AquaGreen

AquaGreen, a development company within Clean Tech, has developed new and innovative solutions for wastewater sludge treatment and for converting low-grade biomaterial resources into thermal energy and fertiliser. Our technology is based on Superheated Steam Drying and Pyrolysis, in an energy efficient process, where the calorific content is utilised for drying and converting wastewater sludge into biochar. Around 85 of the embedded thermal energy in the sludge is recoverable, and can be used for district- or process heating or cooling purposes. The biochar is rich in plant-available phosphorus, carbon and nutrients and is suitable as an agricultural fertiliser. The technology was originally developed for the fish farming industry in Norway, but the technology can be used for various sludge types and industries e.g. Sewage waste, Biogas waste, Food Waste, Oil waste, Pulp and Paper and many more.