A Review of the Role of Extracellular Polymeric Substances (EPS) in Wastewater Treatment Systems.

Carbon Extracellular Polymeric Substance Matrix Polymers / chemistry Sewage / chemistry Waste Disposal, Fluid / methods Wastewater / chemistry Water Purification / methods
biological characteristics contaminant removal extracellular polymeric substances microbial aggregation sludge properties wastewater treatment

Journal

International journal of environmental research and public health
ISSN: 1660-4601
Titre abrégé: Int J Environ Res Public Health
Pays: Switzerland
ID NLM: 101238455

Informations de publication

Date de publication:
26 09 2022
Historique:
received: 30 07 2022
revised: 18 09 2022
accepted: 21 09 2022
entrez: 14 10 2022
pubmed: 15 10 2022
medline: 18 10 2022
Statut: epublish

Résumé

A review of the characterization and functions of extracellular polymeric substances (EPS) of microbial aggregates in biological wastewater treatment systems is presented in this paper. EPS represent the complex high-molecular-weight mixture of polymers excreted by microorganisms generated from cell lysis as well as adsorbed inorganic and organic matter from wastewater. EPS exhibit a three-dimensional, gel-like, highly hydrated matrix that facilitates microbial attachment, embedding, and immobilization. EPS play multiple roles in containments removal, and the main components of EPS crucially influence the properties of microbial aggregates, such as adsorption ability, stability, and formation capacity. Moreover, EPS are important to sludge bioflocculation, settleability, and dewatering properties and could be used as carbon and energy sources in wastewater treatment. However, due to the complex structure of EPS, related knowledge is incomplete, and further research is necessary to understand fully the precise roles in biological treatment processes.

Identifiants

DOI: 10.3390/ijerph191912191 PMID: 36231490 PMC: PMC9566195
pubmed: 36231490
pii: ijerph191912191
doi: 10.3390/ijerph191912191
pmc: PMC9566195
pii:
doi:

Substances chimiques

Polymers 0
Sewage 0
Waste Water 0
Carbon 7440-44-0

Types de publication

Journal Article Review Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

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Auteurs

Lei Huang (L)

Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing 400715, China.
Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing 400716, China.
ORCID: 0000-0002-7797-5434

Yinie Jin (Y)

Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing 400715, China.

Danheng Zhou (D)

Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing 400715, China.

Linxin Liu (L)

Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing 400715, China.

Shikun Huang (S)

Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing 400715, China.

Yaqi Zhao (Y)

Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing 400715, China.

Yucheng Chen (Y)

Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment (Ministry of Education), College of Resources and Environment, Southwest University, Chongqing 400715, China.
Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing 400716, China.

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Classifications MeSH

questionsmedicales.fr › Produits chimiques inorganiques › Éléments › Carbone › A Review of the Role of Extracellular...
questionsmedicales.fr › Phénomènes microbiologiques › Biofilms › Matrice de substances polymériques extracellulaires › A Review of the Role of Extracellular...
questionsmedicales.fr › Technologie, industrie et agriculture › Produits manufacturés › Matériaux biomédicaux et dentaires › Polymères › A Review of the Role of Extracellular...
questionsmedicales.fr › Mélanges complexes › Eaux d'égout › A Review of the Role of Extracellular...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Amélioration du niveau sanitaire › Génie sanitaire › Gestion des déchets › Élimination des déchets › Élimination des déchets liquides › A Review of the Role of Extracellular...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Pollution de l'environnement › Déchets › Eaux usées › A Review of the Role of Extracellular...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Amélioration du niveau sanitaire › Génie sanitaire › Gestion des déchets › Purification de l'eau › A Review of the Role of Extracellular...