Comparative study of emerging micropollutants removal by aerobic activated sludge of large laboratory-scale membrane bioreactors and sequencing batch reactors under low-temperature conditions

Kruglova, Antonina; Kråkström, Matilda; Riska, Mats; Mikola, Anna; Rantanen, Pirjo; Vahala, Riku; Krönberg, Leif

doi:10.1016/j.biortech.2016.04.037

Cited by 56 publications

(17 citation statements)

References 22 publications

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“…In addition, OMPs concentrations are uncertain in sewage and conventional wastewater treatment facilities are unable to efficiently remove OMPs to the extent for reuse applications [2]. For example, commonly detected OMPs such as ibuprofen showed biodegradable removal of 75% whereas Estrone (E1) and 17-α-Ethinyl estradiol (EE2) achieved 83% and 44% removal [41]. Furthermore, advanced OMP removal or destruction options include adsorption or ion exchange using activated carbon and ion exchange resins, ultraviolet (UV) disinfection and advanced oxidation processes (AOP) such as hydrogen peroxide oxidation, electrochemical advanced oxidation processes (EAOPs) such as Anodic oxidation (AO) and electro-Fenton (EF) [42] and photocatalytic degradation.…”

Section: Membrane Bioreactors In Organic Micropollutants Removalmentioning

confidence: 99%

Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors

et al. 2020

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The ubiquitous presence of organic micropollutants (OMPs) in the environment as a result of continuous discharge from wastewater treatment plants (WWTPs) into water matrices—even at trace concentrations (ng/L)—is of great concern, both in the public and environmental health domains. This fact essentially warrants developing and implementing energy-efficient, economical, sustainable and easy to handle technologies to meet stringent legislative requirements. Membrane-based processes—both stand-alone or integration of membrane processes—are an attractive option for the removal of OMPs because of their high reliability compared with conventional process, least chemical consumption and smaller footprint. This review summarizes recent research (mainly 2015–present) on the application of conventional aerobic and anaerobic membrane bioreactors used for the removal of organic micropollutants (OMP) from wastewater. Integration and hybridization of membrane processes with other physicochemical processes are becoming promising options for OMP removal. Recent studies on high retention membrane bioreactors (HRMBRs) such as osmotic membrane bioreactor (OMBRs) and membrane distillation bioreactors (MDBRs) are discussed. Future prospects of membrane bioreactors (MBRs) and HRMBRs for improving OMP removal from wastewater are also proposed.

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Section: Membrane Bioreactors In Organic Micropollutants Removalmentioning

confidence: 99%

Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors

et al. 2020

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“…Physical conditions (environmental or operational) can substantially steer the microbial community composition of activated sludge and therefore modulate the vulnerability of microbial community to antibiotics. In particular, low temperature significantly affects activated sludge bacterial community, slows down metabolic processes and, as consequences, decreases biological removal of pharmaceutically active compounds . At the same time, in Nordic countries, the wastewater temperature during more than 5 months of winter season is around 8 ± 1°C .…”

Section: Introductionmentioning

confidence: 99%

“…As nitrifiers are reported among the most sensitive microorganisms to both antibiotics and low‐temperature conditions, the efficient nitrogen removal in WWTPs of cold regions may be challenging under pressure of these two factors. Wastewater treatment processes operated with longer sludge retention time (SRT) such as membrane bioreactors (MBRs) were proposed as beneficial for activated sludge performance in presence of pharmaceutically active compounds at low temperatures . Furthermore, unexpectedly low concentrations of nitrifying bacteria traditionally found in aerobic activated sludge, including ammonium oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB), were found in low‐temperature adapted activated sludge in presence of pharmaceutically active compounds .…”

Section: Introductionmentioning

confidence: 99%

“…In particular, low temperature significantly affects activated sludge bacterial community, slows down metabolic processes and, as consequences, decreases biological removal of pharmaceutically active compounds. 6,7 At the same time, in Nordic countries, the wastewater temperature during more than 5 months of winter season is around 8 AE 1 C. [8][9][10] As nitrifiers are reported among the most sensitive microorganisms to both antibiotics and lowtemperature conditions, 5,11 the efficient nitrogen removal in WWTPs of cold regions may be challenging under pressure of these two factors. Wastewater treatment processes operated with longer sludge retention time (SRT) such as membrane bioreactors (MBRs) were proposed as beneficial for activated sludge performance in presence of pharmaceutically active compounds at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Effect of sulfadiazine and trimethoprim on activated sludge performance and microbial community dynamics in laboratory‐scale membrane bioreactors and sequencing batch reactors at 8°C

Kruglova

Mikola

González‐Martínez

et al. 2018

Biotechnology Progress

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The effect of antibiotics sulfadiazine and trimethoprim on activated sludge operated at 8°C was investigated. Performance and microbial communities of sequencing batch reactors (SBRs) and Membrane Bioreactors (MBRs) were compared before and after the exposure of antibiotics to the synthetic wastewater. The results revealed irreversible negative effect of these antibiotics in environmentally relevant concentrations on nitrifying microbial community of SBR activated sludge. In opposite, MBR sludge demonstrated fast adaptation and more stable performance during the antibiotics exposure. Dynamics of microbial community was greatly affected by presence of antibiotics. Bacteria from classes Betaproteobacteria and Bacteroidetes demonstrated the potential to develop antibiotic resistance in both wastewater treatment systems while Actinobacteria disappeared from all of the reactors after 60 days of antibiotics exposure. Altogether, results showed that operational parameters such as sludge retention time (SRT) and reactor configuration had great effect on microbial community composition of activated sludge and its vulnerability to antibiotics. Operation at long SRT allowed archaea, including ammonium oxidizing species (AOA) such as Nitrososphaera viennensis to grow in MBRs. AOA could have an important role in stable nitrification performance of MBR‐activated sludge as a result of tolerance of archaea to antibiotics. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2708, 2019

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“…MBRs can achieve excellent effluent qualities with respect to pathogens, suspended solids, dissolved organic carbon and nitrogen . According to Kruglova et al ., using the MBR process in wastewater treatment could enhance the removal of emerging micropollutants. One of the most important advantages over conventional technologies is the prolonged acclimatization of organisms due to long SRTs.…”

Section: Introductionmentioning

confidence: 99%

Impact of ciprofloxacin, carbamazepine and ibuprofen on a membrane bioreactor system: Kinetic study and biodegradation capacity

Calero-Díaz¹,

Monteoliva-García

Leyva‐Díaz

et al. 2017

J. Chem. Technol. Biotechnol

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BACKGROUND: This study analyzed the effects of carbamazepine, ciprofloxacin and ibuprofen on the behavior of a membrane bioreactor (MBR) system treating urban wastewater that was doped continuously with three different concentrations of this mix of pharmaceuticals under a hydraulic retention time of 6 h. RESULTS: The degradation capacity of these chemicals and the heterotrophic kinetics regarding the organic matter removal were evaluated in the control and doping cycles.CONCLUSIONS: Although the MLSS decreased drastically, these differences were not observed in the organic matter removal as the increase of cell growth rate cancelled out the increase in cell decay rate due to the chemical stress caused by the addition of pharmaceuticals, as shown by the increased organic matter degradation rate from 86.27 mgO 2 L −1 h −1 in the control cycle to values within the limits 183.97 mgO 2 L −1 h −1 and 192.88 mgO 2 L −1 h −1 in doping cycles. The degradation rates were 0.0154, 0.0152 and 0.0160 gS/(( gS in /L)*h*mgMLSS) for carbamazepine, ciprofloxacin and ibuprofen, respectively, involving removal yields higher than 71.9, 88.7 and 94.7% for carbamazepine, ciprofloxacin and ibuprofen, respectively, at the three different concentrations tested. Therefore, MBR technology can be used as a reliable process to significantly reduce this mix of pharmaceuticals without reducing its organic matter removal capacity.

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Comparative study of emerging micropollutants removal by aerobic activated sludge of large laboratory-scale membrane bioreactors and sequencing batch reactors under low-temperature conditions

Cited by 56 publications

References 22 publications

Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors

Removal of Organic Micro-Pollutants by Conventional Membrane Bioreactors and High-Retention Membrane Bioreactors

Effect of sulfadiazine and trimethoprim on activated sludge performance and microbial community dynamics in laboratory‐scale membrane bioreactors and sequencing batch reactors at 8°C

Impact of ciprofloxacin, carbamazepine and ibuprofen on a membrane bioreactor system: Kinetic study and biodegradation capacity

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