Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2006 by Universidad Católica de Valparaíso -- Chile
Vol. 9 No. 4, Issue of July 15, 2006
 

Table 1. Configuration of the single stage (3 disc) laboratory scale RBC unit.

Features

Description

Disc

Number

3 discs

Diameter

267 mm

Width

3 mm

Inter-disc spacing

15 mm

Material of manufacture

polyvinylchloride (PVC)

Rotation speed (peripheral velocity)

16 rpm

Disc submergence

40%

Drive shaft

Diameter

25 mm

Material of manufacture

stainless steel

Tank

Diameter

310 mm

Wall thickness

5 mm

Material of manufacture

fiber glass

Tank length

1) Influent chamber

2) Disc chamber

3) Settling tank

65 mm

70 mm

65 mm

Operating conditions

Working volume*

1) Influent chamber

2) Disc chamber

3) Settling tank

0.65 L

1.56 L

1.55 L

Flow rate of synthetic wastewater

2.5 L h-1

Dilution rate

1.60 h-1

Residence time in the disc stage

37 min

*Corrected for the presence of discs, but not biofilms.

 

Supported by UNESCO / MIRCEN network