Table 3. Characteristics of supernatant in each experiment.

Experiment
I
II
III

Supernatant

Initial*

Final

Initial*

Final

Initial*

Final

pH

7.3

7.3

7.5

7.0

7.6

7.2

TSS (mg L-1)

1,370

--

2,925

30

2,030

880

FSS (mg L-1)

410

--

1,215

0

830

270

VSS (mg L-1)

960

--

1,710

30

1,200

610

COD (mg L-1)

9,720

434

1,203

180

4,259

746

*supernatant formed at the 5th day


Supported by UNESCO / MIRCEN network