Handling residual animal fats by vermicomposting with continuous feeding
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F25%3A102369" target="_blank" >RIV/60460709:41210/25:102369 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s13399-025-06716-0" target="_blank" >https://link.springer.com/article/10.1007/s13399-025-06716-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s13399-025-06716-0" target="_blank" >10.1007/s13399-025-06716-0</a>
Alternative languages
Result language
angličtina
Original language name
Handling residual animal fats by vermicomposting with continuous feeding
Original language description
The disposal of residual animal fats poses significant environmental challenges. This study aims to explore vermicomposting as an eco-friendly solution for managing this waste. We investigated the vermicomposting of animal fats combined with varying ratios of straw pellets to ensure appropriate C:N ratio, pH, and porosity. We used Eisenia andrei earthworms and established five treatments: four with different fat-to-straw ratios (1:0, 3:1, 1:1, 1:3) and one control without earthworms (1:1). Our findings indicate that adding straw pellets enhances the vermicomposting process. The most effective ratio was 1:3 (fat-to-straw), ensuring good porosity and producing high-quality fertilizer. At a 1:1 ratio, we observed a positive correlation between total calcium (Ca) content and the number of earthworms, as well as with pH, total potassium (K), and magnesium (Mg) levels. The most substantial reduction in heavy metals was observed for molybdenum (Mo) at the 1:3 ratio (62%) and zinc (Zn) at the 1:1 ratio (54%). The 1:1 ratio also resulted in higher microorganism levels and statistically significantly higher enzymatic activity compared to other variants with earthworms. Despite occasional zinc or copper contamination, enzymatic activity remained at high levels, and heavy metal levels decreased to acceptable values. This research highlights the potential of vermicomposting for managing animal fat waste and producing nutrient-rich fertilizers, offering valuable insights into sustainable waste management.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Biomass Conversion and Biorefinery
ISSN
2190-6815
e-ISSN
2190-6815
Volume of the periodical
15
Issue of the periodical within the volume
14
Country of publishing house
DE - GERMANY
Number of pages
14
Pages from-to
20935-20948
UT code for WoS article
001439009500001
EID of the result in the Scopus database
2-s2.0-86000353913