The is a PowerPoint about Biochar as a substitute for Activated Carbon and the differences between the two, by Lee Enterprises Consulting expert, Bill Naylor, an activated carbon and biochar subject matter expert with over 25 years of experience with integration of these adsorptive media into new and existing treatment systems.  Bill worked for the largest activated carbon manufacturer in the world, for 21 years as a Senior Applications Engineer. This is a must read for anyone dealing with biochar and activated carbon.