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Anaerobic Digestion System Enhancement

Convert biosolids into methane and valuable byproducts

Designed to recycle biosolids into methane and valuable byproducts, Veolia’s advanced anaerobic digestion technologies use bacteria in the absence of oxygen to break down matter to create biogas. The biogas can be combusted or oxidized and used for heating or with a CHP engine to produce electricity and heat; it can also be compressed and used as fuel for vehicles with the cake produced, used as a fertilizer.

Sludge Digestion Enhancement

Targeted to municipal wastewater sludge, Veolia’s biosolids solutions include advanced anaerobic digestion, digester upgrading, co-digestion and Class A Biosolids.

Biological Hydrolysis with Monsal 42, 55

Advanced Anaerobic Digestion is designed with a retention time of 18 to 22 days to improve the conversion from sludge to energy. Digester upgrading maximizes the biogas yield from existing sludge streams shifting the plant balance towards energy neutrality.

Class A Biosolids with 2PAD System

Whether you are retrofitting an existing plant or building a new one, the 2PAD (Two Phase Anaerobic Digestion) System is ready to take your sludge to a new class - Class A Biosolids only needing 12 days retention time.
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2PAD anaerobic digestion system benefits

  • Produces class A biosolids, which are bio-safe and can be land-applied without restrictions.
  • Separating the acid- and methane-forming phases makes the digestion process more efficient and more effective.
  • Aeration is not required, so energy costs are low.
  • Total hydraulic retention time is greatly reduced, which means smaller digesters can be used and associated costs are lower.
  • Foaming is virtually eliminated because nocardia bacteria, the typical cause of digester foaming, is destroyed in the thermophilic stage.

Featured Video

Using a drone video, we've captured how Anglian Water's Great Billing Water Recycling Center captures energy and valuable products using Veolia’s advanced anaerobic digestion and gas engine technologies.

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