E3S Web Conf.
Volume 30, 2018The First Conference of the International Water Association IWA for Young Scientist in Poland “Water, Wastewater and Energy in Smart Cities”
|Number of page(s)||8|
|Published online||06 February 2018|
Sewage sludge conditioning with the application of ash from biomass-fired power plant
Rzeszow University of Technology, Department of Materials Forming and Processing, Powstańców Warszawy 8, 35-959 Rzeszow, Poland
2 Rzeszow University of Technology, Department of Chemistry and Environmental Engineering, Powstańców Warszawy 6, 35-959 Rzeszow, Poland
* Corresponding author: email@example.com
During biomass combustion, there are formed combustion products. Available data indicates that only 29.1 % of biomass ashes were recycled in Poland in 2013. Chemical composition and sorptive properties of ashes enable their application in the sewage sludge treatment. This paper analyses the impact of ashes from biomass-combustion power plant on sewage sludge dewatering and higienisation. The results obtained in laboratory tests proved the possitive impact of biomass ashes on sewage sludge hydration reduction after dewatering and the increase of filtrate volume. After sludge conditioning with the use of biomass combustion by-products, the final moisture content decreased by approximatelly 10÷25 % in comparison with raw sewage sludge depending on the method of dewatering. The application of biomass combustion products in sewage sludge management could provide an alternative method of their utilization according to law and environmental requirements.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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