COMPARISION AMONG ASP,
MBBR, SBR AND MBR
|
Technology |
ASP |
MBBR |
SBR |
MBR |
|
Aeration
Unit |
Needs
a Big Aeration Tank with surface aerators or diffused aeration. |
Floating
media is used providing a surface for microbial growth |
Operates
in batch where waste water is added to the reactor, treated and discharges. |
Normal
biological treatment like MBBR |
|
Settling
Unit |
Uses
a Common circular Settling Tank |
A
tube settler is used for high sludge removal rate. |
NIL |
Membrane
filtration process in place of Settler. |
|
Efficiency |
Average
Efficiency |
High
Treatment efficiency. Robust against fluctuation flow
and load |
Flexibility
in Treatment. High Nutrient removal |
Superior
effluent quality due to membrane barrier. |
|
Area |
Largest
Area |
Most
compact system |
Requires
less area than ASP |
50%
less area then SBR |
|
Uses |
Used
in Municipal waste water treatment
plant |
Used
in Decentralized waste water treatment plant and Industries. |
Suitable
for smaller STP. It has some constraints in Municipal waste water treatment plant |
Used
in Decentralized waste water treatment plant and Industries, especially when
plant is to be designed for zero discharge. |
|
Cost |
Medium
Cost EASY
TO MAINTAIN |
Lowest
capital and maintenance cost, EASY TO MAINTAIN |
High
maintenance cost |
High
Energy Load, Maintenance cost 20% lower than SBR |