Column leaching from biomass combustion ashes

Alberto Maresca, Thomas Fruergaard Astrup

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

254 Downloads (Pure)


The utilization of biomass combustion ashes for forest soil liming and fertilizing has been addressed in literature. Though, a deep understanding of the ash chemical composition
and leaching behavior is necessary to predict potential benefits and environmental risks related to this practice. In this study, a fly ash sample from an operating Danish power plant based on wood biomass was collected, chemically characterized and investigated for its leaching release of nutrients and heavy metals. A column leaching test was employed. The strongly alkaline pH of all the collected eluates suggested the potential suitability of the ash as a liming material. Although high contents of nutrients were detected, differences in their leaching release were found. Heavy metals were detected within typical literature contents for Nordic countries ashes.
Original languageEnglish
Title of host publicationProceedings Sardinia 2015, Fifteenth International Waste Management and Landfill Symposium
Number of pages6
Place of PublicationCagliari, Italy
PublisherCISA Publisher
Publication date2015
Publication statusPublished - 2015
EventSardinia 2015 - 15th International Waste Management and Landfill Symposium - Cagliari, Italy
Duration: 5 Oct 20159 Oct 2015
Conference number: 15


ConferenceSardinia 2015 - 15th International Waste Management and Landfill Symposium


Dive into the research topics of 'Column leaching from biomass combustion ashes'. Together they form a unique fingerprint.

Cite this