Country: Switzerland

Environmental Innovation Awards 2022

Year of foundation: 2015

Theme: Cleantech


TreaTech brings to market an innovative technology for the valorisation of waste. It transforms waste into local, contaminant-free methane-rich gas and clean water while recovering valuable minerals creating a positive impact on circular economy, energy independence and climate change mitigation.

TreaTech is bringing to market the catalytic hydrothermal gasification (cHTG), an innovative clean technology for the treatment of solid and liquid waste that will disrupt the waste treatment industry. Moreover, the technology represents a tangible option for the production of high quality methane from waste contributing to climate change mitigation and paving the path of energy transition and independence.

If our solution would treat the chemical waste as well as liquid biomass produced each year in Switzerland, 13 TWh of synthetic gas could be generated, which is equivalent to 83% of Switzerland’s annual imports from Russia.

TreaTech’s technology is a true contributor to the circular economy as it generates 3 to 15 times (depending on the waste treated) more energy than it consumes (net positive generator of clean energy), recovers 90% of treated water, and recovers > 90% of finite nutrients (e.g. phosphorus, nitrogen).

Moreover, cHTG transforms 99% of the organic carbon in the waste into pollutants-free and methane-rich renewable gas, it is installed at the customer site avoiding transport of the waste, destroys all pathogens and micropollutants and allows recovery of valuable nutrients and metals.

Other common processes for disposing municipal and industrial wastes are incineration and/or oxidation before landfilling. Those processes don’t fully valorise energy on the waste and are energetically intensive compared to our process. Specifically, incineration results in the release of large amounts of CO2, and wastes large volumes of water via non-recovered steam further exasperating clean water scarcity. In addition, the energy is generated in the form of heat which cannot be stored when produced off-season and neither transported over long distances.