Removal of micropollutants in domestic wastewater by expanded granular sludge bed membrane bioreactor

Faria, Clara V.; Ricci, Bárbara C.; Silva, Ana F.R.; Amaral, Míriam Cristina Santos; Fonseca, Fabiana Valéria da

doi:10.1016/j.psep.2020.01.033

Cited by 40 publications

(9 citation statements)

References 43 publications

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“…The granular sludge was used to inoculate the granular sludge bioreactor (EGSB type) to evaluate the efficiency of removing pharmaceutical compounds. Among the pharmaceuticals evaluated, betamethasone, fenofibrate, and prednisone were not detected in the reactor effluent, being biodegraded or adsorbed (Faria et al 2020) and, therefore, effectively removed.…”

Section: Pharmaceutical Removalmentioning

confidence: 96%

“…The micrOTOF-QII mass spectrometer (Bruker) with an electrospray ionization source (ESI) was used. The method used is detailed in Faria et al (2020).…”

Section: Pharmaceutical Identification and Quantificationmentioning

confidence: 99%

“…The reactor had a volume of 2.72 L, 1.5 m high, and an inner diameter of 0.06 m. The operation was conducted under mesophilic conditions (25+4 °C), and the upflow velocity was 3.8 m h À1 . The hydraulic retention time (HRT) was 13.51 h. More information about the reactor can be found in Faria et al (2020). The next 50 days after inoculation, the reactor was fed with synthetic sewage to promote the microorganisms' adaptation.…”

Section: Removal Of Pharmaceuticals By Granular Sludge Bioreactormentioning

confidence: 99%

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Effects of pharmaceuticals compounds and calcium on granulation, microbiology, and performance of anaerobic granular sludge systems

Faria

Costa

Jorge

et al. 2022

Water Science and Technology

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Granular sludge is a promising biotechnology to treat sewage contaminated with pharmaceuticals due to its increased toxicity resistance. In this context, this study evaluated the potential of Ca2+ as a granulation precursor and how pharmaceuticals compounds (Loratadine, Prednisone, Fluconazole, Fenofibrate, Betamethasone, 17α-Ethinyl estradiol, and Ketoprofen) affect granulation. Continuous and intermittent dosages of Ca2+ in the presence and absence of pharmaceuticals were evaluated. The results showed that intermittent addition of Ca2+ reduces the time for anaerobic sludge granulation, and pharmaceuticals presence did not impair granulation. 10% of the granules presented mean diameters greater than 2.11 mm within 93 days with intermittent Ca2+ dosage in the pharmaceuticals’ presence. In contrast, no granules higher than 2.0 mm were observed with no precursor addition. The pharmaceuticals toxicity may have created a stress condition for the microbial community, contributing to more EPS production and a greater potential for granulation. It was also verified that pharmaceuticals’ presence did not decrease organic matter, total alkalinity, and volatile fatty acids removals. The 16S rRNA gene analysis revealed taxa resistance to recalcitrant compounds when pharmaceuticals were added. Besides, the efficiency of a granular sludge bioreactor (EGSB) was evaluated for pharmaceuticals removal, and Betamethasone, Fenofibrate, and Prednisone were effectively removed.

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Section: Pharmaceutical Removalmentioning

confidence: 96%

“…The micrOTOF-QII mass spectrometer (Bruker) with an electrospray ionization source (ESI) was used. The method used is detailed in Faria et al (2020).…”

Section: Pharmaceutical Identification and Quantificationmentioning

confidence: 99%

Section: Removal Of Pharmaceuticals By Granular Sludge Bioreactormentioning

confidence: 99%

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Effects of pharmaceuticals compounds and calcium on granulation, microbiology, and performance of anaerobic granular sludge systems

Faria

Costa

Jorge

et al. 2022

Water Science and Technology

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“…3 (Faria et al 2020;Lim et al 2019). The BOD in permeate obtained below 30 mg/L due to the treatment, with a removal efficiency of 94.24%.…”

Section: Cod and Bod Removalmentioning

confidence: 97%

“…Since the permeate obtained through the membrane is related to the standard aeration flow rate, it is one of the most important factors to be considered in the membrane bioreactor system (Fu et al 2012). Additionally, the aeration flow rate not only maintains the wastewater suspended but also reduces the size of the particles and increases dispersion due to shear force (Faria et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Domestic wastewater treatment by membrane bioreactor system and optimization using response surface methodology

Sonawane

Murthy

2021

Int. J. Environ. Sci. Technol.

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One of the most widespread problems afflicting people throughout the world is adequate access to clean water. Problems with water are expected to grow worse in the coming decades, with water scarcity occurring globally, even in regions currently considered water-rich. Research on the effects of temperature, transmembrane pressure (TMP), and aeration rate on the quality of effluent is of great significance in the case of membrane bioreactor. By means of the box-Behnken design (BBD) response surface methodology experiments; for the experimental investigation, the three factors are selected for optimization like the temperature is optimized in the range of 27.6-37.4 °C, transmembrane pressure is 35-63 mm Hg, and aeration rate is optimized in the range of 75-90 L/min and regression models are established. The optimal control parameters of temperature, TMP, and aeration rate are found utilizing the BBD optimizer. The removal mechanism of pollutants is discussed, and GC-MS analysis of effluent of the MBR system is also reported. The results show that the aeration flow rate affected effluent quality more significantly compared to temperature and TMP. When the aeration flow rate is 90 L/min, the temperature is 37.4 °C, and TMP is 35 mm Hg, the obtained COD, BOD, TKN, and TP values achieve the standard quality governed by the Central Pollution Control Board (CPCB) of India.

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Fate and Transport of Microconstituents in Wastewater Treatment Plants

Yang

Huang

Chen

et al. 2023

Microconstituents in the Environment

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Removal of micropollutants in domestic wastewater by expanded granular sludge bed membrane bioreactor

Cited by 40 publications

References 43 publications

Effects of pharmaceuticals compounds and calcium on granulation, microbiology, and performance of anaerobic granular sludge systems

Effects of pharmaceuticals compounds and calcium on granulation, microbiology, and performance of anaerobic granular sludge systems

Domestic wastewater treatment by membrane bioreactor system and optimization using response surface methodology

Fate and Transport of Microconstituents in Wastewater Treatment Plants

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