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http://dx.doi.org/10.11001/jksww.2012.26.3.373

A study on the aquatic eco-risk assessment of antibiotics treated by radiation  

Kang, Seon-Hong (광운대학교 환경공학과)
Chang, Jae-Goo (광운대학교 환경공학과)
Ka, Soon-Kyu (한국환경산업기술원)
Kim, Hyun-Young (광주과학기술원)
Kim, Sang-Don (광주과학기술원)
Lee, Myun-Joo (한국원자력연구원)
Publication Information
Journal of Korean Society of Water and Wastewater / v.26, no.3, 2012 , pp. 373-381 More about this Journal
Abstract
Antibiotics have been issued recently in water environments because of potential impacts on ecosystem and public health. This study was aimed to investigating the degradation of antibiotics such as tetracycline, lincomycin, sulfamethazine and cephradine using gamma ray irradiation. And the toxicity before and after irradiation on antibiotics was tested in order to examine the aquatic eco-risk assessment by aquatic organisms. In addition, comparing tests on toxicity for gamma ray and UV irradiated antibiotics was conducted. Four different antibiotics were prepared by concentration of 30 mg/L with demi-water respectively. The absorption dose of gamma ray was ranged from 0.2 to 2 kGy. The concentration of four antibiotics was gradually decreased corresponding to the increase of the absorption dose. A method for toxicity assessment using Pseudokirchneriella subcapitata was evaluated to the most acceptable compared with methods by Daphnia magna and Microtox$^{(R)}$ in terms of sensibility. It showed that the reduction of toxicity on antibiotics treated by gamma ray was superior comparing to the test results obtained from UV treatment. By-products from antibiotics treated by gamma ray were easily decomposed by microorganism and their toxicity was also evaluated to low.
Keywords
Antibiotics; Gamma ray irradiation; Decomposition; Toxicity; Eco-system;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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