Case study A.E. Staley, Tennessee, USA

Wastewater traetment plant for corn refinery. Pre-treatment of wastewater ahead of activated sludge treatment.

  • Operational since: 2000.

Design data

Parameter Value
BOD 10 886 kg/d
COD 16 329 kg/d
TSS 635 mg/l
Design flow 6 549 m³/d
Maximum flow 11 356 m³/d
Design temperature range 32-40°C

Effluent requirements

The Moving bed™ biofilm process is designed to reduce the organic load to the existing treatment system.

Results

Parameters Influent (mg/l) Effluent (mg/l) Reduction (%)
COD 2 140 241.4 89
BOD7 1 196 61.0 95

The Moving Bed™biofilm system has shown a very consistent removal of total organic carbon (TOC) of>60%.
The system handles large swings in organic loads from day to day, and requires minimal operator attention.