Extended Aeration Process
VB Environ India Pvt Ltd - Extended Aeration System Provides Simplified Pre Fabricated Plants
In comparison to traditional activated sludge, longer mixing time with aged sludge offers a stable biological ecosystem better adapted for effectively treating waste load fluctuations from variable occupancy situations.
Supplemental feeding is sometimes used to sustain sludge microbial populations during periods of low occupancy. Sludge may be periodically removed as sludge volume approaches storage capacity. Extended Aeration Plants are effectively proven in providing excellent Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS) removal efficiency.
Advantages of extended aeration system:
- Plants are easy to operate.
- Extended aeration processes are often better at handling organic loading and flow fluctuations.
- greater detention time for the nutrients to be assimilated by microbes.
- Systems are odour free, can be installed in most locations, have a relatively small footprint
- Relatively low sludge yield due to long sludge ages
- Slower residence time of between 20 to 40 days
- Can be built in Rectangular or Circular shape.
VB Environ India Pvt Ltds’ extended-aeration system includes capabilities for aeration & mixing, settling, return of activated sludge and solids removal, this last in the form of a biomass known as waste-activated sludge. An activated sludge process re-circulates part of the biomass as an integral part of the process Intended to minimize design costs for waste disposal appropriate for
