Exper. A

TAN

Nitrite-N

Nitrate-N

orthophosphate-P

Trickling filters

 Time

av

 ±

 av

±

av

±

av

±

 6:45:00

 0.043

0.005

  0.028

 0.000

 2.338

 0.098

 0.400

 0.002

11:45:00

 0.055

 0.001

 0.030

 0.001

 1.936

0.043

0.411

 0.002

16:45:00

 0.078

 0.010

 0.036

 0.000

 2.010

 0.212

 0.422

 0.016

30:45:00

 0.040

0.004

 0.041

 0.001

 2.664

 0.128

 0.470

 0.004

35:45:00

0.052

 0.003

 0.036

 0.002

 3.267

 0.125

 0.405

 0.001

40:45:00

0.075

 0.018

 0.040

0.000

 2.724

 0.043

 0.437

 0.003

54:45:00

0.042

0.004

 0.042

 0.001

 2.992

 0.227

 0.482

 0.004

59:45:00

 0.057

 0.004

 0.040

0.000

3.114

0.564

 0.439

0.001

64:45:00

0.052

0.002

0.046

0.003

2.709

0.088

0.455

0.014

 average

 0.055

  0.006

 0.038

 0.001

 2.639

0.170

0.436

0.005

 stdev

0.014

 0.005

 0.006

 0.001

 0.466

 0.161

0.029

 0.006

Sump

6:45:00

0.179

 0.012

 0.102

0.000

 3.171

 0.043

 0.469

0.002

11:45:00

 0.162

 0.004

0.088

 0.001

 2.536

 0.212

 0.392

 0.016

16:45:00

0.175

 0.019

 0.085

 0.003

 2.310

0.057

 0.423

 0.006

30:45:00

 0.165

 0.012

 0.117

 0.001

 3.177

0.125

0.468

0.001

35:45:00

 0.127

 0.003

 0.101

 0.002

 2.794

 0.043

 0.401

 0.003

40:45:00

 0.172

 0.005

 0.106

 0.002

 3.287

 0.142

 0.456

 0.002

54:45:00

 0.148

 0.008

 0.111

 0.000

 3.042

 0.564

 0.461

 0.001

59:45:00

 0.151

 0.011

 0.106

 0.002

 2.758

 0.088

 0.434

 0.014

64:45:00

 0.166

 0.005

 0.110

 0.003

 2.814

 0.282

 0.439

 0.006

 average

 0.161

  0.009

 0.103

 0.001

 2.877

0.173

0.438

0.006

 stdev

0.016

 0.005

 0.010

 0.001

 0.323

 0.167

0.028

 0.006

Trickling  filters

Exper. B

TAN

Nitrite-N

Nitrate-N

orthophosphate-P

 Time

av

 ±

 av

 ±

 av

 ±

 av

 ±

 6:45:00

 0.040

 0.003

 0.040

 0.000

 2.894

 0.289

 0.425

 0.003

11:45:00

 0.050

 0.008

 0.035

 0.001

 2.924

 0.156

 0.391

 0.008

16:45:00

 0.036

 0.002

 0.039

 0.001

 1.828

 0.224

 0.341

 0.003

30:45:00

 0.039

 0.005

 0.039

 0.001

 2.950

 0.086

0.427

0.006

35:45:00

 0.039

 0.007

 0.031

 0.000

 2.734

 0.437

 0.366

 0.002

40:45:00

 0.038

 0.008

 0.035

 0.000

 2.475

 0.461

 0.365

 0.006

54:45:00

 0.026

 0.007

 0.030

 0.001

 2.614

 0.191

 0.390

 0.009

59:45:00

 0.024

 0.002

 0.027

 0.001

 2.902

 0.133

 0.351

 0.007

64:45:00

 0.024

 0.006

 0.030

 0.001

 2.190

 0.413

 0.346

 0.012

 average

 0.035

  0.005

 0.034

 0.001

 2.612

0.266

0.378

0.006

 stdev

0.009

 0.002

 0.005

 0.000

 0.388

 0.141

0.032

 0.003

Sump

 6:45:00

 0.143

 0.022

 0.105

 0.001

 3.638

 0.197

 0.430

 0.020

11:45:00

 0.099

 0.007

 0.085

 0.002

 3.004

 0.244

 0.388

 0.002

16:45:00

 0.100

 0.009

 0.091

 0.001

 2.224

 0.127

 0.337

 0.003

30:45:00

 0.137

 0.019

 0.098

 0.001

 3.919

 0.229

 0.419

 0.003

35:45:00

 0.118

 0.009

 0.080

 0.001

 3.019

 0.263

 0.364

 0.004

Table 5: Dissolved inorganic nutrients recorded in Experiment A (above) and B (below). All data expressed as mg L-1. Average values are the result of 4 replicates, ± one standard deviation.
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