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

New WTT office

WTT is moving!

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We are really proud and happy to announce this big step. As a result of our constant efforts supplying high-tech waste treatment solutions all around the world, combined with our core focus to exceed customer expectations, the market response has…

Lubartow dry AD facility

LUBARTOW project hand-over

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After a cohesive, co-management relationship with Instal Warsaw, the Lubartow project has been successfully handed to the investor.   In this project WTT was responsible for the engineering, realization and commissioning of a Dry Anaerobic Digestion installation treating the fine,…


KEMBLA GRANGE Project update

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The SOILCO Kembla Grange project in Australia has reached mechanical completion. An important milestone in the overall project execution realized in accordance to the original time schedule. Air and water treatment upgrades have been installed in SOILCO’s Organics Recycling Facility…

Kompostwerke Rhein-Sieg

Project Announcement: Swisttal-Miel – Germany – New tunnel composting facility

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We are proud to announce that WTT is awarded with the order for building a new turn-key bio-waste composting facility for Kompostwerke Rhein-Sieg (KRS) in Germany. KRS is part of the RSAG-group and operates three composting sites. The new facility…


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…