B. Aube. Innovations in the Design of the MacLeod High-Density Sludge (HDS) Treatment Plant. Presented at the 2019 workshop.
Hedin R.S.. Successful Passive Treatment of Coal Mine Drainage, a 2010 Update. Presented at the 2010 workshop.
- Passive Treatment of Coal Mine Drainage (Bureau of Mines Information Circular 9389, 1994)
- Iron Removal by a Passive System Treating Alkaline Coal (Mine Drainage, Mine Water Environment, 2008, volume 27, pages 200-209)
D. Skruch, A. Boyer, S. Barabash and R.V. Nicholson. When is Water Treatment Not Forever? Exploring the Actual Availability of Sulphide and Carbonate Mineral Contents in Acid Generating Rock. Presented at the 2019 workshop.