In January 2018, as part of the project entitled: "Integration and development of water and sewage management in Józefów - construction of a sewage treatment plant with warranty service", Proffico signed a contract for the implementation of a complete municipal sewage sludge dewatering installation. The investor in this task is the City of Józefów, the user is Hydrosfera Józefów Sp. z o. o., the general contractor is Instal Warszawa SA and Proffico acts as a subcontractor responsible for the delivery, assembly and start-up of the complete sewage sludge dewatering installation. Thanks to this installation in the field of sewage sludge dewatering technology, the city of Józefów has joined the group of cities with the most efficient technical solutions currently available on the market. The most important features of the dewatering installation based on Bucher presses are a high level of dewatering, at low operating costs. These features and the very long service life of the piston presses determined their use in Józefów, as in other European cities, in particular in the metropolis of London.