Stabilization of chromium-bearing electroplating sludge with MSWI fly ash-based Friedel matrices

被引：63

作者：

Qian, Guangren ^{[1
]}

Yang, Xiaoyan ^{[1
]}

Dong, Shixiang ^{[1
]}

Zhou, Jizhi ^{[1
]}

Sun, Ying ^{[1
]}

Xu, Yunfeng ^{[1
]}

Liu, Qiang ^{[1
]}

机构：

[1] Shanghai Univ, Sch Environm Engn, Shanghai 200072, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 165卷 / 1-3期

关键词：

Chromium-bearing electroplating sludge; MSWI fly ash; Friedel matrix; Stabilization/solidification; HEAVY-METALS; STABILIZATION/SOLIDIFICATION; CERAMICS;

D O I：

10.1016/j.jhazmat.2008.10.078

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work investigated the feasibility and effectiveness of MSWI fly ash-based Friedel matrices on stabilizing/solidifying industrial chromium-bearing electroplating sludge using MSWI fly ash as the main raw material with a small addition of active aluminum. The compressive strength, leaching behavior and chemical speciation of heavy metals and hydration phases of matrices were characterized by TCLP, XRD, FTIR and other experimental methods. The results revealed that MSWI fly ash-based Friedel matrices could effectively stabilize chromium-bearing electroplating sludge, the formed ettringite and Friedel phases played a significant role in the fixation of heavy metals in electroplating sludge. The co-disposal of chromium-bearing electroplating Sludge and MSWI fly ash-based Friedel matrices with a small addition of active aluminum is promising to be an effective way of stabilizing chromium-bearing electroplating sludge. (C) 2008 Published by Elsevier B.V.

引用

页码：955 / 960

页数：6

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