| Features |
 |
BMS
Biological Process Technology |
|
Conventional
Activated Sludge Process |
|
|
Design and Installation |
|
 |
Simple design and easy
installation
|
|
|
|
Automated and mechanised plant |
|
Relatively higher building cost
|
|
|
|
Sludge Production |
|
|
Mimics a perfect ecosystem |
|
Produces minimal sludge and
insignificant odour
|
|
|
|
Requires disposal of excess sludge |
|
Requires extra process to remove odour
|
|
Raises operational cost
|
|
|
|
Energy Requirement |
|
|
Specially designed air-spargers
provide a steady flow of bubbles which result in an airlift circulation throughout the tank |
|
Requires less energy
|
|
|
|
Air must be supplied to different sections of the aeration tank |
|
Requires higher energy
|
|
|
Lower Operating & Maintenance
Costs |
|
|
Simplicity in design |
|
No need for additional secondary sludge disposal facilites
|
|
|
|
Additional cost of treating surplus sludge |
|
Requires regular maintenance
|
|
|
