NDLI: A Review of Technologies for Characterization of Heavy Metal Contaminants

Content Provider	Springer Nature Link
Author	Azimi, Hesameddin Sullivan, Connor Ponrathnam, Timothy Howe, Gary Robertson, Seth Kurup, Pradeep Yu, Shiran Ryan, David Nagarajan, Ramaswamy Hannagan, Ryan
Copyright Year	2016
Abstract	Heavy metals from both natural and anthropogenic sources present a significant risk to human and environmental health. A number of methods have been developed for the detection and quantification of heavy metals. These methods include laboratory analysis, onsite testing of samples, and in situ techniques. This paper will review current and emerging technologies for site characterization with a specific focus on in situ detection of heavy metal contamination in geoenvironmental remediation projects. In addition, on-going research performed for the development of an in situ voltammetric sensor system will be presented. A number of devices exist for the efficient sampling of contaminated groundwater including the Hydropunch, BAT system, and Cone Sipper. Samples may either be sent to a laboratory for analysis with techniques such as atomic absorption spectroscopy, inductively coupled plasma-mass spectrometry, atomic emission spectroscopy, and X-ray fluorescence, or analyzed onsite using methods such as colorimetry, voltammetry, or biological based chemical sensors. For in situ analysis of heavy metals in soil, X-ray fluorescence and laser induced breakdown spectroscopy technologies have been integrated with the cone penetrometer probe. This paper further explores the feasibility of integrating electrochemical techniques based on voltammetry for the in situ detection of aqueous metal ions. The development of bismuth, gold nanoparticle, and polymer modified electrodes allow for the detection of heavy metal contaminants, including lead, cadmium, mercury and arsenic, at low part per billion levels.
Starting Page	421
Ending Page	436
Page Count	16
File Format	PDF
ISSN	09719555
Journal	Indian Geotechnical Journal
Volume Number	47
Issue Number	4
e-ISSN	22773347
Language	English
Publisher	Springer India
Publisher Date	2016-11-21
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cadmium Geoengineering, Foundations, Hydraulics Arsenic Field characterization Lead Voltammetry Environmental testing Detection E-Tongue Mercury Heavy metals Zinc
Content Type	Text
Resource Type	Article
Subject	Geotechnical Engineering and Engineering Geology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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