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We are a global leader in energy from waste (EfW), acting as an engineering, procurement and construction (EPC) contractor delivering complete turnkey plants and system solutions for energy recovery from waste. Our solutions are based on efficient and environmentally sound technology, are thoroughly tested, can be flexibly adapted to user requirements, and cover the entire plant life cycle.

The company’s customers range from experienced waste management companies to up-and-coming partners in new markets worldwide. HZI’s innovative and reliable waste and flue gas treatment solutions have been part of some 500 reference projects delivered since 1933.


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With our in-house technology we contribute to sustainable waste treatment. We build complex EPC plants worldwide and are responsible for a first-class implementation. We offer state of the art thermal & biological treatments. Our specialists give your plant a longer lifetime and increase the plant efficiency.