Simultaneous mitigation of p-cresol and ammonium using activated carbon from avocado seed

被引：11

作者：

Zhu, Yiying ^{[1
]}

Kolar, Praveen ^{[1
]}

Shah, Sanjay B. ^{[1
]}

Cheng, Jay J. ^{[1
]}

Lim, P. K. ^{[2
]}

机构：

[1] North Carolina State Univ, Dept Biol & Agr Engn, Campus Box 7625, Raleigh, NC 27695 USA

[2] North Carolina State Univ, Dept Chem & Biomol Engn, Campus Box 7905, Raleigh, NC 27695 USA

来源：

ENVIRONMENTAL TECHNOLOGY & INNOVATION | 2018年 / 9卷

关键词：

Ammonium; p-cresol; Activated carbon; Methanesulfonic acid; Binary system; ADSORPTIVE REMOVAL; AQUEOUS-SOLUTION; SWINE MANURE; PHENOLIC-COMPOUNDS; FIXED-BED; ISOTHERM; WATER; NITROGEN; SORPTION; DYE;

D O I：

10.1016/j.eti.2017.10.006

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Avocado seed was used as a precursor to prepare an activated carbon (AAC-MA) via physiochemical activation with methanesulfonic acid. The AAC-MA was systematically tested in batch systems for the removal of p-cresol (single-solute) and p-cresol and ammonium (binary solute). It was found that the kinetic data of p-cresol adsorption conformed to a pseudo-second-order model suggesting a predominantly chemisorption process. Additionally, the equilibrium data of p-cresol adsorption in a single solute system were found to follow Redlich-Peterson isotherm. Data analysis of the binary solute studies indicated that extended Langmuir isotherm was the most suitable to describe adsorption of p-cresol and ammonium on AAC-MA. It is also observed that the presence of ammonium did not affect adsorption of p-cresol. On the other hand, presence of p-cresol negatively influenced adsorption of ammonium. Our research suggests that AAC-MA can potentially serve as a waste management tool for mitigation of ammonium and p-cresol from aqueous systems. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：63 / 73

页数：11

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