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Table 1 Operational conditions for hybrid and conventional systems in saline wastewater treatment

From: Treatment of saline municipal wastewater using hybrid growth system

Days

TDS (mg/l)

HRT (h)

% Qin

COD (mg/l)

BOD5 (mg/l)

NH+ 4 (mg/l)

TP (mg/l)

pH

EC (μs/cm)

Cl(mg/l)

1–20

0.5

2

25

414 ± 40

242.6 ± 3.7

27.3 ± 5

11.8 ± 1.7

8 ± 0.5

9030 ± 121.2

2438.3 ± 131.7

21–40

0.5

4

50

413 ± 11.1

240 ± 11.7

25.6 ± 6.1

11.1 ± 2.4

7.9 ± 0.3

8966.6 ± 152.7

2422.3 ± 133.6

41–60

0.5

6

75

383.3 ± 7.6

253.3 ± 17.5

16.1 ± 1

10 ± 2

8 ± 0.3

9073.3 ± 125

2463.3 ± 62.5

61–80

1

2

50

396 ± 37.3

262.3 ± 37.6

20 ± 2

12.3 ± 0.6

8.3 ± 0.5

18083.3 ± 104.08

5197.3 ± 92.6

81–100

1

4

75

439.3 ± 27.6

244 ± 13.8

26 ± 3.6

8.5 ± 0.6

7.9 ± 0.5

18,000 ± 100

5257.3 ± 161.1

101–120

1

6

25

418.3 ± 55.3

230.3 ± 17.7

25 ± 5.2

13.9 ± 0.4

8.4 ± 0.3

18,350 ± 132.2

5017.3 ± 275.8

121–140

1.5

2

75

380.6 ± 17.7

247.3 ± 34.4

27.3 ± 6.0

13.2 ± 1.1

8.2 ± 0.3

27383.3 ± 104

8110 ± 252.8

141–160

1.5

4

25

408.3 ± 16.5

286.3 ± 9.8

28.8 ± 5.6

11.9 ± 0.6

8.6 ± 0.2

27233.3 ± 251.6

8289.6 ± 264

161–180

1.5

6

50

393.3 ± 25.9

249 ± 33

21 ± 4.3

11.4 ± 0.9

7.9 ± 0.4

27516.6 ± 104

8420.6 ± 91.8