废水中三种抗生素的工业吸水树脂处理方法
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摘要
用工业吸水树脂建立了一种水中低浓度抗生素的处理方法。以磺胺甲恶唑(SMX)、四环素(TC)和土霉素(OTC)的加标废水为研究对象,通过测定处理前后水中三种抗生素的浓度变化,计算其残留率,验证了方法的可行性并考察了浓缩效果的影响因素。结果表明,当体积减少一半时,在0.2~5.0 mg/L抗生素浓度范围内,TC、SMX和OTC的浓缩残留率分别可达(129.5±52.6)%,(72.7±1.6)%和(85.6±25.6)%;溶液的pH值和离子强度对水中不同抗生素的吸水树脂浓缩效果影响显著。工业吸水树脂可以对废水中的抗生素进行处理,且可通过优化浓缩条件改变溶液中抗生素的浓缩残留率。
Sulfamethoxazole( SMX),tetracycline( TC) and oxytetracycline( OTC) in spiked wastewater were selected as the research objects. In order to assess the validity of the treatment method and obtain optimum concentrating condition,the ratio of antibiotics concentration after industrialized water-absorbing resin treatment to its initial concentration named as residual rate was calculated. Results indicated that when the antibiotics concentration in spiked wastewater ranged from 0. 2 ~ 5. 0 mg/L,and the volume decreased to half of initial volume,the residual rates of TC,SMX and OTC in spiked wastewater reached to( 129. 5 ± 52. 6) %,( 72. 7 ± 1. 6) % and( 85. 6 ± 25. 6) %,respectively. The residual rate of different antibiotics in spiked wastewater was significant affected by pH value and ionic strength. The antibiotics in spiked wastewater could be concentrated by industrialized water-absorbing resin,and concentrating efficiency could be adjusted by the concentrating conditions.
Sulfamethoxazole( SMX),tetracycline( TC) and oxytetracycline( OTC) in spiked wastewater were selected as the research objects. In order to assess the validity of the treatment method and obtain optimum concentrating condition,the ratio of antibiotics concentration after industrialized water-absorbing resin treatment to its initial concentration named as residual rate was calculated. Results indicated that when the antibiotics concentration in spiked wastewater ranged from 0. 2 ~ 5. 0 mg/L,and the volume decreased to half of initial volume,the residual rates of TC,SMX and OTC in spiked wastewater reached to( 129. 5 ± 52. 6) %,( 72. 7 ± 1. 6) % and( 85. 6 ± 25. 6) %,respectively. The residual rate of different antibiotics in spiked wastewater was significant affected by pH value and ionic strength. The antibiotics in spiked wastewater could be concentrated by industrialized water-absorbing resin,and concentrating efficiency could be adjusted by the concentrating conditions.
引文
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[2]王凯军,秦人伟.发酵工业废水处理[M].北京:化学工业出版社,2000.
[3]张红,张昱,任立人,等.基于红霉素效价当量的不同抗生素生产废水残留效价的测定[J].环境工程学报,2016,10(9):4649-4656.
[4]Roman H,Thomas H,Klaus H,et al.Occurrence of antibiotics in the aquatic environment[J].The Science of the Total Environment,1999,225(1/2):109-118.
[5]Deng Wenjing,Li Na,Zheng Hailong,et al.Occurrence and risk assessment of antibiotics in river water in Hong Kong[J].Ecotoxicology and Environment Safety,2016,125:121-127.
[6]梁惜梅,施震,黄小平.珠江口典型水产养殖区抗生素的污染特征[J].生态环境学报,2013,22(2):304-310.
[7]葛林科,张思玉,陈景文,等.抗生素在水环境中的光化学行为[J].中国科学,2010,40(2):124-135.
[8]隋倩雯,张俊亚,魏源送,等.畜禽养殖废水生物处理与农田利用过程抗生素抗性基因的转归特征研究进展[J].环境科学学报,2016,36(1):16-26.
[9]Wang Hexing,Wang Na,Wang Bin,et al.Antibiotics detected in urines and adipogenesis in school children[J].Environment International,2016,89/90:204-211.
[10]陈功,周玲玲,戴晓虎,等.城市污水处理厂节能降耗途径[J].水处理技术,2012,38(4):12-15.
[11]Paul Eisenhardt,G David Waltrip.Improving waste water treatment plant operation efficiency and effectiveness[J].Water Environment Research Foundation,1999,30(2):628-634.
[12]罗玉,黄斌,金玉,等.污水中抗生素的处理方法研究进展[J].化工进展,2014,33(9):2471-2477.
[13]唐晓璐.高吸水树脂的发展及应用[J].山东化工,2017,46(14):55-56,58.
[14]李婧,曹海艳,刘凯艳,等.水中微量抗生素的吸水树脂浓缩方法[J].应用化工,2017,46(6):1218-1221.