Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2003 by Universidad Católica de Valparaíso -- Chile
Vol. 6 No. 3, Issue of December 15, 2003
 


Table 1. Equilibrium uptakes (qe) and fraction of copper removed (Xa, %) by Sargassum sp. at different temperatures and initial concentrations.

C0 (mg/mL)

298K

313K

328K

qe (mg/g)

Xa (%)

qe (mg/g)

Xa (%)

qe (mg/g)

Xa (%)

18.4

4.3 (0.1)a

89.1 (1.6)

4.3 (0.1)

89.3 (1.5)

4.1 (0.1)

87.6 (1.5)

36.9

8.3 (0.2)

90.1 (1.8)

8.3 (0.2)

90.2 (1.7)

8.3 (0.2)

86.8 (1.9)

92.2

21.3 (0.5)

92.4 (1.7)

21.3 (0.6)

92.3 (1.9)

21.4 (0.4)

91.6 (1.8)

184

40.0 ( 0.8)

87.0 (1.9)

38.0 (0.9)

82.6 (1.7)

42.5 (1.0)

92.4 (1.8)

277

53.3 (1.3)

77.0 (1.5)

53.1 (1.2)

76.6 (1.8)

57.0 (1.3)

82.2 (1.9)

369

57.9 (1.7)

62.8 (1.6)

57.6 (1.5)

62.4 (1.4)

60.8 (1.6)

65.9 (1.5)

585

70.1 (1.9)

47.9 (1.7)

75.6 (2.0)

51.7 (1.9)

80.1 (1.9)

54.8 (1.8)

780

76.2 (2.0)

39.1 (1.4)

86.0 (1.8)

44.1 (1.6)

86.6 (1.9)

44.4 (1.8)

878

77.4 (2.1)

35.3 (1.7)

86.2 (2.0)

36.6 (2.0)

87.1 (2.0)

39.7 (1.9)

a: Figures in parenthesis are standard deviations obtained for triplicate measurements of the parameter for two identical samples (n = 6).


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