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Bioresources and Bioprocessing

Table 1 Experimental ranges and levels of the Box–Behnken design

From: Degradation of a leather-dye by the combination of depolymerised wood-chip biochar adsorption and solid-state fermentation with Trametes villosa SCS-10

Variable (units)

Range and level

− 1

0

1

pH, X1

3

5

7

Initial dye concentration, X2 (mg L–1)

100

200

300

Sorbent dosage, X3 (g L–1)

1

2

3

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