Topics in Current Chemistry (2020) 378:7
1 3
Although HPC was found to be effective for the inactivation of pathogens and
the degradation of CECs in secondary treated urban wastewater, it is not competitive with consolidated technologies (namely ozonation) due to technological limitations [103, 150], which rank it at TRL 4. Even if such technological limitations
are successfully addressed in the future, the absence of a specific regulation on
the release of CECs into the environment (except in Switzerland) or in wastewater
treated for reused discourages urban WWTP managers from replacing conventional
tertiary treatments (mainly disinfection by chlorine, peracetic acid or UV radiation)
Fig. 7 a Schematic representation of synthesis and photocatalytic tests using ZnO on glass spheres. b
COD behavior as a function of run time during the treatment of tannery real wastewater using ZnO on
glass spheres [184]
Fig. 8 Technology readiness level scale [185]
252
Reprinted from the journal
1 3
Although HPC was found to be effective for the inactivation of pathogens and
the degradation of CECs in secondary treated urban wastewater, it is not competitive with consolidated technologies (namely ozonation) due to technological limitations [103, 150], which rank it at TRL 4. Even if such technological limitations
are successfully addressed in the future, the absence of a specific regulation on
the release of CECs into the environment (except in Switzerland) or in wastewater
treated for reused discourages urban WWTP managers from replacing conventional
tertiary treatments (mainly disinfection by chlorine, peracetic acid or UV radiation)
Fig. 7 a Schematic representation of synthesis and photocatalytic tests using ZnO on glass spheres. b
COD behavior as a function of run time during the treatment of tannery real wastewater using ZnO on
glass spheres [184]
Fig. 8 Technology readiness level scale [185]
252
Reprinted from the journal