Microalgae cultivation trials in a membrane bioreactor operated in heterotrophic, mixotrophic, and phototrophic modes using ammonium-rich wastewater: The study of fouling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F24%3A00586767" target="_blank" >RIV/61388971:_____/24:00586767 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/24:43908337

Result on the web

<a href="https://iwaponline.com/wst/article/89/10/2732/102124/Microalgae-cultivation-trials-in-a-membrane" target="_blank" >https://iwaponline.com/wst/article/89/10/2732/102124/Microalgae-cultivation-trials-in-a-membrane</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2166/wst.2024.148" target="_blank" >10.2166/wst.2024.148</a>

Result language

angličtina

Original language name

Microalgae cultivation trials in a membrane bioreactor operated in heterotrophic, mixotrophic, and phototrophic modes using ammonium-rich wastewater: The study of fouling

Original language description

In this work, microalgae cultivation trials were carried out in a membrane bioreactor to investigate fouling when the cultures of Chlorellavulgaris were grown under mixotrophic, heterotrophic, and phototrophic cultivation regimes. The Chlorella cultures were cultivated in wastewater as a source of nutrients that contained a high concentration of ammonium. In mixotrophic cultivation trials, the results showed that the elevated contents of carbohydrates in the soluble microbial product and proteins in extracellular polymeric substances probably initiated membrane fouling. In this case, the highest protein content was also found in extracellular polymeric substances due to the high nitrogen removal rate. Consequently, transmembrane pressure significantly increased compared to the phototrophic and heterotrophic regimes. The data indicated that cake resistance was the main cause of fouling in all cultivations. Higher protein content in the cake layer made the membrane surface more hydrophobic, while carbohydrates had the opposite effect. Compared to a mixotrophic culture, a phototrophic culture had a larger cell size and higher hydrophobicity, leading to less membrane fouling. Based on our previous data, the highest ammonia removal rate was reached in the mixotrophic cultures, nevertheless, membrane fouling appeared to be the fundamental problem.

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

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Water Science and Technology

ISSN

0273-1223

e-ISSN

1996-9732

Volume of the periodical

89

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

2732-2745

UT code for WoS article

001214360800001

EID of the result in the Scopus database

2-s2.0-85194992008