E3S Web Conf.
Volume 44, 201810th Conference on Interdisciplinary Problems in Environmental Protection and Engineering EKO-DOK 2018
|Number of page(s)||6|
|Published online||03 July 2018|
Properties of ashes formed after the combustion of sewage sludge
Kielce University of Technology, Faculty of Environmental, Geomatic and Energy Engineering, Department of Water Supply and Sewage Technology, al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland
2 Kielce University of Technology, Faculty of Civil Engineering and Architecture, al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland
* Corresponding author: firstname.lastname@example.org
The objective of the research presented in the paper was to analyze the ash formed in the process of incineration in the thermal sewage sludge treatment facility being a part of Sitkówka-Nowiny wastewater treatment plant, located in the vicinity of Kielce. The research involved the investigation of heavy metal and total phosphorus content, leachability of certain ions and X-ray phase analysis. The comparison of the obtained results with those available in literature revealed similarities in the crystallographic structure of ashes from different treatment plants. Then, the differences observed in the content of heavy metals in particular ashes are related to the composition of sewage flowing into treatment plants. Attention was also paid to a significant sulphate content revealed in the leachability analysis, found both in the ash from Sitkówka-Nowiny treatment plant and in the ash analyses results available in the literature sources. High sulphate concentration can limit the use of ash for construction purposes.
© The Authors, published by EDP Sciences, 2018
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