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 Anaerobic Digestion Technology (ADT) is a waste treatment method that utilizes the bacteria inherent in the waste to decompose organic waste. The process occurs in an enclosed environment absent of gaseous oxygen. The breakdown of organic waste by bacteria causes the release of biogas, a mixture of methane and carbon dioxide, at amounts that vary according to the content of the waste. The methane can then be combusted in gas engines to produce electricity, which provides power for internal plant consumption and can be fed to the state grid.
Designed as an industrial operation, a gas-tight reactor simulates an anaerobic environment to accelerate the growth of micro-organisms under man-made conditions to achieve the efficiency necessary of an industrial scale.
At New Environmental Energy Holdings, we offer single stage continuous process ADT in a varied set of operating parameters such as wet and dry digestion, and at different temperature as found in the thermophilic and mesophilic processes. These modes can be effectively combined to optimize the performance.
Wet Anaerobic Digestion
We offer wet anaerobic digestion technology in LARAN (r) Loop Fermenters from STRABAG of Germany.
- Patented, 30 years industrially proven method
- Proven technology - reference systems with over 10 years of uninterrupted fermenter operation
- Large fermenter volume up to 12,000 m3 possible
- Suitable for fermentation of food waste, manure or for co-digestion
- Guaranteed circulation by loop flow without moving agitators - no floating and sinking layers
- Desulfurization of biogas by suppression of H2S formation and by H2S degradation
Dry Anaerobic Digestion
We offer two types of dry anaerobic digestion technology:
- Dry anaerobic digestion technology in LARAN (r) Plug Flow Fermenters from STRABAG of Germany:
- Patented and industry-proven, continuous process
- Horizontal fermenter with low overall height and transverse agitators
- Used for fermentation of structure rich substrates such as bio waste or organic fraction from MSW
- Standardized ranges up to 2,600 m3 digester volume
- Robust agitators prevent floating and sinking layers
- Patented, low-wear vacuum discharge system
- Very high specific organic load of up to 14 kg VS / m3 d
- High flexibility in dry substance content between 15% to 45% possible
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