Green Sentinel GmbH was founded by Daniel Scheiböck-Ortner on 1 August 2020.
The company deals with the processing of sewage sludge. In the process, valuable substances, such as phosphorus, are recovered and an organic-mineral complete fertiliser is produced from the
remainder or, in an additional process step, a thermally usable product. This conversion process is convincing in all respects due to its sustainability - the ecological footprint is
significantly reduced and the economic value for sewage plant operators is maximised, as expensive disposal costs are eliminated.