Both units can be used separately or in combination. This allows both a single stage and a dual stage operation mode. In the dual stage operation a pump first transports the raw water into a stirred tank. In a secondary clarifier the biomass discharged from the stirred tank is separated from the water. The separated biomass is pumped back into the stirring tank. Flow through the UASB reactor is from the bottom to the top. In this tank the acidification of the organic substances dissolved in the raw water takes place. Here, anaerobic microorganisms convert the long-chain organic substances into short-chain organic substances. At the top of the UASB reactor there is a separation system. This separates the generated gas from the treated water. It also ensures that the biomass remains in the reactor. The gas can be discharged externally or collected. The treated water exits at the top end of the reactor and is collected in a tank. From the secondary clarifier the raw water pretreated in this manner reaches a UASB reactor (UASB: Up flow Anaerobic Sludge Blanket). Here the final step of the anaerobic degradation takes place. The previously formed short-chain substances are converted by special microorganisms into biogas (methane and carbon dioxide).

The pH value in the stirred tank is measured. In addition, the pH value in the UASB reactor can be controlled. A software and webcam are available for data acquisition and visual inspection. Anaerobic biomass and analysis technology are required to perform the experiments. Recommended parameters are: COD (chemical oxygen demand), nitrogen and phosphor. To adjust the flow velocity in the UASB reactor a of the treated water can be recirculated. The temperatures in the stirred tank and the UASB reactor can be controlled.

Specifications:

Single stage or dual stage operation mode

Anaerobic degradation of organic substances

Stirred tank with secondary clarifier

Separate supply unit with tanks for raw water and treated water

Visual inspection with webcam

UASB reactor with separation system

Temperatures in the stirred tank and the UASB reactor can be controlled

Control of the pH value in the UASB reactor

Software for data acquisition via USB under Windows 8.1, 10 

Technical data:

Tanks

UASB reactor: 50L

Tank for raw water: 180L

Tank for treated water: 180L

Stirred tank: 30L

Secondary clarifier: 30L

Flow rates (max.)

Circulation pump: 100L/h

Metering pumps: 2x 2,1L/h

Raw water pump: 10L/h

Return sludge pump: 10L/h

Measuring ranges

pH value: 0…14

Temperature: 0…100°C

400V, 50Hz, 3 phases

400V, 60Hz, 3 phases

230V, 60Hz, 3 phases.

Dimensions and Weight:

LxWxH: 1550x790x1150mm (supply unit)

LxWxH: 2830x790x1900mm (trainer)

Total weight: 520kg.