The results of sterilizing E. coli under various. It is obvious that thousands of colonies can be observed in the Petri dishes incubated with untreated substrates. After treated, the colony counts decrease markedly. The survival curve at different conditions is shown in Figure 4b. It is remarkable that the disinfection efficiency is 90.8%, 96.5% and 98.3%, respectively. After incubation for one week, the results of MMA removal under different condition. It is obvious that algae cell in the solution treated with MMO-Ti-RGO electrode declined most sharply. Therefore the MMO-Ti-RGO electrode was defined as an optimal electrode for disinfection and algae removal.