Aerobic Treatment Systems
Aerobic treatment processes convert the biodegradable organic content of wastewater streams
5 or COD) into Carbon Dioxide (CO2) and new cell mass (sludge). Aerobic systems are net
energy users and produce approximately ten (10) times more waste sludge than anaerobic
systems for the same application.  However, aerobic systems can treat wastewater streams to
lower organic and Total Suspended solids (TSS) concentrations and are typically required for final
discharge (SPDES or NPDES) permits.

EMG typically recommends the Anaerobic Fluidized Bed Digester (AFBD) system to its clients,
due to superior anaerobic technology efficiency and reliability, lower operating cost, and
significantly lower sludge production.  However, we provide turnkey services for aerobic
processes as a complementary polishing treatment step.  Aerobic processes can facilitate
compliance with strict final discharge (SPDES or NPDES) permit limits for BOD5, TSS, Nitrogen
(N) and Phosphorous (P).

Aerobic, anoxic, and other polishing systems that EMG offers include:

  • Conventional Activated Sludge (AS) Systems
  • Extended Aeration Systems
  • Sequencing Batch Reactor (SBR) Systems
  • Aerobic Fluidized Bed Reactor (FBR) Systems
  • Nitrification and De-nitrification (N-Removal and Reclamation) Systems
  • Phosphorous Removal (P-Removal and Reclamation) Systems
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