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

Result code in 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>

Alternative codes found

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

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.].

Czech name

—

Czech description

—

Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Waste and Biomass Valorization

ISSN

1877-2641

e-ISSN

1877-265X

Volume of the periodical

14

Issue of the periodical within the volume

7

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

2179-2189

UT code for WoS article

000906098800002

EID of the result in the Scopus database

2-s2.0-85145167044