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Your Comprehensive Source for Biogas Technology
CH-Four Biogas understands that a biogas project is more than just an
anaerobic digester – it’s an integrated biotechnology system. What sets
us apart is our proven track record of combining the best individual
components and merging them into a successful project.

Anaerobic Digestion Technology

CH-Four Biogas employs completely-mixed, mesophilic wet anaerobic
digestion as our core technology. This design has proven to be extremely
reliable and versatile while affording maximum biogas yields in a cost-
effective manner. In order to meet the needs of unique client
requirements, we also have a track-record of developing alternative
anaerobic digestion system designs.

Feedstock Management Technology

In the world of biogas, system feedstocks are everything. In order to
facilitate the use of a wide variety of organic materials, we have
developed comprehensive feedstock pre-processing systems capable of
accommodating various organic residue streams. Feedstock flexibility =
Project versatility

To enable the safe and reliable use of feedstock mixes, CH-Four Biogas
developed highly advanced anaerobic digestion computer modeling
software. This software enables us to accurately predict how any
potential organic feedstock will react in an anaerobic digester. This
technology allows us to develop the most reliable and highest-yielding
feedstock recipes possible.

Effluent Management Technology

In order to maximize the value of a biogas project, effective management
of post-digester material (digestate) is critical. CH-Four Biogas has
developed a variety of effluent management systems to meet the needs
of our clients. Whether recovering livestock bedding, isolating and
concentrating nutrients, or purifying effluent for direct discharge, CH-Four
Biogas has the experience to meet any project requirements.

Feedstocks and Digestion Process Modeling

Over the course of our more than seven years of doing business in North
America, we did every now and again run into ‘strange’ substrates for
which no literature is available. We dealt with those by adapting the
ADM1 anaerobic digestion model (IWA), originally developed for
municipal sludge for industrial and agricultural biogas plant.

Over time, we have evolved this program into a valuable simulation tool,
allowing us to not only improve performance of existing biogas plants,
but also biochemically simulate biogas system performance while the
project is still on the drawing board.

Today, we are using this simulation for research of new anaerobic
digester designs, feasibility studies and optimization of existing systems.
Our Technology