Evolution of the activated sludge process: the first 50 years

D Orhon - Journal of Chemical Technology & Biotechnology, 2015 - Wiley Online Library
The paper presents a critical overview of the first 50 years in the evolution of the activated
sludge process. Recognition of the role of aeration and microbial activity in the purification of …

Anaerobic sulfamethoxazole degradation is driven by homoacetogenesis coupled with hydrogenotrophic methanogenesis

Z Cetecioglu, B Ince, D Orhon, O Ince - Water Research, 2016 - Elsevier
In this study, microbial community dynamics were assessed in two lab-scale anaerobic
sequencing batch reactors (ASBRs). One of the reactors was fed by synthetic …

[HTML][HTML] Dynamic modeling of the activated sludge microbial growth and activity under exposure to heavy metals

K Matyja, A Wasiela, W Dobicki, P Pokorny… - Bioresource …, 2021 - Elsevier
The presence of heavy metals in the environment can lead to ecological and health
problems. The evolution of biological systems, such as activated sludge, exposed to heavy …

Chronic impact of sulfamethoxazole on the metabolic activity and composition of enriched nitrifying microbial culture

T Katipoglu-Yazan, C Merlin, MN Pons, E Ubay-Cokgor… - Water research, 2016 - Elsevier
This study investigated the chronic impact of sulfamethoxazole (SMX) on activated sludge
sustaining an enriched nitrifying biomass. For this purpose, a laboratory scale fill and draw …

Rapid nitrification using nitrifying biomass acclimated to sulfamethoxazole (SMX)

X Zhang, J Huang, S Chen, N Yan, R Liu… - Journal of …, 2023 - Elsevier
Antibiotics often are input to biological-treatment systems for domestic sewage, and they can
inhibit nitrifying bacteria and impair nitrification performance. In this work, activated sludge …

Kinetic and microbial response of activated sludge community to acute and chronic exposure to tetracycline

I Pala-Ozkok, E Ubay-Cokgor, D Jonas… - Journal of hazardous …, 2019 - Elsevier
Current study aimed to discover both kinetic and microbial response of activated sludge
biomass to continuous exposure to tetracycline, one of the most frequently detected …

Determination and evaluation of kinetic parameters of activated sludge biomass from a sludge reduction system treating real sewage by respirometry testing

A Karlikanovaite-Balikci, N Yagci - Journal of environmental management, 2019 - Elsevier
Abstract Oxic-settling-anoxic (OSA) process is one of the promising variants that produces
lower amounts of sludge and has been applied to aerobic and nutrient removal systems …

Chronic effect of erythromycin on substrate biodegradation kinetics of activated sludge

I Pala-Ozkok, D Orhon - Biochemical engineering journal, 2013 - Elsevier
This study evaluated the chronic impact of erythromycin, a macrolide antibiotic, on microbial
activities, mainly focusing on changes in process kinetics induced on substrate …

Is the chronic impact of sulfamethoxazole different for slow growing culture? The effect of culture history

G Kor-Bicakci, I Pala-Ozkok, A Ural, D Jonas… - Bioresource …, 2016 - Elsevier
The study evaluated impact of sulfamethoxazole on acetate utilization kinetics and microbial
community structure using respirometric analysis and pyrosequencing. A fill and draw …

Chronic impact of sulfamethoxazole: how does process kinetics relate to metabolic activity and composition of enriched nitrifying microbial culture?

T Katipoglu‐Yazan, E Ubay‐Cokgor… - Journal of Chemical …, 2018 - Wiley Online Library
BACKGROUND This study investigated utilization kinetics of ammonia‐nitrogen induced by
chronic sulfamethoxazole (SMX) exposure on biomass with an enriched nitrifying …