Mechanisms of a low-carbon solidifier for Cu/Zn contaminated soil: A multiscale study linking mechanical, electrochemical, and microstructural properties behavior
Source abstract
Abstract
This study presents an innovative low-carbon solidifier derived from solid waste for the remediation of Cu/Zn-contaminated soil. Results indicated that incorporating solid waste enhanced mechanical strength, whereas Cu 2+ and Zn 2+ ions reduced the 7-day strength by approximately 48.5% and 88.3%, respectively. Electrochemical impedance spectroscopy revealed that the addition of heavy metal ions decreases the semicircle radius and completeness of the Randles-type model. A strong correlation was observed between strength and electrochemical parameters. Microstructural analysis further demonstrated that solid waste addition promoted a denser matrix with flocculent and needle-like hydration products. The solidification mechanisms primarily involve physical encapsulation, isomorphic substitution, and adsorption. These findings provide theoretical support for sustainable solid waste utilization and effective heavy metal soil remediation, offering significant environmental, economic, and social benefits.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Landfill Environmental Impact Studies · Microbial Applications in Construction Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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