Treatment performance comparison between regular O3–BAC and O3–BAC with rear sand filtration: verification in a full-scale study

Environmental Sciences Europe

Table 4 Concentration of the detected pesticides in each treatment process (ng/L)

	Machette	HCB	p,p′-DDT	Dimethoate	Fenobucarb	Dichlorvos	Acetochlor	Atrazine
Sand–O₃–BAC
RW	24.58	2.33	66.52	35.17	89.29	70.88	73.37	560.94
SE	22.88	1.78	0.00	30.19	78.96	64.82	67.82	544.09
SF	14.34	1.62	0.00	9.40	60.96	45.52	57.71	484.94
PO	14.13	1.78	0.00	8.65	31.01	36.88	50.80	352.08
BAC	10.52	0.71	0.00	6.43	17.01	25.66	34.05	104.71
O₃–BAC–sand
RW	36.68	1.78	6.54	17.08	21.38	53.09	162.76	542.23
SE	24.98	1.31	11.48	18.17	22.53	56.90	140.62	444.58
PO	21.39	1.46	5.96	12.59	10.80	53.73	119.76	416.54
BAC	11.69	1.17	0.00	5.13	8.75	48.00	67.45	141.70
SF	13.01	0.99	0.00	3.47	23.23	40.23	53.53	117.70