The new strategy of using humic acid loaded biochar to enhance the anaerobic digestion of cow manure for methane production

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F23%3A97290" target="_blank" >RIV/60460709:41330/23:97290 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jclepro.2023.139353" target="_blank" >http://dx.doi.org/10.1016/j.jclepro.2023.139353</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jclepro.2023.139353" target="_blank" >10.1016/j.jclepro.2023.139353</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The new strategy of using humic acid loaded biochar to enhance the anaerobic digestion of cow manure for methane production

Popis výsledku v původním jazyce

Anaerobic digestion is a beneficial way to convert organic waste resources, such as cow manure, into clean energy through microbial actions. However, when biochar was used as an additive to promote the efficiency of anaerobic digestion, there was a problem that the number of oxygen-containing functional groups was small, resulting in a limited effect on improving the electronic transport efficiency of the anaerobic digestion system. In this study, a high oxygen functional group containing humic acid biochar was prepared using ball milling technology to enhance reactivity and improve the anaerobic digestion performance of cow manure. The results showed that humic acid biochar had a more excellent performance in improving the gas production efficiency of cow manure AD. The addition of humic acid biochar did not significantly affect methane content. The humic acid biochar with a milling time of 8 h showed the best promotion effect in the anaerobic digestion system, and the methane yield reached 110.49 mL/gVS, which was 43.16% higher than that of the control group. The addition of humic acid biochar stimulated the secretion of extracellular polymers and enhanced interspecific electron transfer, leading to increased activity of key enzymes, including coenzyme F420. As a result, hydrogen-producing methanogens were enriched, methanogenic pathways were enhanced, and methane production was ultimately increased. Therefore, it improves intermediate product yield and utilization efficiency, thereby increasing methane production, and has great potential in the treatment of refractory organic waste.

Název v anglickém jazyce

The new strategy of using humic acid loaded biochar to enhance the anaerobic digestion of cow manure for methane production

Popis výsledku anglicky

Anaerobic digestion is a beneficial way to convert organic waste resources, such as cow manure, into clean energy through microbial actions. However, when biochar was used as an additive to promote the efficiency of anaerobic digestion, there was a problem that the number of oxygen-containing functional groups was small, resulting in a limited effect on improving the electronic transport efficiency of the anaerobic digestion system. In this study, a high oxygen functional group containing humic acid biochar was prepared using ball milling technology to enhance reactivity and improve the anaerobic digestion performance of cow manure. The results showed that humic acid biochar had a more excellent performance in improving the gas production efficiency of cow manure AD. The addition of humic acid biochar did not significantly affect methane content. The humic acid biochar with a milling time of 8 h showed the best promotion effect in the anaerobic digestion system, and the methane yield reached 110.49 mL/gVS, which was 43.16% higher than that of the control group. The addition of humic acid biochar stimulated the secretion of extracellular polymers and enhanced interspecific electron transfer, leading to increased activity of key enzymes, including coenzyme F420. As a result, hydrogen-producing methanogens were enriched, methanogenic pathways were enhanced, and methane production was ultimately increased. Therefore, it improves intermediate product yield and utilization efficiency, thereby increasing methane production, and has great potential in the treatment of refractory organic waste.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF CLEANER PRODUCTION

ISSN

0959-6526

e-ISSN

0959-6526

Svazek periodika

428

Číslo periodika v rámci svazku

2023

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

001105959900001

EID výsledku v databázi Scopus

2-s2.0-85174625597