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The common way of handling sludge from pulp and paper mill’s waste water treatment plant (WWTP) is combusting it at the site. Combustion is rather a way to dispose the sludge than take advantage of its energy content. This paper assesses the potential to convert the wet low-value feedstock, specifically WWTP’s secondary sludge, to a more valuable bioenergy product called hydrochar through hydrothermal carbonization (HTC) using C-Green’s innovative OxyPower HTC technology. We assess the integration to a Nordic sulphate pulp mill with different assumptions and compare the results to current situation of combusting sludge in the recovery boiler. The approach contains assessment of effects of integration to pulp mill’s mass and energy balance (e.g. power consumption), study of the markets, economic assessment and assessment of effects on greenhouse gas emissions.
|Title of host publication||29th European Biomass Conference: Setting the course for a biobased economy|
|Subtitle of host publication||Proceedings of the International conference held online|
|Editors||N. Scarlat, A. Grassi|
|Publisher||ETA-Florence Renewable Energies|
|Number of pages||7|
|Publication status||Published - 29 Apr 2021|
|MoE publication type||B3 Non-refereed article in conference proceedings|
|Event||29th European Biomass Conference and Exhibition, EUBCE 2021 - Online, Virtual, Online|
Duration: 26 Apr 2021 → 29 Apr 2021
|Series||European Biomass Conference and Exhibition Proceedings|
|Conference||29th European Biomass Conference and Exhibition, EUBCE 2021|
|Period||26/04/21 → 29/04/21|
- hydrothermal carbonization
- wastewater treatment
- pulp and paper industry
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- 1 Finished
BIOFIT: Bioenergy retrofits for Europe's industry
Mäki, E., Saastamoinen, H., Pihkola, H. & Melin, K.
1/10/18 → 31/03/22
Project: EU project