Activated alumina coated with cerium and manganese oxides was used with ozone and hydrogen peroxide to remove humic acid, a precursor of disinfection byproducts. The catalyst removed 95.5% of humic acid under optimal conditions and stayed effective over 12 reuse cycles.
Key numbers
- Humic acid removal 95.5% under optimal conditions; above 90% after 12 cycles (abstract).
Methods (brief)
Catalyst preparation by impregnation, characterization by SEM, EDS and XPS, and bench-scale ozonation and adsorption kinetics.
Evidence fitness
Off-topic for dietary exposure: water treatment chemistry that does not support dietary exposure or toxicity claims.
Limitations
Laboratory material or biomedical study; no environmental, food or human exposure measurements.
Related evidence
Update history
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