SRP342011 PRJNA772528 Zero-valent iron (ZVI)-Fenton based process affects the total load of human pathogenic bacteria in secondary treated municipal wastewater We carried out a series of experiments testing the efficacy of ZVI-Fenton vs. treatment with H2O2 alone in the removal of potentially pathogenic bacteria from secondary treated wastewater acidified at pH 5 with H3PO4. Treatments were compared in terms of bacterial community composition and relative abundance of human potentially pathogenic bacteria. Negative controls are filtration controls.