The water quality is as follows:
Serial Number | Indicator | Concentration |
| 1 | Free acidity (as NaOH) mg/ | 16500 |
| 2 | Salt content（mg/L） | 80000 |
| 3 | Copper ion（mg/L） | 8000 |
| 4 | CODcr（mg/L） | 25000 |
Adopted waste acid treatment process:
After recovery, the quality of the recovered acid is as follows:
Serial Number | Indicator | Concentration |
| 1 | Free acidity (as NaOH) mg/ | 150000 |
| 2 | Salt content（mg/L） | 100 |
| 3 | Copper ion（mg/L） | 2 |
| 4 | CODcr（mg/L） | 5000 |
