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热处理技术去除鸡粪中氟喹诺酮类抗生素及影响因素研究
doi: 10.13205/j.hjgc.201502018
STUDY ON INFLUENT FACTORS ON REMOVAL OF FLUOROQUINOLONES FROM CHICKEN FECES BY THERMAL TREATMENT TECHNOLOGY
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摘要: 为了去除鸡粪中氟喹诺酮类(FQs)抗生素(包括诺氟沙星、环丙沙星、洛美沙星、恩诺沙星),研究了温度、停留时间和含水率等因素对热处理技术去除FQs的影响。结果表明:电加热回转炉装置的热处理技术能够有效去除鸡粪中FQs类污染物,在热处理时间一定时,鸡粪中4种FQs去除率随着温度的升高而增加;在处理时间40 min,温度达190℃时,鸡粪中诺氟沙星、环丙沙星、洛美沙星、恩诺沙星去除率达到64.5%~85.1%;温度达220℃时,4种FQs去除率均高于94.1%。热处理鸡粪中FQs应控制鸡粪的含水率低于25%为宜。Abstract: This paper explored removal efficiency of four FQs ( fluoroquinolones) including norfloxacin，ciprofloxacin， lomefloxacin and enrofloxacin from chicken feces by thermal treatment technology． Influence of temperature，residence time and moisture content on removal efficiency of FQs was studied． Results showed that removal rate of the four FQs increased with a higher treatment temperature and longer time． Removal rate of FQs in chicken feces reached 64. 5% ～ 85. 1% at 190 ℃， with 40 min． At 220 ℃，removal rate of FQs reached more than 94. 1%． The removal rate of FQs by thermal desorption was not significantly changed with a range of moisture content ( 5% ～ 25%) in chicken feces．
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Key words:
- temperature /
- time /
- moisture content /
- FQs /
- thermal treatment
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