Growth of the Red Alga Galdieria sulphuraria in Red Mud-Containing Medium and Accumulation of Rare Earth Elements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00576235" target="_blank" >RIV/60077344:_____/23:00576235 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388971:_____/23:00576235 RIV/75010330:_____/23:00014469

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s12649-022-02021-3" target="_blank" >https://link.springer.com/article/10.1007/s12649-022-02021-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12649-022-02021-3" target="_blank" >10.1007/s12649-022-02021-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Growth of the Red Alga Galdieria sulphuraria in Red Mud-Containing Medium and Accumulation of Rare Earth Elements

Popis výsledku v původním jazyce

Red mud is a by-product of the production of alumina from bauxite ore. However, less than 2% of red mud produced is currently utilized. Red mud contains a number of residual scarce metals including rare earth elements, some at a considerable concentration, so synchronous cultures of the red microalga Galdieria sulphuraria were tested for their ability to grow in red mud-containing medium and accumulate these rare earth elements from the mud. Red mud was added to the growth medium as an acid extract (in 10% v/v HNO3). Pigment content and photosynthetic performance are indicators of physiological condition and stress levels in microalgae. Growth of the treated culture was suppressed compared to an untreated control and the content of chlorophyll a and phycocyanin decreased while carotenoids increased substantially. Photosynthetic performance, determined as Fv/Fm, was almost unaffected by the red mud treatment. The concentration of individual rare earth elements in the red mud extract and the biomass, was determined using ICP-MS. The most accumulated rare earth elements were Ce, Nd, La, and Y (26, 15, 11 and 11 µg g−1 DM, respectively). G. sulphuraria was also cultivated under different trophic regimes, auto- and mixotrophically, with the addition of red mud extract. Growth of all cultures were comparable. The concentration of total accumulated rare earth elements was surprisingly high in mixotrophic G. sulphuraria (109 µg g−1 DM) but was tenfold lower in the autotrophic culture. Graphical Abstract: [Figure not available: see fulltext.].

Název v anglickém jazyce

Growth of the Red Alga Galdieria sulphuraria in Red Mud-Containing Medium and Accumulation of Rare Earth Elements

Popis výsledku anglicky

Red mud is a by-product of the production of alumina from bauxite ore. However, less than 2% of red mud produced is currently utilized. Red mud contains a number of residual scarce metals including rare earth elements, some at a considerable concentration, so synchronous cultures of the red microalga Galdieria sulphuraria were tested for their ability to grow in red mud-containing medium and accumulate these rare earth elements from the mud. Red mud was added to the growth medium as an acid extract (in 10% v/v HNO3). Pigment content and photosynthetic performance are indicators of physiological condition and stress levels in microalgae. Growth of the treated culture was suppressed compared to an untreated control and the content of chlorophyll a and phycocyanin decreased while carotenoids increased substantially. Photosynthetic performance, determined as Fv/Fm, was almost unaffected by the red mud treatment. The concentration of individual rare earth elements in the red mud extract and the biomass, was determined using ICP-MS. The most accumulated rare earth elements were Ce, Nd, La, and Y (26, 15, 11 and 11 µg g−1 DM, respectively). G. sulphuraria was also cultivated under different trophic regimes, auto- and mixotrophically, with the addition of red mud extract. Growth of all cultures were comparable. The concentration of total accumulated rare earth elements was surprisingly high in mixotrophic G. sulphuraria (109 µg g−1 DM) but was tenfold lower in the autotrophic culture. Graphical Abstract: [Figure not available: see fulltext.].

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Waste and Biomass Valorization

ISSN

1877-2641

e-ISSN

1877-265X

Svazek periodika

14

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

2179-2189

Kód UT WoS článku

000906098800002

EID výsledku v databázi Scopus

2-s2.0-85145167044