A Study on the Removal of Heavy Metal with Mg-Modified Zeolite

Autor:	Min-Seok Go, Gyu-Cheol Kim, Jei-Pil Wang
Rok vydání:	2020
Předmět:	Materials science Magnesium Sodium chemistry.chemical_element Raw material Metal Industrial wastewater treatment Adsorption chemistry visual_art visual_art.visual_art_medium Ceramic Zeolite Nuclear chemistry
Zdroj:	Journal of Korean Powder Metallurgy Institute. 27:287-292
ISSN:	2287-8173 1225-7591
DOI:	10.4150/kpmi.2020.27.4.287
Popis:	The subject of this study is a zeolite generated as a by-product of recycling LAS (lithium-aluminum-silicate) resources, a kind of glass and ceramic produced by induction. The zeolite by-product is modified into Mg-zeolite using Mg as a cation to absorb Pb, a heavy metal generated from water pollution caused by recent industrial wastewater. An ion-exchange method is used to carry out the modification process, from zeolite byproduct to Mg-zeolite, and simultaneously absorb the Pb in the heavy-metal solution (99.032 mg/L). It is found that the sodium zeolite in the raw material residue can be modified to magnesium zeolite by reacting it with a mixture solution at 1 M concentration for 24 h. As a result, it is found that the residual Pb (0.130 mg/L) in the heavy metal solution is shown to be absorbed by 99.86%, with successful formation of a Mg-modified zeolite.
Databáze:	OpenAIRE
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