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Table 3 Mean concentrations and removal of antidepressants contained in final effluent following ozonation

From: Ozone oxidation of antidepressants in wastewater –Treatment evaluation and characterization of new by-products by LC-QToFMS

Compounds

Conc. (n=2) Ozone 5 mg/L

Conc. (n=2) Ozone 9 mg/L

 

Effluent (ng/L)

Disinfected effluent (ng/L)

Removal Eff. (%)

Effluent (ng/L)

Disinfected effluent (ng/L)

Removal Eff. (%)

CIT

186 ± 27

123 ± 11

34

148 ± 16

56 ± 1

62

SER

14 ± 2

–

100

9.4 ± 0.1

–

100

DSER

23 ± 1

–

100

19 ± 3

–

100

AMI

106 ± 5

36 ± 1

66

195 ± 11

15 ± 1

92

NTRI

18 ± 1

0.18 ± 0.01

99

19 ± 4

–

100

VEN

2194 ± 191

963 ± 43

56

3144 ± 107

986 ± 27

69

DVEN

2319 ± 11

–

100

3448 ± 279

–

100

CAR

716 ± 4

12 ± 1

98

714 ± 13

–

100

FLU

6.3 ± 0.8

–

100

9.5 ± 0.6

–

100

NFLU

11 ± 2

–

100

6.5 ± 0.2

–

100

PAR

9.0 ± 1.3

–

100

13 ± 4

–

100

MIR

104 ± 1

1.6 ± 0.1

98

109 ± 3

–

100

DMIR

41 ± 4.1

3.3 ± 0.4

92

25 ± 1

–

100

  1. Note: Measured residual O3 concentrations for 5, 9 and 13 mg/L of O3 were respectively 0.000, 0.036 and 0.514 mg/L.
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BMC Chemistry

ISSN: 2661-801X

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