Geopolymerization enhanced hydrothermal synthesis of analcime from steel slag and CFBC fly ash and heavy metal adsorption on analcime

Liu, Ze1; Li, Li1; Shao, Ningning1,2; Hu, Tao1; Han, Le1; Wang, Dongmin1

2020-06-19

10.1080/09593330.2018.1545805

ENVIRONMENTAL TECHNOLOGY   影响因子和分区

0959-3330

1479-487X

This work is focused on crystal phase transition of solid wastes and functional application of crystal analcime in waste water purification, which provide a new environment-friendly route. In this paper, analcime was synthesized from steel slag and Circulating fluidized bed combustion (CFBC) fly ash (CFA) by hydrothermal method enhanced via geopolymerization (non-crystallized process). Then the analcimes were used for the removal of heavy metal ions (Pb2+, Cu2+) in aqueous solutions. Both the raw materials and products were characterized by XRF, XRD, FT-IR, SEM-EDS, and TEM. The results showed that non-crystallized process reduced the time of hydrothermal reaction and promoted the purity of analcime. The adsorption kinetics of analcime were all well fitted the pseudo-second-order model, and adsorption isotherms were well described by the Langmuir model. The maximum adsorption capacity of analcime for Pb2+ and Cu2+ were around 75.76, and 21.83 mg/g, respectively. The preference order observed for adsorption is Pb2+ > Cu2+.

Steel slag circulating fluidized bed combustion fly ash geopolymerization analcime heavy metal ions

SCI ; EI

英语

其他

National Key Research and Development Program of China[2017YFC0703203] ; Fundamental Research Funds for the Central Universities of China[2009KH09][2009QH02]

Environmental Sciences & Ecology

Environmental Sciences

WOS:000533521200001

TAYLOR & FRANCIS LTD

20203209033160

Chemicals removal (water treatment) ; Hydrothermal synthesis ; Adsorption ; Heavy metals ; Fluidized bed process ; Slags ; Metal ions ; Geopolymers ; Waste incineration ; Fluidized bed combustion ; Fluidized beds ; Inorganic polymers

Masonry Materials:414 ; Industrial Wastes:452.3 ; Industrial Wastes Treatment and Disposal:452.4 ; Fuel Combustion:521.1 ; Metallurgy and Metallography:531 ; Metallurgy:531.1 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Polymers:815.1.2

ENVIRONMENT/ECOLOGY

Web of Science

1.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China

Liu, Ze,Li, Li,Shao, Ningning,et al. Geopolymerization enhanced hydrothermal synthesis of analcime from steel slag and CFBC fly ash and heavy metal adsorption on analcime[J]. ENVIRONMENTAL TECHNOLOGY,2020,41(14):1753-1765.

Liu, Ze,Li, Li,Shao, Ningning,Hu, Tao,Han, Le,&Wang, Dongmin.(2020).Geopolymerization enhanced hydrothermal synthesis of analcime from steel slag and CFBC fly ash and heavy metal adsorption on analcime.ENVIRONMENTAL TECHNOLOGY,41(14),1753-1765.

Liu, Ze,et al."Geopolymerization enhanced hydrothermal synthesis of analcime from steel slag and CFBC fly ash and heavy metal adsorption on analcime".ENVIRONMENTAL TECHNOLOGY 41.14(2020):1753-1765.