Anaerobic Digester

The Anaerobic Digester is a laboratory teaching unit used to study sewage treatment and bio-gas generation, the process by which animal or food waste is converted into biogas and biofertiliser. Using an anaerobic contact process, a series of reactors separates the waste into zones (the first being the biogas zone), letting students observe digestion and gas production under controlled conditions.

Investigated process: Anaerobic digestion consists of two distinct stages, which are: (1) the hydrolysis of complex organic molecules into acetic acid, and (2) the transformation of acetic acid into methane gas and carbon dioxide.

Application areas:

• Study of Sewage/Biogas Production
• Environmental, biotechnology and chemical-engineering teaching labs
• Showing the concepts of anaerobic digestion and bio-energy production

Technical Specifications:

• Parameter
• Value
• Reactors
• Two identical units
• Nominal capacity
• 5 litres (packed volume 4 litres)
• Reactor dimensions
• 150 mm dia × 250 mm high
• Bio-balls packing
• 25 mm diameter
• Heating jacket
• 200 W with PID control
• Temperature range
• Ambient to 55 °C (thermal cut-out 85 °C)
• Feed pumps
• Two peristaltic pumps, variable speed to 4 rpm
• Tube diameters
• 1.6, 3.2, 4.0 mm
• Flow rates
• 0.2 to 7 l/day
• Gas collection
• Two vessels, 0–5 litre, with linear scale
• Electrical supply
• 220–240 V / 1 ph / 50 Hz or 120 V / 1 ph / 60 Hz

FAQ:

Q. What Does the Anaerobic Digestion Unit Show?

Sewage treatment and biogas production through a two-stage anaerobic digestion process. 

Q. How High Can the Temperature Reach? 

Ambient to 55°C, PID-controlled, with an 85°C thermal cut-out.

Q. Do you export this unit? 

Yes, LabExports is a manufacturer and exporter supplying institutions worldwide.

 

Why LabExports: manufacturer and exporter of technical and environmental lab equipment, delivering to universities and institutes worldwide. Contact us for a quote.