探讨了粉末活性炭对抗生素的去除效果.在对水体中30种常见抗生素污染调研的基础上,选取萘啶酸、土霉素、林可霉素3种代表性抗生素进一步分析所需粉末活性炭的投加量.研究结果表明:当污染物在1 mg/L时,粉末活性炭的投加量分别为115 mg/L(萘啶酸)、75 mg/L(土霉素)、25mg/L(林可霉素),去除率均在99％以上,并根据其他抗生素的吸附难易度,推导出在相同污染程度下粉末活性炭的投加量；当原水中出现小于1 μg/L的持续性污染时,粉末活性炭的投加量应保持在1～35 mg/L,以保证稳定高效的去除效果.%The removal effect of antibiotic by powdered activated carbon (PAC) was carried out in this paper. Based on the investigation of 30 normal antibiotics pollution, nalidixic acid, terra-mycin, and lincomycin were selected as representative antibiotics for further study. The results showed: when pollutant was 1 mg/L, PAC dosages to remove nalidixic acid, terramycin, and lincomycin were 115 mg/L, 75 mg/L, and 25 mg/L respectively, and the removal rates were above 99%; according to the difficulties of adsorption of other antibiotics, the PAC dosages for similar pollution degree were derived; when the lasting pollution was less than 1 μg/L in raw water, PAC dosage should be kept between 1 to 35 mg/L so as to keep the high-efficient and stable removal effects.
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