Research Article
Bioremediation of Polycyclic Aromatic Hydrocarbons in Contaminated Soils Using Vermicompost
Table 1
The physicochemical analysis of the vermicompost.
| No. | Parameter | Standard limit | Results | Class 1 | Class 2 |
| 1 | Organic matter | Min. 35% | Min. 25% | 39% | 2 | Organic carbon | Min. 20% | Min. 10% | 23% | 3 | Organic nitrogen | Min. 1% | Min. 0.5% | 1.5% | 4 | C/N ratio | 15–25 | 10–15 | 15.1 | 5 | Potassium | Min. 1% | Min. 0.5% | 2.3% | 6 | Electrical conductivity | Max. 8 ds/m | Max. 10 ds/m | 2.35 ds/m | 7 | pH | 6.5–8.5 | 6.5–8.5 | 7.78 | 8 | Moisture | 20–30 | 20–30 | 39 | 9 | Ash | Max. 50% | Max. 50% | 63 | 10 | Sodium | — | — | 1.2% | 11 | Saturation percentage | — | — | 86 | 12 | Percentage of neutralizing agents | — | — | 19 |
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