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dibutyl phthalate adsorption characteristics using three common substrates in aqueous solutions

Frontiers of Environmental Science & Engineering 2020年第2期14卷 139-149页

作者： Tiancui Li Yaocheng Fan Deshou Cun Yanran Dai Wei Liang State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China University of Chinese Academy of Sciences Beijing 100039China

In recent years,the presence and adverse impacts of phthalic acid esters m aquatic environments have gained increasing *** work investigated the adsorption behavior of a typical phthalic acid ester,dibutyl phthalate(DBP),onto steel slag,gravel,and shell sand(substrates commonly used in constructed wetlands).The influence of dissolved organic matter(DOM)on DBP adsorption was investigated using humic acid as a proxy for *** results demonstrated that the adsorption of DBP to three substrates reached equilibrium within 96 h,and the adsorption kinetics were well fitted by a pseudo-second-order *** DBP adsorption isotherms were best fitted by the Langmuir adsorption *** DBP adsorption capacity decreased in the order of steel slag>gravel>sheII sand,with values of 656 mg/kg,598 mg/kg,and 6.62 mg/kg at 25°C,*** adsorbed to the surface of all substrates in a monolayer via an endothermic *** DBP adsorption capacities of steel slag and gravel decreased as the DOM content *** DBP adsorption mechanisms to steel slag and gravel mainly involved the surface coordination of DBP with-OH or-COOH groups and electrostatic *** results of this work suggest that steel slag and gravel may be ideal substrates for use in constructed wetlands to treat wastewater polluted with DBP.

关键词： Adsorption dibutyl phthalate(DBP) Dissolved organic matter Substrates

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Presence of phthalates in gastrointestinal medications: Is there a hidden danger?

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World Journal of Gastroenterology 2013年第41期19卷 7042-7047页

作者： Zane R Gallinger Geoffrey C Nguyen Mount Sinai Hospital Centre for Inflammatory Bowel Disease University of TorontoTorontoOntarioM5G 1X5Canada Division of Gastroenterology Johns Hopkins University School of MedicineBaltimoreMD 21287United States

Pharmaceutical companies that produce gastrointestinal(GI)medications often utilize phthalates for their ability to localize medication *** prescribed GI medications that may utilize phthalates are 5-Aminosalicylates,proton pump inhibitors,and pancreatic *** understanding of the cumulative health effects of phthalates from medications remains unclear,and there is increasing evidence that phthalates are not *** studies in animals have shown that phthalates,specifically dibutyl phthalate and Di-(2-ethyl-hexyl)phthalate,have the potential to alter and/or inhibit reproductive biology and in utero *** the lack of definitive human data,many cohort and cross-sectional studies demonstrate concerning associations between phthalates and poor health status,specifically developmental *** studies and studies with larger sample sizes are required to determine whether phthalates actually cause negative health *** is also important that physicians regularly review and discuss with patients the medicinal ingredients in their medications and supplements,specifically in pregnant woman with inflammatory bowel disease.

关键词： Phthalates dibutyl phthalate 5-Aminosalicylates Medications Development Pregnancy

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比较三种催化剂催化臭氧氧化法去除水中DBP

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广州化工 2015年第6期43卷 85-87页

作者：崔晨晨上海理工大学环境与建筑学院上海200093

DBP(邻苯二甲酸二丁酯)是一种难以自然降解的内分泌干扰物,广泛分布在环境中对生物和人体造成了危害。通过研究三种不同的催化剂(Fe/MCM-41,Fe/SBA-15,Fe/AC)对催化臭氧氧化法去除水中DBP效果的影响,选择出了去除效果最理想的催化剂Fe/... 详细信息

DBP(邻苯二甲酸二丁酯)是一种难以自然降解的内分泌干扰物,广泛分布在环境中对生物和人体造成了危害。通过研究三种不同的催化剂(Fe/MCM-41,Fe/SBA-15,Fe/AC)对催化臭氧氧化法去除水中DBP效果的影响,选择出了去除效果最理想的催化剂Fe/AC,并选用Fe/AC研究了催化剂投加量不同对臭氧催化活性影响。结果表明随着催化剂投加量的增加,其吸附效果加强并逐渐掩盖了催化效果,吸附性也会逐渐达到饱和,高剂量投加催化剂不仅导致溶液浑浊,还会造成经济浪费,实际应用中并不可取。

关键词： DBP(邻苯二甲酸二丁酯) 多相催化臭氧氧化水处理 DBP ( dibutyl phthalate)

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