Artificial Neural Network Modeling for Biological Removal of Organic Carbon and Nitrogen from Slaughterhouse Wastewater in a Sequencing Batch Reactor

Table 6

Comparison of ANN Model “A” output and experimental values for test data set.

Serial number	COD removal efficiency (%)		NH4^+-N removal efficiency (%)		Error (%)
	Experimental values	ANN predicted values	Experimental values	ANN predicted values	COD	NH4^+-N
1	86.45	87.32	86.92	85.54	−0.87	1.38
2	89.33	90.52	85.83	87.22	−1.19	−1.39
3	88.65	86.15	82.97	84.19	2.50	−1.22
4	90.42	88.95	84.22	85.12	1.47	−0.90
5	85.22	84.55	82.85	82.12	0.67	0.73
6	84.29	87.15	85.52	84.28	−2.86	1.24
7	90.22	89.51	88.25	86.45	0.71	1.80