesis
Extent 47 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note M.S. Civil and Environmental Engineering 2012
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis