Hydrothermal Carbonization (HTC) is a thermochemical process for the conversion of organic substances to a hydrophobic solid of reduced mass and increased fuel value. The main subjective of this master thesis is to evaluate the technical and financial feasibility of the HTC-process for the implementation into an existing compost plant. It is shown, that this emerging technology is already technically and financially feasible if implemented into an existing infrastructure. Additional research and development is still need for optimization of this process especially with regard to a continuous operation of a plant of industrial scale. However, hydrothermal carbonization has a great potential not only for the treatment of organic waste, but for a green and sustainable production of highly functionalized carbonaceous materials for the application in the fields of catalysis, adsorption and energy storage.