Understanding the mechanism of denitrifying phosphorus removal from the perspective of intracellular carbon source and extracellular polymeric substances characteristics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F22%3A91523" target="_blank" >RIV/60460709:41330/22:91523 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0959652622027044" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0959652622027044</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jclepro.2022.133115" target="_blank" >10.1016/j.jclepro.2022.133115</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Understanding the mechanism of denitrifying phosphorus removal from the perspective of intracellular carbon source and extracellular polymeric substances characteristics

Popis výsledku v původním jazyce

Denitrifying phosphorus removal (DPR) is a novel approach for denitrification and phosphorus (P) adsorption simultaneously under an anoxic condition. A well-running DPR system was used in this study to investigate the DPR mechanism based on the changes in intracellular carbon sources and extracellular polymeric substances (EPS) characteristics. In the anaerobic stage, the intracellular carbon source and EPS characteristics test results showed that Poly-beta-hydroxyalkanoates (PHA) increased by 1,75 +- 0,58 mmol C/L, which was related to the utilization of proteins slime EPS (S-EPS). Moreover, tyrosine-like substances in S-EPS were mainly used for the PHA synthesis by parallel factor analysis (PARAFAC) and correlation analysis. In addition, concentrations of K+, Mg2+ and Ca2+ in EPS were changed in different stratified EPS. EPS was an extracellular phosphorus reservoir for DPR activated sludge. In the anoxic stage, K+ and Mg2+ in the matrix had a linear relationship with P, but Ca2+ accumulated in TB-

Název v anglickém jazyce

Understanding the mechanism of denitrifying phosphorus removal from the perspective of intracellular carbon source and extracellular polymeric substances characteristics

Popis výsledku anglicky

Denitrifying phosphorus removal (DPR) is a novel approach for denitrification and phosphorus (P) adsorption simultaneously under an anoxic condition. A well-running DPR system was used in this study to investigate the DPR mechanism based on the changes in intracellular carbon sources and extracellular polymeric substances (EPS) characteristics. In the anaerobic stage, the intracellular carbon source and EPS characteristics test results showed that Poly-beta-hydroxyalkanoates (PHA) increased by 1,75 +- 0,58 mmol C/L, which was related to the utilization of proteins slime EPS (S-EPS). Moreover, tyrosine-like substances in S-EPS were mainly used for the PHA synthesis by parallel factor analysis (PARAFAC) and correlation analysis. In addition, concentrations of K+, Mg2+ and Ca2+ in EPS were changed in different stratified EPS. EPS was an extracellular phosphorus reservoir for DPR activated sludge. In the anoxic stage, K+ and Mg2+ in the matrix had a linear relationship with P, but Ca2+ accumulated in TB-

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

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF CLEANER PRODUCTION

ISSN

0959-6526

e-ISSN

1879-1786

Svazek periodika

367

Číslo periodika v rámci svazku

133115

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000835946000003

EID výsledku v databázi Scopus

2-s2.0-85134432702