Understanding the physicochemical structure of biochar affected by feedstock, pyrolysis conditions, and post-pyrolysis modification methods - A meta-analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F24%3A43908931" target="_blank" >RIV/60076658:12220/24:43908931 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jece.2024.114885" target="_blank" >https://doi.org/10.1016/j.jece.2024.114885</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jece.2024.114885" target="_blank" >10.1016/j.jece.2024.114885</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Understanding the physicochemical structure of biochar affected by feedstock, pyrolysis conditions, and post-pyrolysis modification methods - A meta-analysis

Popis výsledku v původním jazyce

The impact of feedstock type, pyrolysis conditions, and post-pyrolysis modifications on the physicochemical properties of biochar has not been systematically evaluated. To this, a comprehensive meta-analysis was conducted to assess the impact of 17 effective variables including three groups of modification techniques (acidic, alkalic, H2O2, metal oxides, microbial, organic acids, physical, soil mineral), pyrolysis temperature (&lt;400, 400-550, &gt;550 degrees C), and feedstocks (herbaceous, hull, manure, nut, straw, wood). Also, 26 properties of the biochar were identified as being impacted; some of the most important among them are pH, cation exchange capacity (CEC), ash content (AC), specific surface area (SSA), carbonization (H/C), and surface functional groups (SFGs). The CEC of biochar modified by acidic, and soil mineral treatment significantly increased by 44.8 % and 48.5 %. The H/C ratio of biochar decreased in alkalic modification with a negative effect size of 7.2 %. Soil minerals, metal oxides, and alkalic modifications resulted in a positive change in AC with a 20.9 %, 15.7 %, and 13.6 % increase. Also, the highest SSA of modified biochar was observed when acidic and H2O2 modification methods were applied, with 57.1 % and 53.4 % effect sizes. Further, high pyrolysis temperature (&gt;550 degrees C) aided in significantly increasing SSA and SFGs on modified biochar. Overall, the strong association of acidic modifiers, high pyrolysis temperature, and high lignin-based feedstock could contribute to high SSA, SFGs, and absorption efficiency of biochar. This meta-analysis establishes a robust comparative framework, advancing the precision of biochar modification strategies to maximize physicochemical properties for improved environmental remediation.

Název v anglickém jazyce

Understanding the physicochemical structure of biochar affected by feedstock, pyrolysis conditions, and post-pyrolysis modification methods - A meta-analysis

Popis výsledku anglicky

The impact of feedstock type, pyrolysis conditions, and post-pyrolysis modifications on the physicochemical properties of biochar has not been systematically evaluated. To this, a comprehensive meta-analysis was conducted to assess the impact of 17 effective variables including three groups of modification techniques (acidic, alkalic, H2O2, metal oxides, microbial, organic acids, physical, soil mineral), pyrolysis temperature (&lt;400, 400-550, &gt;550 degrees C), and feedstocks (herbaceous, hull, manure, nut, straw, wood). Also, 26 properties of the biochar were identified as being impacted; some of the most important among them are pH, cation exchange capacity (CEC), ash content (AC), specific surface area (SSA), carbonization (H/C), and surface functional groups (SFGs). The CEC of biochar modified by acidic, and soil mineral treatment significantly increased by 44.8 % and 48.5 %. The H/C ratio of biochar decreased in alkalic modification with a negative effect size of 7.2 %. Soil minerals, metal oxides, and alkalic modifications resulted in a positive change in AC with a 20.9 %, 15.7 %, and 13.6 % increase. Also, the highest SSA of modified biochar was observed when acidic and H2O2 modification methods were applied, with 57.1 % and 53.4 % effect sizes. Further, high pyrolysis temperature (&gt;550 degrees C) aided in significantly increasing SSA and SFGs on modified biochar. Overall, the strong association of acidic modifiers, high pyrolysis temperature, and high lignin-based feedstock could contribute to high SSA, SFGs, and absorption efficiency of biochar. This meta-analysis establishes a robust comparative framework, advancing the precision of biochar modification strategies to maximize physicochemical properties for improved environmental remediation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Environmental Chemical Engineering

ISSN

2213-2929

e-ISSN

2213-3437

Svazek periodika

12

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

001364630200001

EID výsledku v databázi Scopus

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