“CONVERSION OF CORN ETHANOL WASTE TO VALUE-ADDED …

“CONVERSION OF CORN ETHANOL WASTE TO VALUE-ADDED PRODUCTS BY ALGAE”

Kelvin Elgar

Dr. Jeffryes

Background• 94% of ethanol is produced from

corn

• Corn ethanol used in gasoline

• Becoming a more viable alternative energy

• Corn ethanol refineries produce waste stillage

Purpose• Measure the efficacy of

Chlorella Vulgaris as a

means of stillage

treatment

• Determine the best

conditions for stillage

removal and biomass

growth

• Use C. vulgaris as a food

source for crayfish

Methodology- Scaling Up the Process

Characterization of the Data

μ = ln (α2/α1)/ (t2 − t1)

For Biomass Growth

For Nutrient Uptake

Specific Growth Rate (μ): Biomass Productivity (P):

P = (Xi - X0) / ti

R.E = (Ci - Cn) / Ci * 100

Removal Efficiency, R.E. (%): Elimination Capacity, E.C:

E.C = (Ci - Cn) / tn-i

Results and Concluding Remarks

Results and Concluding Remarks

Results and Concluding Remarks

Acknowledgements

This project would not have been possible without these individuals. I would like to thank…

• My mentor: Dr. Jeffryes

• Grad student: Ankit Nayar

• Melody Y. for helping with the research

• Dr. Bahrim for his patience and help with this project

• The entire OUR office and staff