Downey, J. – J. Downey and L. Twidwell, “Ferrihydrite and Aluminum-Modified Ferrihydrite Enhanced High Density Sludge Treatment for Removing Dissolved Metals from Acid Rock Drainage,” Proceedings REWAS 2008 Global Symposium on Recycling, Waste Treatment and Clean Technology, TMS, October 12-15, 2008, Cancun, Mexico (ISBN: 978-0-87339-726-1), pp. 1397 - 1406.

Downey, J. – C. Young and J. Downey, “Splash Technology: Applying the Design-for-Recyclability Concept to Spent Potlining Management,” Proceedings REWAS 2008 Global Symposium on Recycling, Waste Treatment and Clean Technology, TMS, October 12-15, 2008, Cancun, Mexico (ISBN: 978-0-87339-726-1), pp. 277 – 284.

Downey, J. – J. P. Downey, A. Bose, G. L. Fredrickson, and A. Jha, “A Magnetic-Field Reactor for Metal Removal from Dilute Wastewater Streams,” Hydrometallurgy 2008 – Proceedings of the Sixth International Symposium, SME, Phoenix, Arizona, August 17-20, 2008 (ISBN: 978-0-87335-266-6), pp. 162-168.