Biochar Control of Water Regime and Adsorption Rate in Soils

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F25%3A00638457" target="_blank" >RIV/67985858:_____/25:00638457 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43932952 RIV/60461373:22320/25:43932952

Výsledek na webu

<a href="https://www.mdpi.com/2076-3417/15/17/9392" target="_blank" >https://www.mdpi.com/2076-3417/15/17/9392</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/app15179392" target="_blank" >10.3390/app15179392</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Biochar Control of Water Regime and Adsorption Rate in Soils

Popis výsledku v původním jazyce

The effect of adding 10% biochar (B) or sludgechar (SL) on the water regime and adsorption properties of soils was tested on composites prepared by mixing two standard soils of loamy and clay type with B or SL in a 90:10 weight ratio. Water-holding capacity was assessed as initial (2 h) and equilibrium (24 h). Water retention time was estimated by evaporation from saturated samples at 20 °C to a constant weight. The composites exhibited a 60–90% increase in water absorption compared to the individual soils, retaining water up to 3–6 days longer than the individual soils. The adsorption properties were tested for cation (Pb2+) and anion (Sb(OH)6−) adsorption and for Pb2+ and Sb(OH)6− co-adsorption from model solutions under laboratory conditions. All samples showed higher selectivity for Pb2+, with the adsorption efficiency from 40% to 99%. Sb(OH)6− adsorption achieved a maximum efficiency of only 10%. Pb2+ and Sb(OH)6− co-adsorptions were efficient for Sb(OH)6− adsorption, reaching efficiency levels above 95%. At prolonged reaction times, the adsorption efficiency elevated by more than 20%. Only 10% wt. addition of biochar or sludgechar enhanced not only the water regime of soils but also their adsorption capacity for ionic contaminants.

Název v anglickém jazyce

Biochar Control of Water Regime and Adsorption Rate in Soils

Popis výsledku anglicky

The effect of adding 10% biochar (B) or sludgechar (SL) on the water regime and adsorption properties of soils was tested on composites prepared by mixing two standard soils of loamy and clay type with B or SL in a 90:10 weight ratio. Water-holding capacity was assessed as initial (2 h) and equilibrium (24 h). Water retention time was estimated by evaporation from saturated samples at 20 °C to a constant weight. The composites exhibited a 60–90% increase in water absorption compared to the individual soils, retaining water up to 3–6 days longer than the individual soils. The adsorption properties were tested for cation (Pb2+) and anion (Sb(OH)6−) adsorption and for Pb2+ and Sb(OH)6− co-adsorption from model solutions under laboratory conditions. All samples showed higher selectivity for Pb2+, with the adsorption efficiency from 40% to 99%. Sb(OH)6− adsorption achieved a maximum efficiency of only 10%. Pb2+ and Sb(OH)6− co-adsorptions were efficient for Sb(OH)6− adsorption, reaching efficiency levels above 95%. At prolonged reaction times, the adsorption efficiency elevated by more than 20%. Only 10% wt. addition of biochar or sludgechar enhanced not only the water regime of soils but also their adsorption capacity for ionic contaminants.

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

<a href="/cs/project/TN02000025" target="_blank" >TN02000025: Národní centrum pro energetiku II</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Applied Sciences-Basel

ISSN

2076-3417

e-ISSN

2076-3417

Svazek periodika

15

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

9392

Kód UT WoS článku

001569583000001

EID výsledku v databázi Scopus

2-s2.0-105015571389