Very nicely illustrated in full color, these are the slides from a 2 hour presentation made at University of Georgia back in 2007. A lot of the information is contemporary. Chilodonella isn’t doing much different, but “Bead Filters” are hardly new anymore ha ha ha. Worth a look.
https://drjohnson.com/wp-content/uploads/2019/10/ImportantConcepts_uga2007-1.pdf
