Conference proceedings

Displaying 21 - 30 of 62 in CEST2025 (remove filter), 1. WATER AND WASTEWATER TREATMENT AND REUSE (remove filter)

CEST Proceedings are published under the ISSN 2944-9820.

Quaternary treatments in the upgrading of wastewater treatment plants: micropollutant removal and operation reliability

(Corresponding) Verlicchi P., Grillini V., Galletti A.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

The recent revised Urban Wastewater Treatment Directive (UWWTD) requires the implementation of quaternary treatments (QT) for large wastewater treatment plants (WWTPs) and for small ones placed in risk areas in order to reduce micropollutants (MPs) content. The current study compares the operation...Read more

Keywords:

micropollutants, operation reliability, quaternary treatment, removal efficiency, risk assessment.

DOI:

https://doi.org/10.30955/gnc2025.00017

Conference:

CEST2025

Paper ID:

cest2025_00017

The role of methylparaben as an environmental contaminant in enhancing the pathogenicity of drinking water bacteria

(Corresponding) Pereira A., Gomes I., Simões M.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Parabens, commonly used as preservatives in personal care products, can affect drinking water (DW) environmental microbial communities, posing an emerging global concern for public health. This study examines the impact of MP at 15 µg/L on the virulence of Acinetobacter calcoaceticus and...Read more

Keywords:

bacterial virulence, biofilms, internalization, invasion, methylparaben, outer membrane vesicles

DOI:

https://doi.org/10.30955/gnc2025.00019

Conference:

CEST2025

Paper ID:

cest2025_00019

PhotoBioValue project: Linking N:P Ratios and Nitrogen Sources to Microalgae-Based Wastewater Bioremediation and Biomass Valorisation

(Corresponding) Sousa S., Machado C., Esteves A., Salgado E., Dias J., Vilaça J., Pires J.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Microalgae-based systems offer potential for wastewater bioremediation by extracting nutrients while producing biomass for various uses. However, variations in wastewater properties, particularly the source of nitrogen and phosphorus, their concentration, and the N:P ratio, impact treatment...Read more

Keywords:

Biomass composition; Chlorella; Nitrogen to phosphorus ratio; Nutrient removal; Wastewater treatment.

DOI:

https://doi.org/10.30955/gnc2025.00038

Conference:

CEST2025

Paper ID:

cest2025_00038

PhotoBioValue project: Microalgae-bacteria consortium for the bioremediation of urban wastewater in pilot-scale photobioreactors

(Corresponding) Salgado E., Ribeirinho-Soares S., Sousa S., Gonçalves A., Ratola N., Pires J.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Two innovative pilot-scale channel photobioreactors (PBRs) were used to culture a microalgae-bacteria consortium in primary urban wastewater. The abundance of total heterotrophs and faecal coliforms, and the concentrations of nitrogen, phosphorus and seven volatile methylsiloxanes (VMSs) were...Read more

Keywords:

contaminants of emerging concern; photobioreactor; siloxanes; urban wastewater; wastewater treatment.

DOI:

https://doi.org/10.30955/gnc2025.00105

Conference:

CEST2025

Paper ID:

cest2025_00105

Metagenomic analysis of urban wastewater resistome and mobilome: Implications for Reclaimed Water Safety in Agriculture.

(Corresponding) Subirats J., Brown L., Marizzi A.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

The reuse of reclaimed wastewater for agricultural irrigation is a promising solution in regions experiencing water scarcity, yet it raises concerns about the persistence of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs). This study employed metagenomic analyses to...Read more

Keywords:

Reclaimed wastewater, antibiotic resistance, Metagenomics

DOI:

https://doi.org/10.30955/gnc2025.00112

Conference:

CEST2025

Paper ID:

cest2025_00112

Testing adsorption properties of natural zeolites for nutrients in wastewater

(Corresponding) Ravina M., Marotta E., Zanetti M.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Low-cost and efficient removal of nutrients in decentralized wastewater treatment plants is still challenging. The installation of supplementary adsorption systems may, in some cases, be appropriate. This work focused on two types of untreated natural zeolites, clinoptilolite and chabasite, with...Read more

Keywords:

Wastewater treatment, adsorption, ammonium, zeolites.

DOI:

https://doi.org/10.30955/gnc2025.00132

Conference:

CEST2025

Paper ID:

cest2025_00132

Treatment of High-Strength Domestic Wastewater in Anaerobic, Aerobic and Anoxic Fed-Batch Process System

(Corresponding) Rollon A., Lingating R., Pimentel J., Areo H., Ibias K., Mamugay R., Dela Cruz I.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

For treatment of high-strength domestic wastewater, this study explores a fed-batch bioprocess system consisting of anaerobic (AD), aerobic (AER) and anoxic (ANX) processes in this order and each run at 24 h hydraulic retention time (HRT) and 0.8 g COD/L/d in the first bioreactor. The largest COD...Read more

Keywords:

ammonia, biogas, biological, methane, nitrate

DOI:

https://doi.org/10.30955/gnc2025.00135

Conference:

CEST2025

Paper ID:

cest2025_00135

Novel Heterostructured Holey Graphene-NiTiO3/TiO2 Nanocomposite Enabled Photocatalytic Mixed Matrix Membranes for Effective Antibiotics Removal

Aboukhater A., (Corresponding) Kumar M., (Corresponding) Hasan S.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Antibiotics are widely used in healthcare, agriculture, and animal husbandry, contributing to their increased presence in water sources through wastewater, agricultural runoff, and improper disposal. This leads to antibiotic-resistant bacteria and poses risks to both ecosystems and human health...Read more

Keywords:

HGN, heterostructured HGN-NiTiO3/TiO2; photodegradation, antibiotic removal, self-cleaning membranes

DOI:

https://doi.org/10.30955/gnc2025.00153

Conference:

CEST2025

Paper ID:

cest2025_00153

Application of Cell Immobilization in the Batch Activated Sludge Treatment of Domestic and Poultry Wastewater Using Carbonized Coconut Shell and Carbonized Rice Hull

(Corresponding) Lingating R., Rollon A.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Domestic wastewater (DWW) and poultry wastewater (PWW) are some of the primary sources of pollution that affect receiving surface and marine waters, potentially causing eutrophication and other environmental concerns. This study aimed to evaluate the effect of cell immobilization in the performance...Read more

Keywords:

biological, wastewater treatment, domestic wastewater, poultry wastewater, cell immobilization, carbonized coconut shell, carbonized rice hull

DOI:

https://doi.org/10.30955/gnc2025.00161

Conference:

CEST2025

Paper ID:

cest2025_00161

Revalorized Reverse Osmosis Membranes: A Sustainable Solution for Gray Water Treatment

Carrasco A., Cifuentes F., Gonzalez-Perez T., Cabezas R., Merlet G., Rozas-Galvez A., (Corresponding) Pino-Soto L.

Topic:

1. WATER AND WASTEWATER TREATMENT AND REUSE

Water scarcity has intensified global interest in wastewater reuse. Greywater, due to its lower contamination load, is a promising source for non-potable applications. This study evaluates the reuse of end-of-life reverse osmosis (RO) membranes, recovered through chemical cleaning and NaClO...Read more

Keywords:

greywater, End-of-life membrane

DOI:

https://doi.org/10.30955/gnc2025.00164

Conference:

CEST2025

Paper ID:

cest2025_00164