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Small Sewage Treatment System

The Answer To Your Sewage Problems
db ssts2Our DBW-AERO system adopts conventional activated sludge process using a diaphragm pump which includes air into the aeration tank to reduce the BOD5 and suspended solid concentration. This process will enhance the growth of micro organisms which digest and convert the organic and bio-chemical substance in the sewage into simple and harmless residues.

db sstsAdvantages of DBW's AERO systems
  • EXTRA strength with our unique 16-sided design
  • Improved effluent quality to fulfill Standard A requirement.
  • Lightweight, easy to handle and install
  • Minimum space required with site conditions flexibility.

DATA AERO-50 AERO-70 AERO-90 AERO-100 AERO-140
Process    Conventional Activated Sludge Process 
Type of Waste Domestic Waste
BOD and SS Removal EQA Standard 'A'
Desludging Once a year
Population Equivalent (PE) 50 70 90 100 140
Number of Tank 2 2 2 4 4
Separation Tank Volume in m³ 6.58 9.05 10.86 13.16 18.1
Aeration Tank Volume in m³ 4.36 6.02 7.44 8.72 12.04
Clarifier Tank Volume in m³ 2.23 3.19 3.26 4.46 6.52
Height in metre (B) 2.15 2.40 2.75 2.15 2.4
Diameter in metre (A) 2.10 2.40 2.40 2.1 2.4
Inlet / Outlet pipe size in mm ø 100 150 150 150 150
Inlet pipe Level in metre (C) 0.20 0.30 0.30 0.20 0.30
Outlet pipe Level in metre (D) 0.30 0.40 0.40 0.30 0.40
Air Pump Model (or equivalent)(E) HB-80
/80 Watt
HB-100
/120 Watt
HB-120
/124 Watt
HB-80
/80 Watt
(2 units)
HB-100
/120 Watt
(2 units)
Area Required for tanks only 16.5 m²:
(3.0m x 5.5m)
17.7 m²:
(3.0m x 5.9m)
18.0 m²:
(3.0m x 6.0m)
33.0 m²:
(6.0m x 5.5m)
35.4 m²:
(6.0m x 5.9m)