Kinetic, isotherm and thermodynamic investigations of nitrite (NO2-) removal from water by anion exchange resins

被引：7

作者：

Asci, B. ^{[1
]}

Kovenc, E. ^{[1
]}

Arar, O. ^{[1
]}

Arda, M. ^{[1
]}

机构：

[1] Ege Univ, Fac Sci, Dept Chem, TR-35100 Izmir, Turkey

来源：

GLOBAL NEST JOURNAL | 2018年 / 20卷 / 02期

关键词：

ion exchange; nitrite; strong base resin; weak base resin; AQUEOUS-SOLUTIONS; SORPTION; MODELS; IONS;

D O I：

10.30955/gnj.002433

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study presents the evaluation of a strong base (Purolite A200) and weak base (Purolite PFA847) polymeric anion exchange resins for nitrite removal. The different parameters on the removal of NO2- were investigated in batch sorption mode. Common isotherm models; Langmuir and Freundlich, were used in order to present a description of the equilibrium data. Experimental results showed that the equilibrium data tend to follow Freundlich isotherm model for weak base resin and Langmuir model for strong base resin. The sorption of NO2- on anion exchange resins was found to follow the pseudo-second order kinetic model. The values of thermodynamic parameters proved that ion exchange reaction of NO2- onto such resins are endothermic (Delta H > 0).

引用

页码：368 / 372

页数：5

共 15 条

[11] Nitrite influence on fish: a review [J].