Please use this identifier to cite or link to this item:
Or use following links to share this resource in social networks: Recommend this item
Title Synergetic effect of digestate dissolved organic matter and phosphogypsum properties on heavy metals immobilization in soils
Authors Skvortsova, Polina Oleksiivna  
Ablieieva, Iryna Yuriivna  
Tonderski, K.
Chernysh, Yelyzaveta Yuriivna  
Pliatsuk, Leonid Dmytrovych  
Sipko, Iryna Oleksandrivna  
Mykhno, H.I.
Keywords anaerobic digestion
chemical pollution
ecological risk
soil degradation
soil restoration
Type Article
Date of Issue 2024
Publisher Sumy State University
License Creative Commons Attribution - NonCommercial 4.0 International
Citation Skvortsova P. O., Ablieieva I. Yu., Tonderski K., Chernysh Ye. Yu., Plyatsuk L. D., Sipko I. O., Mykhno H. I. (2024). Synergetic effect of digestate dissolved organic matter and phosphogypsum properties on heavy metals immobilization in soils. Journal of Engineering Sciences (Ukraine), Vol. 11(1), pp. H9–H20.
Abstract The main idea was to justify the natural, technological, and ecological aspects of digestate-based composite for heavy metals (HMs) binding in soil due to organic matter content and mineral additives’ biosorption properties. The study aimed to determine the potential of a composite made from digestate and phosphogypsum for remediation of HMs polluted soils and the role of dissolved organic matter (DOM) in binding HMs. Methods used included a literature review to identify the mechanisms for HM binding to digestate DOM, a laboratory setup for producing a digestate-based composite with digestate (from manure or sewage sludge) mixed with phosphogypsum, and an analysis of digestate fluorescence properties. Results show that a composite based on digestate from manure as feedstock had a higher fluorescence complexity index than a composite with sewage sludge digestate (2.2 and 1.71, respectively). However, the DOM stability in the sewage sludge digestate composite was higher than reported in the literature, probably due to the mineral composition of phosphogypsum, which resulted in a high HMs sorption capacity and its positive effect on soil microbial activity. Based on the theoretical substantiation of DOM content and its binding properties, manure was the most effective feedstock type out of the two tested if digestate was used for HM remediation. Using a digestate-based composite with phosphogypsum can potentially reduce the ecological risk levels imposed by HM-contaminated soils from considerably too low.
Appears in Collections: Journal of Engineering Sciences / Журнал інженерних наук


Australia Australia
China China
Germany Germany
Japan Japan
Pakistan Pakistan
Singapore Singapore
Ukraine Ukraine
United States United States
Unknown Country Unknown Country


China China
United States United States
Unknown Country Unknown Country


File Size Format Downloads
Skvortsova_jes_1_2024.pdf 854,24 kB Adobe PDF 52

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.