Simultaneous activated carbon adsorption within a membrane bioreactor for an enhanced micropollutant removal

Li, Xueqing; Hai, Faisal I.; Nghiem, Long D.

doi:10.1016/j.biortech.2010.11.070

Cited by 121 publications

(42 citation statements)

References 24 publications

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“…In a previous study (Li et al, 2011) negligible adsorption of the two studied compounds (carbamazepine and sulfamethoxazole) onto MBR sludge was demonstrated. In this study, in good agreement with the preliminary batch tests, a dramatic effect of operating DO on the removal efficiency of carbamazepine by the MBR was observed, while sulfamethoxazole removal was rather stable irrespective of the DO concentrations (Figure 2).…”

Section: Micropollutant Removalmentioning

confidence: 85%

“…A Shimadzu HPLC system (Shimadzu, Kyoto, Japan) equipped with a Supelco Drug Discovery C-18 column (with diameter, length and pore size of 4.6 mm, 150 mm, and 5µm, respectively) and a UV-Vis detector was used to measure the concentrations of the micropollutants in the feed and permeate (Li et al, 2011). The detection wavelength and column temperature were set at 280 nm and 20C, respectively.…”

Section: Methodsmentioning

confidence: 99%

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Removal of carbamazepine and sulfamethoxazole by MBR under anoxic and aerobic conditions

Hai

Price

et al. 2011

Bioresource Technology

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119

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This study reveals for the first time that near-anoxic conditions (dissolved oxygen, DO = 0.5 mg/L) can be a favourable operating regime for the removal of the persistent micropollutant carbamazepine by MBR treatment. The removal efficiencies of carbamazepine and sulfamethoxazole by an MBR were systematically examined and compared under near-anoxic (DO = 0.5 mg/L) and aerobic (DO > 2 mg/L) conditions. Preliminary batch tests confirmed that sulfamethoxazole is amenable to both aerobic and anoxic biotransformation. However, carbamazepine-a known persistent compound-showed degradation only under an anoxic environment. In good agreement with the batch tests, during near-anoxic operation, under a high loading of 750 µg/L.d, an exceptionally high removal (68±10%) of carbamazepine was achieved. In contrast, low removal efficiency (12±11%) of carbamazepine was observed during operation under aerobic conditions. On the other hand, an average removal efficiency of 65% of sulfamethoxazole was achieved irrespective of the DO concentrations.

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Section: Micropollutant Removalmentioning

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Removal of carbamazepine and sulfamethoxazole by MBR under anoxic and aerobic conditions

Hai

Price

et al. 2011

Bioresource Technology

Self Cite

119

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“…Ninety percent SMX removal (2 to 20 μg/L initial SMX) occurred at pH 5 to 7, and this decreased to 70 % as the pH increased to 9 (Tadkaew et al 2010). Without PAC addition, 64±7 % SMX was removed, while with 1 mg/L PAC, the SMX removal increased to 82±11 % (750 μg/L initial SMX); this was attributed to adsorption to the PAC (Li et al 2011). Another study demonstrated that using biogenic manganese oxides in a lab-scale MBR (30 L) removed 34 to 52 % of the SMX from the secondary effluent of a WWTP (Forrez et al 2011).…”

Section: Removal In Mbrsmentioning

confidence: 96%

Biodegradation of sulfamethoxazole: current knowledge and perspectives

Larcher

Yargeau

2012

Appl Microbiol Biotechnol

121

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Antibiotic compounds, like sulfamethoxazole (SMX), have become a concern in the aquatic environment due to the potential development of antibacterial resistances. Due to extensive consumption, excretion and disposal, SMX has been frequently detected in wastewaters and surface waters. This has led to numerous studies investigating the nature of SMX, with many researchers focusing on the biodegradation and persistence of SMX during wastewater treatment and in the environment. This review provides a summary of recent developments, outlines the discrepancies in observations and results, and demonstrates the need for further research to determine optimal biological removal strategies for SMX and other antibiotics.

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“…This statement remains an assumption as no operating settings were tested to optimize the performance of both systems at WWTP-A and WWTP-B. Other authors reported satisfactory results in the removal process of the persistent hydrophilic pharmaceuticals carbamazepine and sulfamethoxazole by simultaneous PAC adsorption within a MBR [18]. However, little information about the chemical composition and the micro/mesoporosity of therein used PAC is provided.…”

Section: Project Pac-in-mbrmentioning

confidence: 99%

Upgrading of Wastewater Treatment Plants Through the Use of Unconventional Treatment Technologies: Removal of Lidocaine, Tramadol, Venlafaxine and Their Metabolites

Rúa-Gómez

Guedez

Ania

et al. 2012

Water

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Abstract:The occurrence and removal efficiencies of the pharmaceuticals lidocaine (LDC), tramadol (TRA) and venlafaxine (VEN), and their major active metabolites monoethylglycinexylidide (MEGX), O-desmethyltramadol (ODT) and O-desmethylvenlafaxine (ODV) were studied at four wastewater treatment plants (WWTPs) equipped with activated sludge treatment technologies. In parallel to activated sludge treatment, the removal efficiency of the compounds in pilot-and full-scale projects installed at the WWTPs was investigated. Within these projects two different treatment methods were tested: adsorption onto powdered/granulated activated carbon (PAC/GAC) and ozonation. The metabolite MEGX was not detected in any sample. The concentrations of the target analytes in wastewater effluents resulting from activated sludge treatment ranged from 55 to 183 (LDC), 88 to 416 (TRA), 50 to 245 (ODT), 22 to 176 (VEN) and 77 to 520 ng L −1 (ODV). In the pilot project with subsequent treatment with PAC/GAC, the mean concentrations of the analytes were between

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Simultaneous activated carbon adsorption within a membrane bioreactor for an enhanced micropollutant removal

Cited by 121 publications

References 24 publications

Removal of carbamazepine and sulfamethoxazole by MBR under anoxic and aerobic conditions

Removal of carbamazepine and sulfamethoxazole by MBR under anoxic and aerobic conditions

Biodegradation of sulfamethoxazole: current knowledge and perspectives

Upgrading of Wastewater Treatment Plants Through the Use of Unconventional Treatment Technologies: Removal of Lidocaine, Tramadol, Venlafaxine and Their Metabolites

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