Analysis of variance for the effect of QZ-7 concentration on the removal efficiency of heavy metals.
| Sum of squares | df | Mean square | F | Sig. | |
|---|---|---|---|---|---|
| Between groups | 740.568 | 5 | 148.114 | 35.041 | 0.000 |
| Within groups | 50.723 | 12 | 4.227 | ||
| Total | 791.291 | 17 |
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