E3S Web Conf.
Volume 22, 2017International Conference on Advances in Energy Systems and Environmental Engineering (ASEE17)
|Number of page(s)||8|
|Published online||07 November 2017|
Integrated assessment of soil quality after application of the biogas fermentation residues – a laboratory experiment
West Pomeranian University of Technology, Faculty of Environmental Management and Agriculture, Department of Plant Physiology and Biochemistry, ul. Słowackiego 17, 71-434 Szczecin, Poland
2 West Pomeranian University of Technology, Faculty of Environmental Management and Agriculture, Department of Chemistry, Microbiology and Environmental Biotechnology, ul. Słowackiego 17, 71-434 Szczecin, Poland
3 West Pomeranian University of Technology, Faculty of Environmental Management and Agriculture, Department of Soil Science, Grassland Management and Environmental Chemistry, ul. Słowackiego 17, 71-434 Szczecin, Poland
4 Biowatt S.A., ul. Blacharska 2, 61-006 Poznań, Poland
5 Jan Długosz University in Częstochowa, Faculty of Mathematics and Natural Sciences, Department of Biochemistry and Ecotoxicology, al. Armii Krajowej 13/15, 42-200 Częstochowa, Poland
6 West Pomeranian University of Technology, Faculty of Environmental Management and Agriculture, Department of Construction and Use of Technical Devices, ul. Papieża Pawła VI 3, 71-459 Szczecin, Poland
* Corresponding author: firstname.lastname@example.org
The aim of study was to determine the impact of three different biogas fermentation residues on some chemical and biochemical characteristics in sandy soil. The laboratory experiment was carried out on loamy sand. Residues were added to soil samples in the forms of pulp, drought, and granulate at dosages of 10, 50, and 100 g·kg-1. The reference was the soil sample without residues. On day 28, the content of macroelements and heavy metals was determined. In addition, on days 1, 7, 14, 28, and 56, the content of biomass and the activities of some hydrolases and oxidoreductases were assayed. Results showed that the application of all fermentation residues caused an increase in most of the chemical parameters. The highest impact on pH and the content of Ctot, Ntot, Stot, K, and P was observed in the soil treated with granulate, whereas the increase in the content of heavy metals was the highest after the drought application. The effect of biogas fermentation residues on all hydrolases and o-diphenol oxidase activities was mostly significant, but depended on the kind of residues and the day of experiment. Biomass content and the activity of dehydrogenase were increased in the whole experiment.
© The Authors, published by EDP Sciences, 2017
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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