期刊论文

Zhou, Lulu;Liu, Wanhui

英文

Waste Management

0956-053X

2020

103

361-369

10.1016/j.wasman.2019.12.048

The effect of Al addition on the toxicity leaching of Pb and Cd (mg/L) and the compressive strengths of solidified products is shown in Fig. S2 in the supporting information (SI). The experiments for raw MSWI fly ashes and the mortar without supplementary aluminum (i.e., zero dosage) are synchronously conducted as the control runs. The addition of aluminum powders not only directly increase the alumina available in the raw MSWI fly ashes also changed the Si to Al ratio in the mortars. In the

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Traditional cementation technique is insufficient in making municipal solid waste incineration (MSWI) fly ashes meet the permissible leaching threshold. Aluminum supplementation and electrokinetic (EK) activation were combinedly incorporated into the traditional solidification pathway to enhance the geopolymerization and the immobilization of Pb and Cd in MSWI fly ashes in this study. The aluminum addition remarkably affected the geopolymer formation. The minimum toxicity leaching as well as the maximum compressive strength were achieved at the combination of the voltage gradient of 1.0 V/cm, ...