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Table 2 Summary performances of repeated-batch cultivation by C. utilis UNA1 and C. utilis IFO1086

From: Treatment of, and Candida utilis biomass production from shochu wastewater; the effects of maintaining a low pH on DOC removal and feeding cultivation on biomass production

  

Sweet-potato shochu wastewater

Barley shochu wastewatera

  

UNA1

IFO1086

UNA1

IFO1086

Periods

Cycles

30

12

50

12

DOC

Influent (mg/l)

15877 ± 740

15621 ± 1201

19731 ± 311

18444 ± 557

Effluent (mg/l)

7691 ± 545

8179 ± 927

8075 ± 314

8217 ± 495

Removal ratio (%)

51.6 ± 3.4

47.6 ± 5.9

59.1 ± 1.6

55.5 ± 2.7

DTN

Influent (mg/l)

1013.3 ± 46.7

985.2 ± 71.5

2736.5 ± 67.0

2674.6 ± 59.7

Effluent (mg/L)

477.9 ± 18.8

489.6 ± 38.3

1748.4 ± 44.4

1792.9 ± 87.9

Removal ratio (%)

52.8 ± 1.9

50.3 ± 3.9

36.1 ± 1.6

33.0 ± 3.3

DTP

Influent (mg/l)

289.2 ± 13.9

264.7 ± 17.5

383.1 ± 7.4

378.7 ± 6.3

Effluent (mg/l)

116.3 ± 10.4

131.5 ± 16.4

195.4 ± 10.9

228.4 ± 20.6

Removal ratio (%)

59.8 ± 3.6

50.3 ± 6.2

49.0 ± 2.8

39.7 ± 5.4

pH

Influent (−)

4.08 ± 0.01

3.98 ± 0.01

4.07 ± 0.03

4.18 ± 0.00

Effluent (−)

7.28 ± 0.27

6.17 ± 0.65

8.00 ± 0.15

8.49 ± 0.07

OD660

Effluent (−)

32.7 ± 2.1

31.4 ± 3.4

34.9 ± 1.2

36.2 ±1.5

  1. aThe results of barely shochu wastewater (diluted twice) previously reported (12) were shown for reference.
  2. Data are means ± standard deviation of samples of each cycle.