Analysis of sulfamethoxazole and trimethoprim adsorption on sewage sludge and fish waste derived adsorbents

被引：64
作者：
Nielsen, Lilja [1 ]
Bandosz, Teresa J. [2 ]
机构：
[1] CUNY, Grad Ctr, Dept Earth & Environm Sci, New York, NY 10016 USA
[2] CUNY City Coll, Dept Chem, New York, NY 10031 USA
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2016年 / 220卷
关键词：
Sewage sludge; Fish waste; Adsorption; Pharmaceuticals; Surface chemistry; PERSONAL CARE PRODUCTS; ACTIVATED CARBON; DRINKING-WATER; SURFACE-CHEMISTRY; AQUEOUS-SOLUTION; REMOVAL; PHARMACEUTICALS; ANTIBIOTICS; CARBAMAZEPINE; CONTAMINANTS;
D O I：
10.1016/j.micromeso.2015.08.025
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Sewage sludge, fish waste, and mixtures of the two were pyrolized at 650 and 950 degrees C in order to convert them into stable adsorbents. To test their performance in the removal of pharmaceuticals from water, sulfamethoxazole (SMX) and trimethoprim (TMP) were chosen as model adsorbates. Adsorption isotherms were measured in batch adsorption tests at room temperature. The adsorbents prepared at 950 degrees C were more effective than those obtained at 650 degrees C. Even though both pharmaceuticals were adsorbed in the highest amount on the material composed of pyrolized fish waste, for TMP removal the composite obtained from 90% sewage sludge and 10% fish waste was equally effective. To elucidate the adsorption mechanism, detailed surface analyses by TA-MS, XRD and potentiometric titration were carried out. Favorable surface chemistry seems to be the factor governing the performance of these adsorbents as media for the pharmaceuticals' removal from an aqueous phase. The main adsorption mechanism is based on chelation, acid-base interactions and polar interactions with the inorganic phase. (C) 2015 Elsevier Inc. All rights reserved.
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收藏
页码：58 / 72
页数：15
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