Research Article

Modeling and Multiresponse Optimization for Anaerobic Codigestion of Oil Refinery Wastewater and Chicken Manure by Using Artificial Neural Network and the Taguchi Method

Figure 3

S/N responses for different formulations for (a) biogas production yield, (b) biomethane production yield, and (c) CODS removal rate.
(a)
(b)
(c)