Our plants were designed to help operating landfill sites, agriculture, forestry and treatment plants in a way that they can refine and reuse the surplus material in a profitable and eco-friendly manner.

We offer our plants in the following standard sizes:

Other sizes are available upon request. No matter the dimensions – we develop and construct according to your individual needs.

10 m³/d


1,000 t/a

50 m³/d


5,000 t/a

100 m³/d


10,000 t/a

250 m³/d


25,000 t/a

500 m³/d


50,000 t/a

1,000 m³/d


100,000 t/a

2,000 m³/d


200,000 t/a

3,000 m³/d


300,000 t/a

Would you like to know more about our plants or

do you wish to send an inquiry on one or several plants?


Would you like to know more about the process which enables the conversion of your (waste) biomass into biochar? You will find all the information you need on our website.


We have recently completed our test and development phase and will start the first projects in Indonesia in the third quarter of 2018.


View our latest research and development work and learn more about VTC and HTC.

  • VTC plant for the processing of municipal waste

    All countries of the world produce large amounts of municipal waste. This waste was and is to date deposited without structure on large, more or less controlled landfills.

    The biogenic percentage of household waste greatly exceeds 50 % in most countries of the world. As a result, this waste can generally no longer be recovered in an incineration plant without auxiliary firing.

    Our VTC plants convert this biogenic waste into carbon-neutral biochar.

    Incinerating biochar instead of fossil hard or brown coal reduces the CO2 emissions significantly and thus protects the environment.

    By the way: Our biochar can also be used for auxiliary firing during waste incineration.

    Our Canadian partner Itt International Technology Transfer Inc. from Vancouver was assigned by the Indonesian Government to find a sustainable solution to these problems, with special consideration of those who are currently living on the landfills, trying to make a living by collecting and selling recyclable materials from the waste delivered and deposited. Ensuring these people and their children a better future and at the same time mitigating climate change is a challenge we are ready to take on.

    Four large segregation lines will be installed on the plant which dimensions will amount to 2,000 to 3,000 m³/d. Up to 300 employees can be employed at these lines, in a three-shift system, seven days a week. Their salary can be drawn – for the main part – from the sale of the sorted recyclable materials.

    Furthermore, housing for these families will be provided near the VTC plant and can be centrally supplied with electricity and drinking water. There will be a school bus for the children.

    The waste water from the settlement can be also processed in the VTC plant.



  • VTC plants for the processing of wood and green waste from industry and municipalities

    The wood processing industry, cities and municipalities produce large amounts of biogenic waste every year. This waste can be directly used in the VTC plant – without any sorting, only coarsely comminuted.

    The VTC plant converts this waste into high-quality carbon-neutral biochar.

    Incinerating this carbon-neutral biochar instead of fossil hard or brown coal reduces the CO2 emissions significantly and thus protects the environment.

  • Sludge treatment via hydrothermal carbonization (HTC)

    Energy supply resulting from the production of steam and heat and its usage in treatment plants.

    The technical possibilities to make a treatment plant energy self-sufficient.

    Each waste water treatment plant always produces sewage sludge with a high amount of carbon.

    Today, depending on the local conditions, this sewage sludge is disposed in the agricultural sector, in landfills or in incineration plants. All these options are very expensive.

    The possibilities to generate energy from sewage sludge are very limited. Nowadays, only sewage sludge digestion with gas production and electricity and heat generation are used for this purpose.

    However, the hydrothermal carbonization HTC is the better option!

    At HTC, the best way is to remove the sewage sludge from the treatment plant as early as possible, namely, directly behind a thickener (static or mechanical). In consequence, the largest proportion of carbon remains in the sewage sludge.

    In the carbonization process, the sewage sludge is heated to approx. 220 °C and kept at that temperature for approx. 3 hours. The resulting biochar is then cooled in a heat exchanger, dewatered to approx. 60 % to 70 % dry matter in a chamber filter press and, if necessary, dried.

    This biochar can be fed into a boiler system with a steam generator and a steam turbine or into a biochar gasification with in-line CHP. The electricity and the heat can be used in the treatment plant.

    As the amount of carbon in the sewage sludge does not meet the entire demand for electric power of the treatment plant, other sewage sludge from neighboring treatment plants or green waste can be used. Organic household waste or fermentation residues from surrounding biogas plants can be carbonized as well.

    This could make a treatment plant independent from external price effects (disposal of sewage sludge, purchase of electricity and heat).