Hydrell Systems

Gallery Hydrell Systems 1
Gallery Hydrell Systems 1
August 2021
By Hydrell
Headquarters 1934 Bruson, Switzerland

Hydrell Systems - This Solution extracts energy from wastewater, allowing the use of the treated water and energy on-site or their sale.

Hydrell technology was invented in 2016. It has developed a wastewater treatment technology that allows the recovery of energy, nutrients, and clean water at a much smaller footprint and price than competing technologies. The technology will also be more robust than current comparable systems. Using the Hydrell technology, users have an incentive to treat their wastewater by saving 30%+ of their total operating costs. In its simplest form, the electrolysis of wastewater is catalysed by electroactive microorganisms oxidising organic and inorganic compounds on the anode (the positive electrode). The reaction products are car­bon dioxide (CO2) and nitrogen gas (N2). At the same time, hydrogen gas (H2) is formed on the cathode and converted to methane by methanogenic microbes.

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Key features

  • Five times smaller footprint than upflow anaerobic sludge blanket reactors
  • Can produce 50 m3/m3 (methane/wastewater) with high strength wastewater
  • Up to 90% aerial footprint reduction
  • More than 3 million m3 wastewater treated every year
  • More than 50 GWh each year
  • More than 20,000 tons CO2 saved each year


  • Five years breakeven
  • CHF 300,000 customer benefit each year from energy savings and generation

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

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