Effect of Biomass and Operating Condition on Biodegradation Capacity of a Mix of Pharmaceuticals (Carbamazepine, Ibuprofen, and Ciprofloxacin) in a Membrane Bioreactor

AbstractThere is no existing applicable law that regulates compounds of emerging concern (CECs), so they remain a global concern because they are easily taken up by organisms. Because of the current need, different processes have been developed capable of removing CECs. A membrane bioreactor (MBR) s...

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Bibliographic Details
Published in:Journal of environmental engineering (New York, N.Y.) N.Y.), 2020-06, Vol.146 (6)
Main Authors: Martín-Pascual, Jaime, López-López, Cristina, Fenice, Massimiliano, Calero-Díaz, Gustavo, Torres, Juan Carlos, Poyatos, José Manuel
Format: Article
Language:English
Subjects:
Biodegradation
Biofilms
Bioreactors
Carbamazepine
Ciprofloxacin
Hybrid systems
Hydraulic retention time
Ibuprofen
Membranes
Moving beds
Nonsteroidal anti-inflammatory drugs
Pharmaceuticals
Retention time
Solid suspensions
Suspended solids
Technical Papers
Temperature
Wastewater
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Summary:AbstractThere is no existing applicable law that regulates compounds of emerging concern (CECs), so they remain a global concern because they are easily taken up by organisms. Because of the current need, different processes have been developed capable of removing CECs. A membrane bioreactor (MBR) system and a hybrid moving bed biofilm reactor–membrane bioreactor (MBBR–MBR) system with a 35% filling ratio were tested on real urban wastewater under 6 and 10 h of hydraulic retention time to remove pharmaceutical compounds. The mixed-liquor suspended solids changed between 5,200 and 5,700  mg/L and the temperature varied between 12.6°C and 28.1°C simulating real conditions. The plant received a shock with the mix of pharmaceutical compounds (carbamazepine, ibuprofen, and ciprofloxacin) used to study its behavior. The removal of ibuprofen, carbamazepine, and ciprofloxacin was above 83.7%, 48.6%, and 10.6%, respectively, regardless of the process and the operative variables; these removal rates increased when the temperature increased.
ISSN:0733-9372
1943-7870
DOI:10.1061/(ASCE)EE.1943-7870.0001726