Detail publikačního výsledku
Characterization of humic acids in a continuous-feeding vermicomposting system with horse manure
HANČ, A.; ENEV, V.; HŘEBEČKOVÁ, T.; KLUČÁKOVÁ, M.; PEKAŘ, M.
Original Title
Characterization of humic acids in a continuous-feeding vermicomposting system with horse manure
English Title
Characterization of humic acids in a continuous-feeding vermicomposting system with horse manure
Type
WoS Article
Original Abstract
The increasing numbers of kept horses create problems with processing horse manure as important local waste. This work was focused on horse manure vermicomposting in a real-field continuous-feeding system under controlled conditions, and on the complex study of the maturity and stability of the produced vermicompost. Commonly used simple indicators such as the C/N ratio, N-NH4+/N-NO3− ratio, DOC or ion exchange capacity, and also more advanced spectroscopic and thermoanalytic techniques were used and applied on the humic substances isolated from the vermicompost during its maturation (12 months in total). When compared with the original horse manure, vermicomposting decreased the aliphatic, protein-like, and polysaccharide humic components, whereas vermicomposting increased the aromaticity and contents of oxygen-containing functional groups. The typical tryptophan-like fluorophores in the manure, corresponding to the freshly produced organic matter of biological or microbial origin, were progressively transformed to humic-like fluorophores during vermicomposting. The most thermally labile humic fraction disappeared quickly during the very early vermicomposting stages. The results of spectroscopic and thermogravimetric analyses suggest that stable and mature vermicompost was produced after 6–9 months of vermicomposting, which was also supported by biologically-based maturity indicators.
English abstract
The increasing numbers of kept horses create problems with processing horse manure as important local waste. This work was focused on horse manure vermicomposting in a real-field continuous-feeding system under controlled conditions, and on the complex study of the maturity and stability of the produced vermicompost. Commonly used simple indicators such as the C/N ratio, N-NH4+/N-NO3− ratio, DOC or ion exchange capacity, and also more advanced spectroscopic and thermoanalytic techniques were used and applied on the humic substances isolated from the vermicompost during its maturation (12 months in total). When compared with the original horse manure, vermicomposting decreased the aliphatic, protein-like, and polysaccharide humic components, whereas vermicomposting increased the aromaticity and contents of oxygen-containing functional groups. The typical tryptophan-like fluorophores in the manure, corresponding to the freshly produced organic matter of biological or microbial origin, were progressively transformed to humic-like fluorophores during vermicomposting. The most thermally labile humic fraction disappeared quickly during the very early vermicomposting stages. The results of spectroscopic and thermogravimetric analyses suggest that stable and mature vermicompost was produced after 6–9 months of vermicomposting, which was also supported by biologically-based maturity indicators.
Keywords
Humic acids; Chemical and spectroscopic techniques; Vermicomposting; Continuous-feeding system; Horse manure
Key words in English
Humic acids; Chemical and spectroscopic techniques; Vermicomposting; Continuous-feeding system; Horse manure
Authors
HANČ, A.; ENEV, V.; HŘEBEČKOVÁ, T.; KLUČÁKOVÁ, M.; PEKAŘ, M.
RIV year
2020
Released
19.08.2019
ISBN
0956-053X
Periodical
Waste Management
Volume
99
State
United States of America
Pages from
1
Pages to
11
Pages count
11
URL
Full text in the Digital Library
BibTex
@article{BUT158258,
author="Aleš {Hanč} and Vojtěch {Enev} and Tereza {Hřebečková} and Martina {Klučáková} and Miloslav {Pekař}",
title="Characterization of humic acids in a continuous-feeding vermicomposting system with horse manure",
journal="Waste Management",
year="2019",
volume="99",
number="0",
pages="1--11",
doi="10.1016/j.wasman.2019.08.032",
issn="0956-053X",
url="https://www.sciencedirect.com/science/article/pii/S0956053X19305513?via%3Dihub"
}