Preparation of organic chelating agents modified bentonite for mixed contaminant removal from aqueous solutions

Author

Sun, Yin-Xia ; Ren, Zong-Li ; Li, Ya-Qing

Author_Institution

Sch. of Chem. & Biol. Eng., Lanzhou Jiaotong Univ., Lanzhou, China

fYear

2012

fDate

19-21 Oct. 2012

Firstpage

1

Lastpage

4

Abstract

Natural Na-bentonites were modified with an organic chelating agent, sodium diethyldithiocarbamatre (DDTC), to prepare a new adsorbent (DDTC-bentonite) for mixed contaminant (Cu²⁺, Cd²⁺ and phenol) removal. The optimal conditions for preparation the DDTC-bentonite were investigated. Moreover, the DDTC-bentonite showed significant adsorption for the mixed contaminant from aqueouss solution. The Langmuir and Freundlich isotherm equations were applied to the data and values of parameters of these isotherm equations were evaluated.

Keywords

adsorption; cadmium; chemical engineering; chemical technology; clay; copper; materials preparation; organic compounds; wastewater treatment; Cd; Cu; DDTC-bentonite preparation; Freundlich isotherm equations; Langmuir isotherm equations; adsorbent; adsorption; aqueous solutions; cadmium removal; copper removal; mixed contaminant removal; natural sodium-bentonites; organic chelating agents; phenol removal; sodium diethyldithiocarbamatre; Equations; Materials; Mathematical model; Metals; Organic compounds; Surface contamination; DDTC-bentonite; adsorption isotherm; preparation;

fLanguage

English

Publisher

ieee

Conference_Titel

Geomatics for Integrated Water Resources Management (GIWRM), 2012 International Symposium on

Conference_Location

Lanzhou, Gansu

Print_ISBN

978-1-4673-1283-7

Type

conf

DOI

10.1109/GIWRM.2012.6349601

Filename

6349601