Handling residual animal fats by vermicomposting with continuous feeding

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Handling residual animal fats by vermicomposting with continuous feeding

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Handling residual animal fats by vermicomposting with continuous feeding

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Biomass Conversion and Biorefinery

ISSN

2190-6815

e-ISSN

2190-6815

Svazek periodika

15

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

14

Strana od-do

20935-20948

Kód UT WoS článku

001439009500001

EID výsledku v databázi Scopus

2-s2.0-86000353913