Next Article in Journal
Design of a Broadband Coplanar Waveguide-Fed Antenna Incorporating Organic Solar Cells with 100% Insolation for Ku Band Satellite Communication
Previous Article in Journal
Effect of Porosity on Dynamic Mechanical Properties and Impact Response Characteristics of High Aluminum Content PTFE/Al Energetic Materials
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Materials
Volume 13
Issue 1
10.3390/ma13010141
materials-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Solidification of Municipal Solid Waste Incineration Fly Ash through Co-Mechanical Treatment with Circulation Fluidized Bed Combustion Fly Ash

by
Zhengzhen Yao
,
Zhonghui Xu
*,
Qin Shuai
,
Xiaoyue Chen
,
Zao Jiang
,
Xi Peng
,
Yu Li
,
Ran An
,
Xin Jiang
and
Han Li
Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
*
Author to whom correspondence should be addressed.
Materials 2020, 13(1), 141; https://doi.org/10.3390/ma13010141
Submission received: 15 November 2019 / Revised: 24 December 2019 / Accepted: 24 December 2019 / Published: 30 December 2019
(This article belongs to the Section Construction and Building Materials)
Browse Figures
Versions Notes

Abstract

This study aims to explore the solidification performance of municipal solid waste incineration fly ash (MSWIFA) through co-mechanical treatment with circulation fluidized bed combustion fly ash (CFBCFA). The mineral characterization, physical properties, and leaching resistance of the solidified bodies are investigated by X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FT-IR), Thermogravimetry-differential thermal analysis (TG-DTA), compressive strength, porosity, and leaching test, respectively. C–S–H, ettringite (AFt), and Friedel’s salt (FS) are the predominant hydrate products in the CFBCFA based solidified bodies, which are similar to the cement based solidified bodies. However, CFBCFA based solidified bodies exhibit higher compressive strength (36.7 MPa) than cement based solidified bodies (11.28 MPa), attributing to the three reasons: lower porosity and more compact internal structure of CFBCFA based solidified bodies; large amounts of Ca(OH)2 originating from MSWIFA are conducive to promoting the hydration reaction extent and compressive strength of the CFBCFA based solidified bodies; excessive Ca(OH)2 would cause compressive strength deterioration for the cement based solidified bodies. The heavy metals (Zn, Cu, Cr, Cd, and Pb) concentrations in the extraction solution of the CFBCFA based solidified bodies are far below the requirements of Chinese National Standard GB 5085.3-2007. The solidification of MSWIFA through co-mechanical treatment could be an ideal substitute for cement solidification technology.
Keywords: MSWIFA; CFBCFA; solidification; co-mechanical treatment; heavy metals MSWIFA; CFBCFA; solidification; co-mechanical treatment; heavy metals

Share and Cite

MDPI and ACS Style

Yao, Z.; Xu, Z.; Shuai, Q.; Chen, X.; Jiang, Z.; Peng, X.; Li, Y.; An, R.; Jiang, X.; Li, H. Solidification of Municipal Solid Waste Incineration Fly Ash through Co-Mechanical Treatment with Circulation Fluidized Bed Combustion Fly Ash. Materials 2020, 13, 141. https://doi.org/10.3390/ma13010141

AMA Style

Yao Z, Xu Z, Shuai Q, Chen X, Jiang Z, Peng X, Li Y, An R, Jiang X, Li H. Solidification of Municipal Solid Waste Incineration Fly Ash through Co-Mechanical Treatment with Circulation Fluidized Bed Combustion Fly Ash. Materials. 2020; 13(1):141. https://doi.org/10.3390/ma13010141

Chicago/Turabian Style

Yao, Zhengzhen, Zhonghui Xu, Qin Shuai, Xiaoyue Chen, Zao Jiang, Xi Peng, Yu Li, Ran An, Xin Jiang, and Han Li. 2020. "Solidification of Municipal Solid Waste Incineration Fly Ash through Co-Mechanical Treatment with Circulation Fluidized Bed Combustion Fly Ash" Materials 13, no. 1: 141. https://doi.org/10.3390/ma13010141

APA Style

Yao, Z., Xu, Z., Shuai, Q., Chen, X., Jiang, Z., Peng, X., Li, Y., An, R., Jiang, X., & Li, H. (2020). Solidification of Municipal Solid Waste Incineration Fly Ash through Co-Mechanical Treatment with Circulation Fluidized Bed Combustion Fly Ash. Materials, 13(1), 141. https://doi.org/10.3390/ma13010141

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop