Research Article
Relevance of Toxicity Assessment in Wastewater Treatments: Case Study—Four Fenton Processes Applied to the Mineralization of C.I. Acid Red 14
Table 1
Results for the mineralization and toxicity tests.
| Sample | TOC | EC50 | TII50 (Equitox/m3) | Blank TII50 |
| Fe3+/H2O2 | 73 ± 7% | Nontoxic | Fe2+/H2O2 | 91 ± 4% | 6 ± 3% | 20 ± 11 | 28 | Fe(III)-zeolite Y/H2O2 | 86 ± 1% | 2.3 ± 0.3% | 45 ± 6 | 48 | Fe(II)-zeolite Y/H2O2 | 84 ± 6% | 24 ± 8% | 4 ± 1 | 7 |
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