Our plants are designed to support the operation of landfills, agriculture and forestry as well as wastewater treatment plants to recycle, refine and reuse surplus products in a profitable and environmentally friendly way.

We offer our VTC plants in the following standard sizes:

Other sizes are available upon request, practically no matter the dimensions.

We develop, construct and implement, as well as operate the plants

for the initial start-up period according to your individual needs.

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

Please contact us or our partner ITT in Canada at info@intertecht.com
if you would you like to know more about our VTC Technology


You will find all the information pertaining to our VTC technology on the following pages.


Further information and application examples on the subject of HTC and VTC

  • VTC plants for the processing of municipal solid waste

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

    Our VTC plants convert this biogenic waste into carbon-neutral Bio-Coal!

    Combusting Bio-Coal in coalfired power plants instead of fossil coal reduces CO2 emissions significantly and is also Carbon Neutral.

  • 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 plants - without the necessity of sorting, as it can be used in its coarse format.

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

    Combusting Bio-Coal in coalfired power plants instead of fossil coal reduces CO2 emissions significantly and is also Carbon Neutral.

  • Sewage Sludge is predominantly processed through 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 produces sewage sludge with a high amount of carbon.

    Today, depending on 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, electricity and heat generation is used for this purpose.

    HTC is the better option for the processing of sewage sludge.

    For successful results with HTC, the best way is to remove the sewage sludge from the treatment plant as early as possible, directly after the polymerization stage (static or mechanical). Consequently, the largest proportion of carbon then remains in the sewage sludge.

    In the carbonization process, the sewage sludge is heated to under 300°C and kept at that temperature for approx. 3 hours. The resulting Bio-Coal is then cooled in a heat exchanger, dewatered to approx. 60 % to 70 % dry matter in a chamber filter press and, if necessary, dried further and processed through a pelletizer.

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

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

    This could make a wastewater treatment plant independent of external cost factors, such as the disposal cost of sewage sludge, as well as the cost for electricity and heat.