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近年来养殖废水中四环素(TC)污染日趋严重，为了缓解这一现状，以阳离子表面活性剂双十二烷基二甲基溴化铵(DDAB)对凹凸棒土(ATP)进行改性，制得能高效吸附TC的材料，并对其吸附性能进行研究。实验结果表明：DDAB/ATP对TC的饱和吸附容量达437.32 mg·g-1。当模拟DDAB/ATP对地表水进行吸附时，TC去除率均在99.6%以上，满足污染水体中TC的去除要求。再生研究表明，经4次循环后，去除率仍在90%以上，表明DDAB/ATP具有良好的再生性能。
Abstract：Recently, tetracycline(TC) pollution in aquaculture wastewater is getting more and more serious.In order to alleviate this situation, attapulgite(ATP) was modified with the cationic surfactant didodecyl dimethyl ammonium bromide(DDAB) to prepare a material with high adsorption capacity for TC,and its adsorption properties were studied.The results shows that the saturated adsorption capacity of DDAB/ATP for TC reaches 437.32 mg·g-1.When DDAB/ATP is applied to the adsorption of surface water in simulation, the TC removal rate is above 99.6%,which far meets the removal requirements of TC in the actual polluted water.The regeneration experiment shows that after four cycles, the removal rate still reaches more than 90%,indicating that DDAB/ATP has good regeneration performance.
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基本信息:
DOI：10.16246/j.issn.1673-5072.2025.06.008
中图分类号:TQ424;X713;X52
引用信息:
[1]李鑫,周嫄,赵平,等.DDAB改性凹凸棒土对水体中四环素的吸附[J].西华师范大学学报(自然科学版),2025,46(06):614-622.DOI:10.16246/j.issn.1673-5072.2025.06.008.
基金信息:
国家自然科学基金项目(42267009)
2025-01-16
2025-01-16
2025-01-16