IC anaerobic reactor is high-efficient multi-stage internal recycle reactor with advantages such as small floor area, high organic loading, stable performance, and simple operation. IC anaerobic reactor is suitable for organic high-concentration wastewater such as corn starch wastewater, citric acid wastewater, beer wastewater, potato processing wastewater, and alcohol wastewater.

According to function, the reactor is divided into five sections: mixing zone, the first anaerobic zone, the second anaerobic zone, settling zone, and gas/liquid separation zone.