Wet anaerobic digestion systems are designed to process biodegradable feedstock into a digestate slurry with typically less than 15% total solids. Wet systems have a successful track record in treating low solid materials such as human sewage and food waste.
The main advantage of wet anaerobic digestion is that it allows for the optimal mixing and thus high biogas production. However, the challenges are that it requires huge amounts of water in the form of fresh or waste water, which could result in generation of large quantities of liquid digestate. Further, the need for costly mixing equipment for optimal mixing and the energy requirements needed to run the pumps and agitators hinder the adoption of technique at large scales.
However, recent technology innovations have significantly enhanced the operational efficiency of wet anaerobic digester systems. These include automated stirrer mechanisms, modular systems, which help reduce the cost of the process.
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Innovation sector01-04-2017
Source: National University of Singapore
Source: OWS
01-07-2020
Source: Yarra Valley Water
01-07-2015
Source: European Commission
Renewable Energy
Core sciences & engineering
Corporate researcher
Chemicals
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