CE 702 demonstrates anaerobic biological water treatment. The trainer basically consists of two units:

• – agitation tank with secondary clarifier
• – UASB reactor

Both units can be used separately or in combination. This allows for both a single stage mode of operation and a dual stage mode of operation. In dual-stage operation, a pump first transports the raw water into an agitated tank. In this tank the acidification of the organic substances dissolved in the raw water takes place. Here, anaerobic microorganisms convert long-chain organic substances into short-chain organic substances. In a secondary clarifier, the biomass discharged from the stirred tank is separated from the water. The separated biomass is pumped back to the stirring tank.

Code: CE 702