Performance of aerobic granular sludge in a sequencing batch bioreactor exposed to ofloxacin, norfloxacin and ciprofloxacin

Amorim, Catarina L.; Maia, Alexandra S.; Mesquita, Raquel B. R.; Rangel, António O.S.S.; Loosdrecht, M.C.M. van; Tiritan, Maria Elizabeth; Castro, Paula M. L.

doi:10.1016/j.watres.2013.10.043

Cited by 219 publications

(66 citation statements)

References 32 publications

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“…However, under continuous feeding, the adsorption capacity gradually reduced due to saturation of granules adsorption capacity. Similar results were obtained by Amorim et al (2014) in the treatment of wastewater containing fluoroquinolones (FQs). All these studies show that the removal of pollutants was rapid in the initial stage, but gradually decreased with time until reaching an equilibrium, indicating that the maximum adsorption capacity of granules had been reached.…”

Section: Thps Removalsupporting

confidence: 72%

“…Aerobic granular sludge offers many advantages over conventional activated sludge systems, due to its high metabolic activity, excellent settling capacity, the simultaneous nitrification denitrification (SND) capacity (De Kreuk et al, 2005), and the ability to tolerate and degrade toxic organic compounds, such as phenol, antibiotics, etc. (Liu et al, 2009;Amorim et al, 2014). On account of these, aerobic granules are suited for the treatment of industrial wastewater, containing recalcitrant and xenobiotic substances.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Moreira et al (2015) observed that granular sludge is able to remove fluoxetine via adsorption phenomena. However, in these cases, if contaminants are not degraded biologically, desorption phenomena may occur, causing a significant deterioration in effluent quality (Amorim et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Cultivation of granular sludge with hypersaline oily wastewater

Corsino

Campo

Bella

et al. 2015

International Biodeterioration & Biodegradation

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a b s t r a c tThe time required to stabilise mature aerobic granules is rather variable. In addition, cultivation time and the structural characteristics of granules seem to be related to the nature of wastewater influent. Granular sludge has been used for the treatment of several industrial wastewaters, but nothing has been reported about wastewater characterized by the simultaneous presence of hydrocarbons and high chloride concentration. In this work, the authors analysed the granulation process and performance as well as the physical characteristics of aerobic granules in two Granular Sequencing Batch Airlift Reactors (GSBARs), fed with acetate-based synthetic wastewater in reactor 1 (R1) and with a mixture of real and simulated slop (R2). The results obtained in 100 days show that full granulation was achieved in both reactors. The granules in R2 developed more quickly, but they appeared slightly unstable and more susceptible to breaking. Despite high salt concentration, the efficiency of phosphorous and carbon removal was satisfactory. Low nitrification activity was observed in R1, confirming that a longer time is necessary to obtain the acclimation of autotrophic biomass in aerobic granules. In R2 the combined effect of salinity and hydrocarbons caused the inhibition of the autotrophic biomass, with the consequence that nitrification was absent. Hydrocarbons were initially removed by adsorption afterwards by biological degradation with a removal efficiency of over 90%.

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Section: Thps Removalsupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

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Cultivation of granular sludge with hypersaline oily wastewater

Corsino

Campo

Bella

et al. 2015

International Biodeterioration & Biodegradation

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“…The reason is that sorption is an important CLX removal mechanism, one that involves adsorption and absorption. In the initial stage, the aerobic granulation plays a promising role in adsorption of CLX due to porosity, high surface area, and good settling capability (Shi et al, 2011;Amorim et al, 2014). After that, CLX removal efficiency gradually decreased with desorption, adsorption, cometabolism, and degradation working together until reaching equilibrium was reached (Alvarino et al, 2014).…”

Section: Overall Performance Of the Sbarsmentioning

confidence: 99%

Characterization of the extracellular polymeric substances and microbial community of aerobic granulation sludge exposed to cefalexin

Kong

Wang

Shu

et al. 2015

International Biodeterioration & Biodegradation

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“…Water samples of the final effluent of the secondary clarifier of a WWTP located in the North of Portugal and water samples of the effluent of a laboratory-scale aerobic granular sludge sequential batch reactor (AGS-SBR), previously fed with a range of pharmaceuticals and other fluorinated compounds [40][41][42] were evaluated as matrices within the method development. Due to the absence of the most target pharmaceuticals, the synthetic effluent from the AGS-SBR was chosen for method development and validation.…”

Section: Fortified and Blank Samplesmentioning

confidence: 99%

Enantiomeric fraction evaluation of pharmaceuticals in environmental matrices by liquid chromatography-tandem mass spectrometry

Ribeiro

Santos

Maia

et al. 2014

Journal of Chromatography A

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a b s t r a c tThe interest for environmental fate assessment of chiral pharmaceuticals is increasing and enantioselective analytical methods are mandatory. This study presents an enantioselective analytical method for the quantification of seven pairs of enantiomers of pharmaceuticals and a pair of a metabolite. The selected chiral pharmaceuticals belong to three different therapeutic classes, namely selective serotonin reuptake inhibitors (venlafaxine, fluoxetine and its metabolite norfluoxetine), beta-blockers (alprenolol, bisoprolol, metoprolol, propranolol) and a beta 2 -adrenergic agonist (salbutamol). The analytical method was based on solid phase extraction followed by liquid chromatography tandem mass spectrometry with a triple quadrupole analyser. Briefly, Oasis® MCX cartridges were used to preconcentrate 250 mL of water samples and the reconstituted extracts were analysed with a Chirobiotic TM V under reversed mode. The effluent of a laboratory-scale aerobic granular sludge sequencing batch reactor (AGS-SBR) was used to validate the method. Linearity (r 2 > 0.99), selectivity and sensitivity were achieved in the range of 20-400 ng L −1 for all enantiomers, except for norfluoxetine enantiomers which range covered 30-400 ng L −1 . The method detection limits were between 0.65 and 11.5 ng L −1 and the method quantification limits were between 1.98 and 19.7 ng L −1 . The identity of all enantiomers was confirmed using two MS/MS transitions and its ion ratios, according to European Commission Decision 2002/657/EC. This method was successfully applied to evaluate effluents of wastewater treatment plants (WWTP) in Portugal. Venlafaxine and fluoxetine were quantified as non-racemic mixtures (enantiomeric fraction / 0.5). The enantioselective validated method was able to monitor chiral pharmaceuticals in WWTP effluents and has potential to assess the enantioselective biodegradation in bioreactors. Further application in environmental matrices as surface and estuarine waters can be exploited.

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Performance of aerobic granular sludge in a sequencing batch bioreactor exposed to ofloxacin, norfloxacin and ciprofloxacin

Cited by 219 publications

References 32 publications

Cultivation of granular sludge with hypersaline oily wastewater

Cultivation of granular sludge with hypersaline oily wastewater

Characterization of the extracellular polymeric substances and microbial community of aerobic granulation sludge exposed to cefalexin

Enantiomeric fraction evaluation of pharmaceuticals in environmental matrices by liquid chromatography-tandem mass spectrometry

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