Development and operation of a plant for inerting raw sewage sludge based on a fluidised bed gasifier
Development and operation of a plant for inerting raw sewage sludge based on a fluidised bed gasifier
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Editor: |
Nina Hack, M. Eng. |
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Duration: |
02/2015 to 01/2018 |
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Funding institution: |
European Regional Development Fund (ERDF) and Free State of Saxony |
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Project partners: |
Nagel Civil Engineering GmbH |
Project goals
- Development and testing of a decentralised thermochemical treatment plant for sewage sludge
- Development and testing of a thermal high-temperature storage tank
- Investigation of the possible uses of the plant in combination with the storage facility to support the integration of fluctuating electricity feed-in in the decentralised area
Expected advantages of the process to be investigated compared to the otherwise common sewage sludge digestion with digester gas conversion into electricity in a gas engine CHP (state of the art for large sewage treatment plants)
- Less equipment required - digester, gas cleaning, gas cooling and gas engine CHP are no longer required in the process
- Economical sewage sludge treatment process for small and medium-sized sewage treatment plants
- Higher overall efficiency (economy, utilisation rate and effectiveness)
- Reduction of residual waste requiring disposal by approx. 75% for small and medium-sized sewage treatment plants
- Inerted end product (ash) through reliable conversion of the organic components
- High overall efficiency of 69% due to high availability of the power supply unit