Assessing antibiotic resistance of microorganisms in sanitary sewage
The release of antimicrobial substances into surface waters is of growing concern due to direct toxic effects on all trophic levels and the promotion of antibiotic resistance through sub-inhibitory concentration levels. This study showcases (1) the variation of antibiotics in sanitary sewage depending on different timescales and (2) a method to assess the antibiotic resistance based on an inhibition test. The test is based on the measurement of the oxygen uptake rate (OUR) in wastewater samples with increasing concentrations of the selected antibiotic agents. The following antibiotics were analysed in the present study: clarithromycin (CLA) was selected due to its high toxicity to many microorganisms (low EC50), ciprofloxacin (CIP) which is used to generally fight all bacteria concerning interstitial infections and doxycyclin (DOX) having a broad spectrum efficacy. Results show that CLA inhibited the OUR by approximately 50% at a concentration of about 10 mg L−1, because Gram-negative bacteria such as
Related articles
-
5 signs to know if you are buying manhole step irons according to the European Norm (EN-13101)
Sewage inspection chambers, manholes, reservoirs, sewage networks, electrical chambers, telecom chambers, service galleries … Manhole step irons or manhole ladders can be placed in a ...
-
Manufacturers of the only manhole step that complies with the Law of Prevention of Labor Risks
Not only 30 years of experience in the construction sector and security equipment endorse us, but also our clients, who trust in the quality, service and proximity that IVERNA provides them. We are ...
-
Hydroman™ THY300 Dirillo Reservoir Hydraulic Dredging Pump
Hydroman™ THY300 Dirillo Reservoir Hydraulic Dredging Pump is kind of electrical and mechanical hydraulic submersible sand suction pump. Hydraulic slurry pump is equipped with two or three ...
-
Hospital Wastewater Treatment Process
1. The characteristics of hospital sewage Hospital waste water contains some special pollutants, such as drugs, disinfectants, diagnostic agents, detergents, and a large number of pathogenic ...
Customer comments
No comments were found for Assessing antibiotic resistance of microorganisms in sanitary sewage. Be the first to comment!