Removal of Ethanethiol Gas by Iron Oxide Porous Ceramsite Biotrickling Filter

Table 1

The result of orthogonal experiments.

Factor	Spray density (m^3⋅m^−2 h^−1)	EBRT (s)	Inlet concentration (mg⋅m^−3)	Outlet concentration (mg⋅m^−3)	RE (%)
1	0.08	34.34	200	86.62	56.69
2	0.08	68.67	300	133.14	55.62
3	0.08	137.34	400	182.08	54.48
4	0.24	34.34	300	113.91	62.03
5	0.24	68.67	400	159.88	60.03
6	0.24	137.34	200	71.78	64.11
7	0.39	34.34	400	159.81	60.05
8	0.39	68.67	200	71.74	64.13
9	0.39	137.34	300	109.89	63.37
Average 1	55.60	59.59	61.64
Average 2	62.06	59.93	60.34
Average 3	62.52	60.65	58.19
Range	6.92	1.06	3.45