https://doi.org/10.24326/ICSA1.PP.01
Published online: 4 October 2024
1 Department of Agricultural and Environmental Chemistry, Hugo Kołłątaj University of Agriculture in Krakow,
Adama Mickiewicza 21, 31-120 Kraków, Poland
2 Institute of Soil Science, Environmental Engineering and Management, University of Life Sciences in Lublin, Leszczyńskiego 7, 20-069 Lublin, Poland
3 FHU ART PEL
4 University of West Attica, Thivon and P. Ralli 250, Aigaleo, 12244, Athens, Greece
* Corresponding author:
Abstract
Mineral and organic waste is a potential source of valuable micronutrients that can be obtained from the cultivation of reclamation plants. The aim of the study was to evaluate the content, uptake and use of Al, Mn, Fe, Co and Mo from ashes from coal and biomass combustion, municipal sewage sludge and their mixtures by grasses and legumes. In addition, the effect of the waste used on the mass ratios between the microelements in the plant biomass was examined. The field experiment included 8 objects: 1 control and 7 objects where ash from bituminous coal combustion, ash from biomass combustion and municipal sewage sludge were applied at a dose of 50 Mg/ha DM, as well as their mixtures at two doses: 50 Mg/ha DM and 100 Mg/ha DM. The study showed that the use of municipal sewage sludge increased the content of Al and Mo, as well as the uptake of Al by the plants. The highest uptake of Mn, Co, Fe was recorded in the control, while Mo was taken up after a single application of a mixture of ash from biomass and municipal sewage sludge. Ashes from the combustion of bituminous coal reduced the uptake of the tested microelements by the plants. The recovery of microelements by plants from different objects decreased in the following order: Mn>Mo>Co>Fe>Al. The use of wastes and their mixtures also contributed to an increase in the Fe:Mn ratio. When assessing the Fe:Mn mass ratio, it was found that the biomass obtained did not fulfil the criteria for its use for feed purposes. The combustion waste and municipal sewage sludge used are a potential source of micronutrients for plants used in the reclamation of degraded areas.
Keywords: microelements, remediation, coal and biomass ash, sewage sludge
How to cite
Antonkiewicz J., Kołodziej B., Bryk M., Babula J., Kądziołka M., Pełka R, Koliopoulos T., 2024. Phytorecovery of micronutrients from mineral and organic waste. 1st International Conference of Soil and Agriculture: Towards Soil Sustainability. https://doi.org/10.24326/ICSA1.PP.01