Effect of sewage sludge and digestate from anaerobic fermentation on the accumulation of cadmium (Cd), gallium (Ga), germanium (Ge), and rare earth elements (REEs) in soil and uptake by plants with different nutrition strategies

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F25%3A00014122" target="_blank" >RIV/46747885:24620/25:00014122 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22320/25:43931725

Result on the web

<a href="https://doi.org/10.3389/fenvs.2025.1628175" target="_blank" >https://doi.org/10.3389/fenvs.2025.1628175</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fenvs.2025.1628175" target="_blank" >10.3389/fenvs.2025.1628175</a>

Result language

angličtina

Original language name

Effect of sewage sludge and digestate from anaerobic fermentation on the accumulation of cadmium (Cd), gallium (Ga), germanium (Ge), and rare earth elements (REEs) in soil and uptake by plants with different nutrition strategies

Original language description

This study investigates how sewage sludge and liquid digestate, as biosolid amendments, affect the mobility of cadmium (Cd), gallium (Ga), germanium (Ge), and rare earth elements (REEs) in soil, as well as their uptake by plants with differing nutritional strategies. Four species Alyssum murale, Lupinus albus, Fagopyrum esculentum, and Carthamus tinctorius were cultivated on unamended soil or soil amended with either sewage sludge or digestate. Shoot uptake of the essential elements P, Fe, Mn, Ni and of non-essential elements was evaluated alongside changes in ammonium-acetate-extractable (labile) element concentrations. For three species, root carboxylate exudation and rhizosphere acidification were also measured under variable phosphorus (P) supply conditions induced by the amendments. Both biosolids improved micronutrient availability across all species. However, increased shoot P concentrations were only observed in plants treated with sewage sludge. Digestate addition elevated total Ge (14.4%), labile Ga (178%), and labile REE (22%) concentrations in soil, while sewage sludge increased labile Cd (31%) and decreased labile REEs (18%) concentration. Neither amendment enhanced Ge uptake by plants. A higher proportion of labile Cd correlated with a higher Cd uptake in all tested plant species. However, the shoot net uptake of Ga and REE did not reflect their mobility in soil. More specifically, a higher Ga mobility in soil only increased Ga uptake in F. esculentum. F. esculentum acidified the rhizosphere and released fewer carboxylates under conditions of high P supply. Despite lower labile REEs concentrations in sewage sludge amended soil, L. albus and F. esculentum accumulated more REEs when the P supply was increased due to biosolids addition. The findings highlight that while Cd transfer is predictably linked to its labile soil pool, the uptake of Ge, Ga, and REEs depends on complex interactions between soil chemistry and plant-specific physiological traits responses to biosolid-derived nutrient inputs.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Frontiers in Environmental Science>

ISSN

2296-665X

e-ISSN

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Volume of the periodical

13

Issue of the periodical within the volume

JUL 9

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

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UT code for WoS article

001533097000001

EID of the result in the Scopus database

2-s2.0-105011346418