1. Authors: Patrick Zastrow, Kevin Hicks, Mohsen Manjili, Marcia Silva*
Regeneration and Reuse of Natural Porous Filter Material Following the Capture and Recovery of Phosphate Ions
Authors: Patrick Zastrow, Kevin Hicks, Mohsen Manjili, Marcia Silva*

2. Eutrophication in Wisconsin waters
Why It Matters
Eutrophication in Wisconsin waters
Closed Beach – Madison, WI
Veteran’s Park – Milwaukee, WI

3. Method: Regeneration and Recovery of Phosphorous
To be viable, regenerated material must:
Maintain >75% total adsorption capacity of initial sample
Not desorb a detectable level of functional group ions

4. Looking Forward
Reusing filtration material up to 10X before refunctionalizing
Lowering costs of fabrication and filtration
Work with local farm to test large- scale filtration
Develop viable large-scale regeneration and recovery process
Desorption Procedure - Sonication
Saturation Procedure – Column Method

5. Acknowledgements
We thank Nicholas Fults, Chris Kudlata, Louis Chapman, and Alice Lecus for support on general laboratory procedures and insightful discussions. This work was supported  by Kieser & Associates (grant N0. AAC1496) under a Great Lakes Protection Fund grant.

6. Bibliography
[1] Nguyen Tran, H., You, S.J., Hosseini-Bandegharaei, A., Chao, H. (2017). Mistakes and inconsistencies regarding adsorption of contaminants from aqueous solutions: A critical review. Water Research(120),
[2] Chiou, C.T. (2003). Fundamentals of the Adsorption Theory. Partition and Adsorption of Organic Contaminants in Environmental Systems(pp ) John Wiley and Sons.
[3] Dabrowski, A. (2001). Adsorption-from theory to practice. Advances in Colloid and Interface Science, 93,