Excellence in waste treatment

Waste Treatment Technologies (WTT) is a renowned and experienced supplier of high-tech waste treatment solutions. Founded in 1996, we’ve been designing, constructing, building and maintaining facilities all over the world.

With offices in the Netherlands, Germany and Spain, we are able to offer our clients – a significant group of well-known international waste management companies – a comprehensive range of services using leading technologies and products.

Successfully combining the latest mechanical and biological techniques (MBT) in turnkey projects gives us a unique position in the market. Our facilities vary from sorting stations for domestic and industrial waste to complete installations for recovering reusable materials in combination with the use of biological processes.

Latest news


Project Announcement: Orvieto – Italy – Revamping of aerobic treatment section of MBT facility

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WTT is proud to announce that it has been awarded by SAO S.r.l. for the design, supply and other services linked to the revamping of the aerobic treatment section at the MBT plant, located in Orvieto (Terni) – Italy. The new supplies mainly…



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  Installation works at the construction site are on schedule and the main part of the equipment for anaerobic digestion, composting and odor abatement is in place. Main equipment was pre-installed on skids and tested in a factory in Holland…

Production of Giugliano process technology

Project Announcement: Giugliano – Italy – Integrated dry anaerobic digestion and composting facility

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WTT is proud to announce that it has been awarded by Castaldo S.p.A. for the design, supply, installation and commissioning works of an integrated Dry Anaerobic and Composting plant currently being built in Giugliano, Campania (Naples) – Italy. The facility will…

AD Skids in correct position

Good progress at the Surrey Biofuel facility

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WTT is the turn key technology provider for the biggest waste treatment facility for residential and commercial kitchen and garden waste in Northern America. The facility will be able to treat 115.000 tons of waste per year.   WTT is…

WTT - Plexus

Plexus Recycling Technologies signs contract with WTT

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Plexus Recycling Technologies and WTT have agreed to collaborate on Waste treatment systems in North America. WTT is proud to take part in the already growing line of Plexus companies; which includes Andritz MeWa, Komptech, Matthiessen & ZenRobotics. Marcel Vallen CEO…


Lubartow construction progressing rapidly

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  The construction of the dry anaerobic digestion facility in Lubartow, Poland, has arrived at a key-point, the mounting of the skids. Skids are pre-fabricated frames on which piping, instrumentation, valves, etc. are constructed.   Skids enable WTT to coordinate…