Our innovative biogas scrubber

Once the bio-waste has been digested in the digester, biogas begins to be produced by anaerobic bacteria. The resulting gas must be treated before it can be used to generate energy. However, this purification process can be complex and quite costly for small-scale units such as the BioCapsule®.  

At Arkeale, we have designed an innovative, ‘low-tech’ biogas purifier to make anaerobic digestion sustainable and accessible.

The challenge of biogas purification  

Biogas produced by anaerobic digestion contains around 40 per centbiogenicCO₂. This high content limits direct energy recovery and requires extensive treatment before the gas can be utilised. 

ExistingCO₂ separation solutionsare costly, complex and too bulky to be cost-effective for small-scale anaerobic digestion units, such as the BioCapsule®. 

Arkeale’s innovation: a low-tech scrubber 

Our R&D teams have been working to find a solution to thisproblem, enabling us to reduce investment costs and minimise the size of the separator so that it can be integrated intoour unit’s design, which prioritisescompactnessand simplicity. 

The BioCapsule® now incorporates acompact, cyclic water-wash scrubber. 

Why is this a revolution for the sector? 

1. A low-tech design:We prioritise robust and simple technology, reducing the risk of breakdowns and making maintenance easier.

2. Immediate compatibility:The purified gas can be used directly with your existing equipment without costly modifications. 

3. Genuine efficiency:Thanks to our cyclic washing system, water and electricity consumption is reduced to an absolute minimum. 

4. A manageable investment:With an affordable price,this purifier helps maintain the economic viability of local projects without compromising performance.

5.Conversion to BioNGV:You can convert your bio-waste into fuel for your vehicle fleets.  

This innovative treatment unit not only makes it easy to convert the gas into energy after separation, but also enablesthe recoveryofbiogenicCO₂for secondary uses,such as industrial applications or soil fertilisation.