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

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

  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
  1. RW raw water, SE sedimentation, SF sand filtration, PO post-ozonation