Removal of boron and fluoride in wastewater using Mg-Al layered double hydroxide and Mg-Al oxide.

Author(s) Kameda, T.; Oba, J.; Yoshioka, T.
Journal J Environ Manage
Date Published 2017 Mar 01
Abstract

Mg-Al layered double hydroxide intercalated with NO3(-) and Mg-Al oxide were found to remove hazardous materials such as B and As, as well as Cl(-) and SO4(2-), from artificial and real hot spring wastewater. However, compared with the mixture of Al2(SO4)3 and Ca(OH)2, both adsorbents were inferior for the removal of B from real hot spring wastewater. Both adsorbents were also found to remove F(-) and PO4(3-) from artificial semiconductor plant wastewater. Both adsorbents have the same ability to remove B from landfill wastewater as the mixture of Al2(SO4)3 and Ca(OH)2; furthermore, both remove Cl(-), Br(-), and SO4(2-). The benefit of Mg-Al layered double hydroxide intercalated with NO3(-) is that it does not require neutralization after the treatment. Overall, it can be stated that among the materials tested, Mg-Al layered double hydroxide intercalated with NO3(-) is the most suitable adsorbent for the treatment of hot spring and landfill wastewater.

DOI 10.1016/j.jenvman.2016.11.057
ISSN 1095-8630
Citation Kameda T, Oba J, Yoshioka T. Removal of boron and fluoride in wastewater using Mg-Al layered double hydroxide and Mg-Al oxide. J Environ Manage. 2017;188:58-63.

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