TY - JOUR
T1 - Conversion of waste incineration fly ash into zeolite A and zeolite P by hydrothermal treatment
AU - Tamura, Chikashi
AU - Matsuda, Motohide
AU - Miyake, Michihiro
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2006/2
Y1 - 2006/2
N2 - Zeolities A and P were successfully prepared by hydrothermal treatments at 60-120°C in the presence of NaOH solutions from waste incineration fly ash as a starting materials, pretreated with acid in addition to water washing and heating. The pretreatment was an important process to reproducibly convert fly ash into zeolites A and P. The relations between product fiels of zeolites A and P and hydrothermal conditions were examined. Consequently, zeolites A and P were successfully synthesized by treatments with 1.0-2.0 M NaOH solutions at 60°C for 20-48 h and with 0.5-2.0 M solutions at 80-100°C for 20-48 h, as major products, respectively. The treatment led the generation of sodalite with increasing NaOH concentration. The hydrothermal products exhibited removal characteristics for NH4+ ions, and their uptake amounts were found to depend on zeolites A and P yields.
AB - Zeolities A and P were successfully prepared by hydrothermal treatments at 60-120°C in the presence of NaOH solutions from waste incineration fly ash as a starting materials, pretreated with acid in addition to water washing and heating. The pretreatment was an important process to reproducibly convert fly ash into zeolites A and P. The relations between product fiels of zeolites A and P and hydrothermal conditions were examined. Consequently, zeolites A and P were successfully synthesized by treatments with 1.0-2.0 M NaOH solutions at 60°C for 20-48 h and with 0.5-2.0 M solutions at 80-100°C for 20-48 h, as major products, respectively. The treatment led the generation of sodalite with increasing NaOH concentration. The hydrothermal products exhibited removal characteristics for NH4+ ions, and their uptake amounts were found to depend on zeolites A and P yields.
KW - Hydrothermal synthesis
KW - Incineration fly ash
KW - Removal characteristics
KW - Resource recovery
KW - Sodalite
KW - Zeolite A
KW - Zeolite P
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U2 - 10.2109/jcersj.114.205
DO - 10.2109/jcersj.114.205
M3 - Article
AN - SCOPUS:33244466050
VL - 114
SP - 205
EP - 209
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1326
ER -