Effect of ciprofloxacin dosages on the performance of sponge membrane bioreactor treating hospital wastewater
| Autor: | Phan-Thai-Vy Nguyen, Thanh-Tin Nguyen, Xuan-Thanh Bui, Bao-Trong Dang, Quoc-Tuc Dinh, Takahiro Fujioka, Deokjin Jahng, Shiao-Shing Chen, Huu Hao Ngo, Cong-Nguyen Nguyen |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Environmental Engineering Denitrification Dose Bioengineering Wastewater 010501 environmental sciences Membrane bioreactor Waste Disposal Fluid 01 natural sciences Bioreactors Ciprofloxacin 010608 biotechnology medicine Biomass Waste Management and Disposal 0105 earth and related environmental sciences Fouling Renewable Energy Sustainability and the Environment Chemistry Membrane fouling General Medicine Permeation Pulp and paper industry Hospitals medicine.drug |
| Zdroj: | Bioresource Technology. 273:573-580 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2018.11.058 |
| Popis: | This study aimed to evaluate treatment performance and membrane fouling of a lab-scale Sponge-MBR under the added ciprofloxacin (CIP) dosages (20; 50; 100 and 200 µg L−1) treating hospital wastewater. The results showed that Sponge-MBR exhibited effective removal of COD (94–98%) during the operation period despite increment of CIP concentrations from 20 to 200 µg L−1. The applied CIP dosage of 200 µg L−1 caused an inhibition of microorganisms in sponges, i.e. significant reduction of the attached biomass and a decrease in the size of suspended flocs. Moreover, this led to deteriorating the denitrification rate to 3–12% compared to 35% at the other lower CIP dosages. Importantly, Sponge-MBR reinforced the stability of CIP removal at various added CIP dosages (permeate of below 13 µg L−1). Additionally, the fouling rate at CIP dosage of 200 µg L−1 was 30.6 times lower compared to the control condition (no added CIP dosage). |
| Databáze: | OpenAIRE |
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