Location
Old Dominion University, Learning Commons at Perry Library, West Foyer
Start Date
4-8-2017 8:30 AM
End Date
4-8-2017 10:00 AM
Description
As interest in algal biofuel grows, the need to explore diverse nutrient sources for growing algae becomes apparent. Struvite and Hydroxyapatite (HAP) were precipitated after flash hydrolysis. The leftover aqueous phase (AP) could serve as nutrients source for algae cultivation and the potential reuse of this waste stream is promising. To test this, 12 bottles of Scenedemus sp., four of Struvite, four of HAP, and four control AM-14 synthetic media were cultivated. 10% of the Phosphorus in the synthetic media was replaced with phosphorous from the struvite AP, and 10% of the nitrogen in the synthetic media was replaced with HAP AP. The bottles with struvite AP replacement experienced higher algae growth compared to the control and HAP AP which experienced very slow growth. Based on the results, struvite AP appears to be a viable nutrient replacement for algae cultivation while HAP AP toxicity should be further investigated.
Presentation Type
Poster
Included in
Biochemistry Commons, Bioresource and Agricultural Engineering Commons, Plant Sciences Commons
Testing Effectiveness of Aqueous Phases from Struvite and Hydroxyapatite Mineral Precipitation as Algal Nutrient Sources
Old Dominion University, Learning Commons at Perry Library, West Foyer
As interest in algal biofuel grows, the need to explore diverse nutrient sources for growing algae becomes apparent. Struvite and Hydroxyapatite (HAP) were precipitated after flash hydrolysis. The leftover aqueous phase (AP) could serve as nutrients source for algae cultivation and the potential reuse of this waste stream is promising. To test this, 12 bottles of Scenedemus sp., four of Struvite, four of HAP, and four control AM-14 synthetic media were cultivated. 10% of the Phosphorus in the synthetic media was replaced with phosphorous from the struvite AP, and 10% of the nitrogen in the synthetic media was replaced with HAP AP. The bottles with struvite AP replacement experienced higher algae growth compared to the control and HAP AP which experienced very slow growth. Based on the results, struvite AP appears to be a viable nutrient replacement for algae cultivation while HAP AP toxicity should be further investigated.
Comments
Research Advisor: Dr. Sandeep Kumar
Keywords: Bio-fuels, Nutrient recycle, Algae, Hydroxyapatite, Struvite