Enhanced mercury removal from fix-bed reactor by lamella manganese oxide sorbents

Mercury (Hg) is an extremely hazardous metal and attracted more concern because of its high toxicity and bioaccumulation. Several manganese-oxide-containing sorbents prepared by co-precipitation method could exhibit the mercury removal activities toward Hg0. The mercury removal test at the temperatu...

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Published inIOP conference series. Materials Science and Engineering Vol. 103; no. 1; pp. 12042 - 12046
Main Authors Cheng, H W, Yu, C T
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 09.12.2015
Subjects
Aluminum
Bioaccumulation
Coprecipitation
Equivalence
Lamella
Magnesium
Manganese
Manganese oxides
Mercury (metal)
Sorbents
Toxicity
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Summary:Mercury (Hg) is an extremely hazardous metal and attracted more concern because of its high toxicity and bioaccumulation. Several manganese-oxide-containing sorbents prepared by co-precipitation method could exhibit the mercury removal activities toward Hg0. The mercury removal test at the temperature of 300°C has the highest removal efficiency. Under this temperature, the maximum absorption equivalent of Mg-Al-Mn and Mn-Al were up to 90.9 and 247 μg g, then gradually decreased at 400°C. The mercury removal efficiency declined in the following sequence: Mn-Al > Mg-Al-Mn > Mg-Al-Mn ACA = Mn AC(p)> Mn AC(g), due to the manganese-oxide content formed on the sorbents.
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ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/103/1/012042