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Anaerobic Digestion

The following services are offered to industry;

  • Biochemical Methane Potential (BMP) assays
  • Feedstock analysis and pre-treatment
  • Reactor and pilot scale trials
  • Process development, design and modelling
  • Process monitoring and optimisation
  • Operational analysis
  • Expert advice and training

The Anaerobic Digestion (AD) process is a natural biological process where microorganisms breakdown biodegradable organic matter in the absence of oxygen. The process produces biogas that contains 60-70% methane gas, 30-40% carbon dioxide with traces of hydrogen sulphide and ammonia. The biogas produced can be utilised as a source of energy when the methane component is burnt in a Combined Heat & Power (CHP) plant, directly injected into the gas grid or compressed for liquid transport fuel.

Organic polymers such as carbohydrates, proteins and fats are degraded by the AD process in four phases: hydrolysis, acidogenesis, acetogenesis and methanogenesis. The process is enclosed to ensure anaerobic conditions, increase biogas capture and reduce any potential odours that are common with current waste management technologies such as landfilling or In Vessel Composting (IVC).‌

 

The Science of Anaerobic Digestion

AD Digester

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