학술논문

Cadmium Analysis using Field-Deployable Nanoband Electrode System and Its Removal using Electrocoagulation
Document Type
Article
Source
ECS Transactions; October 2008, Vol. 13 Issue: 15 p21-34, 14p
Subject
Language
ISSN
19385862; 19386737
Abstract
Cadmium (Cd) is an extremely toxic metal commonly found in industrial workplaces. Major industrial releases of Cd are due to waste streams and leaching of landfills, and from a variety of operations that involve Cd or zinc. Particularly, Cd can be released to drinking water from the corrosion of some galvanized plumbing and water main pipe materials. USEPA set Maximum Contaminant Level (MCL) for cadmium at 5 ppb. Long term exposure of Cd above the MCL results in kidney, liver, bone and blood damage. An accurate and rapid measurement of cadmium in the field remains a technical challenge. In this work, a relatively new method of a nanoband electrode system using anodic stripping voltammetry was optimized by changing deposition potential, electrolyte, and plating time. Electrocoagulation was efficiently used to remove Cd from wastewater. Removal mechanism of Cd in electrocoagulation was also proposed with the help of XRD, FTIR, and SEM-EDS.

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