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Table 1 Results of the mathematical maximization of the correlations obtained (Eqs. 2, 3 and 4), with Eqs. (5 and 6) as constrain values

From: Efficiency of integrated electrooxidation and anaerobic digestion of waste activated sludge

Variables maximized Initial total solids (%)
1.0 2.0 3.0 3.1 3.2 3.4 3.5
Current density (mA/cm2) 25.28 27.58 29.88 30.11 30.34 30.8 31.03
BMPmax (N-L CH4/kg VS) 219.9 278.2 332.3 337.5 342.6 352.8 357.8
COD removal (%) 45.6 50.8 57.6 58.4 59.2 60.8 61.6
VS removal (%) 47.4 39.8 25.9 24.1 22.3 18.5 16.5