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Chemicals used in the study.
| Reagents | Manufactures | Purity (%) |
|---|---|---|
| Used for operating the treatment system | ||
| FeSO4.7H2O | Sunkan Chemicals (China) | 98 |
| H2O2 | Taekwang Industrial (Korea) | 50 |
| NaOH | Gansu Nabowang Chemical (China) | 99 |
| HCl | Viet Tri Chemical (Vietnam) | 35 |
|
| ||
| Used for analyzing physicochemical variables | ||
| All chemicals used for analysis | Merck (Germany) | ≥99 |
