Understanding Biofilm Through Oxidative Control Strategies

A system can hold what looks like an adequate disinfectant residual and still grow persistent biofilm. Raising the oxidant dose may help for a while, but the problem tends to return. The extracellular matrix explains much of it: it acts as a physical and chemical barrier, and it adds its own demand on the treatment. Emma Flanagan, a sanitary engineer and subject matter expert in mineral oxychloride advanced oxidation processes, argues that the name of the oxidant says little about what actually does the work. The reactive species that form once it enters water differ in speed, selectivity, and lifespan, and oxidation potential captures none of that. Part 1 of a four-part series. Read on to see how she builds the case.