Table 5.

Mean efficiency and kinetic order degradation of PCE at various pH, subjected to US reactor

C 0 (mg/L)	pH	Efficiency (%)	K (1/min)	Reaction order
10	9	57.31	0.0094	First
10	7	64.54	0.0148	First
10	5	65.31	0.0162	First
3	9	58.27	0.0155	Second
3	7	68.56	0.0157	Second
3	5	70.31	0.0184	Second
0.3	9	29.38	0.043	Second
0.3	7	35.57	0.037	Second
0.3	5	39.42	0.0606	Second