Anaerobic Digester
- A bench top Anaerobic digestic for waste water treatment studies
- Equipped with two 5 litre packed bed, upward flow reactors
- Each reactor has gas sampling & collection facilities
- Reactors may be operated in series or parallel flow arrangement, using variable speed peristaltic pumps
- Feed flow rate to each reactor can be
accurately & independantly controlled to any temperature between
ambient and 55°C, using 200W heating jackets
- Thermostatic cut-out set to 85°C
- An instruction manual describing test
and practical work capabilities, including details of a proven test
substrate formulation is included
Description:
The anaerobic digester comprises two 5
litre upward-flow packed bed reactors with feed rate and temperature
control facilities to allow steady, continuous operation at up to seven
litres per day over periods of many days.
The reactors may be operated in series
or parallel. A buffer vessel between the reactors permits discharge of
excess flow from the first reactor when the second reactor is operated
in series but at a lower flow rate. The flow rates to the vessels are
set and controlled by calibrated peristaltic pumps.
The temperature of each reactor is
controlled by an electric heating mat wrapped around the external wall.
The temperture distribution within each reactor is maintained to ±0.5°C.
Reactor temperatures may be separately set at any desired value in the
range ambient to 55°C.
Technical Details:
Reactors:
- Two, indentical -nominal capacity:
- 5 litres packed volume:
- 4 litres 150mm dia x 250mm high
Reactor packing:
Temperature control:
- For each reactor: 200W heating jacket with PID control from a temperature sensor positioned inside the reactor.
- Set point within range ambient to 55°C, the jacket is thermostatically protected by a cut-out set at 85°C.
Feed pumps:
- Two, identical peristaltic pumps – variable speed using 10 turn
potentiometer to 4rpm supplied with three tube diameters:1.6, 3.2 and
4.0mm, flow rates from 0.2 to 5.8 l/day
Gas collection Vessels:
- Two, identical – linear scale, 0-5 litre capacity
Anaerobic Digester ALTEC Laboratory Equipments and ALTEC Laboratory Instruments Tenders.