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Energy-efficient cascade use of biogenic waste taking into account new requirements for waste air treatment and compost quality


2020 until 2023


by the Federal Ministry for Economic Affairs and Energy
Funding code 03EN2033A/B/C/D/E/F

Research partners
MKW – Materialkreislauf- und Kompostwirtschaft GmbH & Co. KG
pbo Ingenieurgesellschaft mbH, Aachen
PlasmaAir AG
RWTH Aachen University, Institute for Treatment and Recycling (I.A.R.)
STRABAG Umwelttechnik GmbH
University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Waste Management (ISWA)

Task and implementation

The aim of the EKaBio joint research project is to modify the process management of bioprocessing plants using cascade utilisation in such a way that maximum energy efficiency is achieved while at the same time complying with future exhaust air standards. To this end, process parameters of the treatment chain are to be systematically varied and the energy yield in the anaerobic process maximised.

The basis of our research work will be large-scale investigations, which we will carry out in a plant in the district of Aurich with original biowaste. Among other things, a biowaste treatment plant with cascade utilisation is located at the site. In order not to endanger its regular operation, the batch tests are also being carried out in the neighbouring mechanical-biological treatment plant for residual waste. The continuous rotting tests, which are decisive for energy consumption, are mainly carried out in the cascade plant.


  1. Planning, preparation and participation in the awarding of contracts for the retrofitting of heat exchangers for the air supply in the composting tunnels
  2. Participation in the planning and evaluation of the trial operation of biowaste composting with different mixing ratios and heat input
  3. Determining the energy efficiency of both composting and the overall plant in different modes of operation
  4. Technical-economic evaluation of the remaining work packages

Participation in the overall coordination of the research project

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