Efficacy of integrated ultraviolet ultrasonic technologies in the removal of erythromycin- and quinolone-resistant Escherichia coli from domestic wastewater through a laboratory-based experiment
| Autor: | Xiaoqin Zhou, Owassa Dza Rebecca Annisha, Oscar Omondi Donde, Ngomah Madgil Don Stenay Junior, Zifu Li |
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| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Chromatography medicine.drug_class Chemistry 030106 microbiology Public Health Environmental and Occupational Health Erythromycin 010501 environmental sciences Development Quinolone medicine.disease_cause 01 natural sciences Pollution 03 medical and health sciences Wastewater medicine Ultrasonic sensor Waste Management and Disposal Escherichia coli Ultraviolet 0105 earth and related environmental sciences Water Science and Technology medicine.drug |
| Zdroj: | Journal of Water, Sanitation and Hygiene for Development. 9:571-580 |
| ISSN: | 2408-9362 2043-9083 |
| DOI: | 10.2166/washdev.2019.021 |
| Popis: | Bacterial resistance to antibiotics has become a common occurrence especially in areas where antibiotic drugs are widely used. Moreover, the potential effect of antibiotic pollution and the presence of antibiotic-resistant genes (ARGs) on the composition of bacterial communities in the ecosystems continue to degrade the quality of most ecosystems. Despite the use of ultraviolet (UV) radiation and ultrasound (US) technologies in wastewater purification, little is known on their application in the elimination of fecal pathogenic microorganisms such as Escherichia coli. Moreover, their individual and combined potential in the elimination of erythromycin- and quinolone-resistant E. coli is a topic that still requires proper understanding. Therefore, this study was aimed at evaluating the individual and combined/integrative potential of UV radiation and ultrasonic technologies in the removal of erythromycin- and quinolone-resistant E. coli from domestic effluents using a laboratory experimental-based set-up. The results showed that UV radiation experiment was able to significantly eliminate erythromycin- and quinolone-resistant E. coli from the water to a value of 2 log units. Additionally, US technology was equally able to significantly reduce both the erythromycin- and quinolone-resistant E. coli to 2 log units. However, on combining the two technologies, there was further reduction to 1 log unit, hence, pointing to the need for adopting the integrative approach in water purification for increased wastewater purification efficiencies and improved ecosystem and human health. |
| Databáze: | OpenAIRE |
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