We develop the future. Our plants convert biogenic waste into clean biochar.


The ever-growing waste quantities all over the world cause rising CO2 emissions.

Our global team of excellent scientists and engineers has created a technology for organic waste treatment in this existential field in order to stop uncontrolled decay of biogenic waste and to convert this waste into a safe and durable product.

This can result in important economic benefits.


Our committed and skilled team developed the strategy to cope with the flow of waste and a way to convert large amounts of waste into biochar.




Over the course of his 43-year career, Klaus Serfass developed particular plants for waste water treatment and swarf treatment systems and brought them to market.

Since 2007, he had played a significant role in the research project of the DBU (German Federal Environmental Foundation) about HTC technology and successfully completed the project.

In 2011, he co-founded the German Federal Association "Hydrothermale Carbonisierung e.V." and was its chairman for 6 years. Today he has the role of vice-chairman and is still active in leading the association.

Klaus Serfass founded the company KS-VTCtech GmbH in 2017 in order to handle carbonization projects both in Germany and worldwide.

DIPL.-ING (FH) TIMO GARRELS (GRADUATE ENGINEER, UNIVERSITY OF APPLIED SCIENCES)                                                 Chief Engineer of Design and Construction

After his Environmental Engineering studies, Timo Garrels worked for a large German disposal company as a project engineer and project manager in the field of mechanical-biological treatment systems, sorting and composting plants. He was responsible for ventilation technology and exhaust air purification.

In 2011, he started a new position in an engineering office and was particularly responsible for renewable energy generated from biomass, for the process heating supply and the permit management.

OUr Partners

Itt International Technology Transfer Inc.


Itt International Technology Transfer Inc.

200-100 Park Royal

West Vancouver, B.C.

V7T 1A2, Canada

Contact person: Peter Waschke, Pres. / CEO



DMS GmbH has built up a good national and international reputation when it comes to environmental technology, mechanical and electrical engineering, measurement and control technology, but also for their excellent assemblies and services.


Scholz GmbH & Co. KG

ETB Energietechnik Bremen GmbH

Maschinenbau Scholz GmbH & Co. KG is one of the world's leading manufacturers of Quick Closing Doors for pressure vessels which enable a quick batch change in a discontinuous process. Each SCHOLZ autoclave is individually produced according to the requirements of the customer. Special requests can be jointly developed down to the smallest detail, agreed on with parties involved and implemented as required. In consideration of the different standards for pressure vessels worldwide, the company guarantees a successful operating license at the place of installation. The excellent and reproducible process accuracy of SCHOLZ autoclaves ensures a high and consistent product quality in many different industries.

Consequently, Maschinenbau Scholz GmbH & Co. KG is our number one partner for all plant engineering issues and offers many years of experience in the construction of the autoclaves that we need for our projects.

ETB Energietechnik Bremen GmbH was founded in 1981. The company specializes in developing, producing and distributing plants in energy and environmental technology.

We have a close working relationship with ETB for many years and continue our trusting corporation on smaller boiler systems and steam generators.

Provis Steuerungstechnik GmbH

Thyssenkrupp Industrial Solutions AG

PROVIS Steuerungstechnik GmbH specializes in large-scale plant automation.

We have a close working relationship with PROVIS Steuerungstechnik GmbH for many years and already completed international projects in collaboration with this partner.

Thyssenkrupp offers large-scale plants – all from one source: the planning, the procurement of materials and the construction of the plant.


We collaborate with Thyssenkrup on equipment design and processing.

Siemens AG


The Power and Gas division offers a wide range of products and solutions to utility companies, independent power producers, engineering, procurement and construction companies (EPCs) as well as to oil and gas customers. Their services allow an environmentally-compatible and resource-saving generation of power from fossil fuels and renewable sources of energy as well as a reliable transportation of oil and gas.


We equip our power generation plants with the products of the Siemens AG.

The technology of ALENGO is used to press pellet fuels from any kind of domestic and industrial waste or dried sewage sludge.

Pollutants contained in this waste such as heavy metals, toxins, etc. are embedded in the pellets via a specially developed process in such a way that they are only released again at temperatures above 4,000 °C.


The system of ALENGO and our VTC technology make a perfect combination.

InterCenter GmbH

We have a strong cooperation with InterCenter GmbH in processing flotsam washed up on coastal regions.


Through the participations of Russian shareholders in the InterCenter GmbH we have direct access to the Russian market.