The Impact of Nutshell Biochar on the Environment as an Alternative Fuel or as a Soil Amendment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41310%2F23%3A94576" target="_blank" >RIV/60460709:41310/23:94576 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41110/23:94576 RIV/60460709:41210/23:94576

Výsledek na webu

<a href="https://www.mdpi.com/1996-1944/16/5/2074" target="_blank" >https://www.mdpi.com/1996-1944/16/5/2074</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma16052074" target="_blank" >10.3390/ma16052074</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Impact of Nutshell Biochar on the Environment as an Alternative Fuel or as a Soil Amendment

Popis výsledku v původním jazyce

Walnut, pistachio, and peanut nutshells were treated by pyrolysis to biochar and analyzed for their possible usage as fuels or soil fertilizers. All the samples were pyrolyzed to five different temperatures, i.e., 250 degrees C, 300 degrees C, 350 degrees C, 450 degrees C, and 550 degrees C. Proximate and elemental analyses were carried out for all the samples, as well as calorific value and stoichiometric analysis. For sample usage as a soil amendment, phytotoxicity testing was performed and the content of phenolics, flavonoids, tannin, juglone, and antioxidant activity were determined. To characterize the chemical composition of walnut, pistachio, and peanut shells, lignin, cellulose, holocellulose, hemicellulose, and extractives were determined. As a result, it was found that walnut shells and pistachio shells are best pyrolyzed at the temperature of 300 degrees C and peanut shells at the temperature of 550 degrees C for their use as alternative fuels. The highest measured net calorific value was in pistachio shells, which were biochar pyrolyzed at 550 degrees C, of 31,35 MJ kg(-1). On the other hand, walnut biochar pyrolyzed at 550 degrees C had the highest ash share of 10,12% wt. For their use as soil fertilizers, peanut shells were the most suitable when pyrolyzed at 300 degrees C, walnut shells at 300 and 350 degrees C, and pistachio shells at 350 degrees C.

Název v anglickém jazyce

The Impact of Nutshell Biochar on the Environment as an Alternative Fuel or as a Soil Amendment

Popis výsledku anglicky

Walnut, pistachio, and peanut nutshells were treated by pyrolysis to biochar and analyzed for their possible usage as fuels or soil fertilizers. All the samples were pyrolyzed to five different temperatures, i.e., 250 degrees C, 300 degrees C, 350 degrees C, 450 degrees C, and 550 degrees C. Proximate and elemental analyses were carried out for all the samples, as well as calorific value and stoichiometric analysis. For sample usage as a soil amendment, phytotoxicity testing was performed and the content of phenolics, flavonoids, tannin, juglone, and antioxidant activity were determined. To characterize the chemical composition of walnut, pistachio, and peanut shells, lignin, cellulose, holocellulose, hemicellulose, and extractives were determined. As a result, it was found that walnut shells and pistachio shells are best pyrolyzed at the temperature of 300 degrees C and peanut shells at the temperature of 550 degrees C for their use as alternative fuels. The highest measured net calorific value was in pistachio shells, which were biochar pyrolyzed at 550 degrees C, of 31,35 MJ kg(-1). On the other hand, walnut biochar pyrolyzed at 550 degrees C had the highest ash share of 10,12% wt. For their use as soil fertilizers, peanut shells were the most suitable when pyrolyzed at 300 degrees C, walnut shells at 300 and 350 degrees C, and pistachio shells at 350 degrees C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

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

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Svazek periodika

16

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

000946922900001

EID výsledku v databázi Scopus

2-s2.0-85149902415