Skip to main content

Table 2 Levels and code of variables

From: Process optimization and effect of thermal, alkaline, H2O2 oxidation and combination pretreatment of sewage sludge on solubilization and anaerobic digestion

VariablesSymbolsRange and value of variables
0 (Low)1 (Medium)2 (High)
Temperature (°C)A257590
Alkalinity (pH)B81012
H2O2 concentration (mg/ g TS)C03060