ECOPAT (ECOdays' Plug-flow Aerobic Tank)
1.1 ECOPAT Characteristics1.1 ECOPAT vs CSTR (Conventional AT)
ECOPAT
CSTR
Technology Diagram
Type of Flow
Modified PFR (Vertical CSTR-series)
CSTR
Type of aeration
Normal aeration
Micro aeration
HRT
0.5~4
7~20
F/M Ratio
0.5~1.5 kgBOD/kgMLVSS?d
0.08~0.5 kgBOD/kgMLVSS?d
MLSS
8,000~25,000 mg/L
5,000~8,000 mg/L
BOD Loading Rate
8.35~16 kgBOD/??d
0.5~3.6 kgBOD/??d
BOD removal per kWh
1.1 kgBOD/kWh
0.6 kgBOD/kWh
Feature
- high oxygen transfer rate (~26%) due...