Health and environment
mohsen yazdani; aliasghar najafpoor; aliakbar dehghan; hosein alidadi; mahmood dankoob; Reyhane Zangi; masoume saghi; aliasghar navaei
Volume 25, Issue 1 , May and June 2018, , Pages 143-149
Abstract
Background and objectives: among the different type of antibiotics, the tetracycline occupied the 2end level of the more prevalence types in produce and use aspect worldwide and their existence in domestic wastewater will pollute our water resources. The aim of this study was to determine the performance ...
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Background and objectives: among the different type of antibiotics, the tetracycline occupied the 2end level of the more prevalence types in produce and use aspect worldwide and their existence in domestic wastewater will pollute our water resources. The aim of this study was to determine the performance of US/UV/H2O2 processes when reduction of tetracycline antibiotic from an aqueous environment was objected. Material and methods: the current experimental study use the ultrasonic bath simultaneously with ultraviolet wave and hydrogen peroxide. To detect the effect of variables include contact time(5-60 min), the antibiotic concentration (5-25 mg/l), pH(3-10), hydrogen peroxide concentration (5-20 mg/l) and the input power (90- 300 W) of instrument in process, the reactor has been sampled in different intervals and the residue concentration to be used to detect with spectrophotometer instrument in 261 nm length wave. Results: the result have been showed that the separately use of UV and US will not take a high performance with the best removal percent of 16% and 32%. Simultaneously use of US/UV/H2O2 cached a more highly reduction in tetracycline concentration and the best reduction was 83 % removal that took place in pH= 4.5, antibiotic concentration of 10 mg/I, input power of 240 W, hydrogen peroxide concentration of 20 mg/l, time equal with 50 min. Conclusion: the result have been showed that the US/UV/H2O2 process can be used as a performance process to remove the tetracycline antibiotic from an aqueous environment.