Research Article
Investigation of Heavy Metal Effects on the Anaerobic Co-Digestion Process of Waste Activated Sludge and Septic Tank Sludge
Table 2
TS and VS removal performance during digestion (%).
| Day | TS | VS | TS | VS | TS | VS | TS | VS | TS | VS | SBS | ECS1 | ECS2 | ECS3 | ECS4 |
| 5 | 31.22 | 18.80 | 4.55 | 8.73 | 3.74 | 5.12 | 0.81 | 2.54 | 0.65 | 1.46 | 10 | 24.88 | 34.90 | 12.85 | 16.38 | 9.92 | 13.86 | 4.55 | 12.28 | 3.25 | 6.59 | 15 | 30.73 | 39.69 | 21.14 | 17.43 | 11.71 | 16.94 | 6.83 | 14.17 | 4.07 | 7.79 | 20 | 34.63 | 41.99 | 27.48 | 18.62 | 11.87 | 19.03 | 21.30 | 15.13 | 4.72 | 9.01 |
| | SBS | EZS1 | EZS2 | EZS3 | EZS4 | 5 | 31.22 | 18.80 | 3.58 | 3.89 | 2.28 | 3.69 | 4.39 | 5.93 | 3.25 | 2.13 | 10 | 24.88 | 34.90 | 16.10 | 14.41 | 14.80 | 12.62 | 10.08 | 16.49 | 7.32 | 9.41 | 15 | 30.73 | 39.69 | 22.28 | 15.37 | 21.63 | 15.25 | 19.84 | 17.69 | 10.08 | 13.03 | 20 | 34.63 | 41.99 | 24.07 | 16.45 | 25.85 | 17.48 | 24.23 | 20.04 | 11.71 | 13.87 |
| | SBS | ERS1 | ERS2 | ERS3 | ERS4 | 5 | 31.22 | 18.80 | 11.71 | 13.82 | 6.18 | 9.01 | 3.25 | 5.99 | 2.44 | 4.43 | 10 | 24.88 | 34.90 | 14.31 | 14.31 | 12.85 | 9.62 | 10.24 | 6.63 | 5.69 | 5.41 | 15 | 30.73 | 39.69 | 20.81 | 14.71 | 20.16 | 10.97 | 13.50 | 9.42 | 8.13 | 5.45 | 20 | 34.63 | 41.99 | 29.43 | 16.23 | 23.41 | 13.36 | 21.63 | 12.62 | 15.28 | 6.60 |
| | SBS | EPS1 | EPS2 | EPS3 | EPS4 | 5 | 31.22 | 18.80 | 7.15 | 10.43 | 6.99 | 15.55 | 8.29 | 11.38 | 1.46 | 10.66 | 10 | 24.88 | 34.90 | 12.52 | 13.03 | 18.05 | 16.50 | 12.68 | 13.36 | 3.41 | 12.62 | 15 | 30.73 | 39.69 | 24.88 | 15.43 | 28.13 | 17.69 | 19.67 | 14.18 | 7.80 | 13.82 | 20 | 34.63 | 41.99 | 28.94 | 16.36 | 29.27 | 20.05 | 27.80 | 15.14 | 16.10 | 17.66 |
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