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Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies
Published on: July 1, 2016
Industrial sludge reference material for the analysis of acid-extractable metals
S Nagourney1, N J Tummillo, J Birri
1Division of Science Research and Technology, New Jersey Department of Environmental Protection, PO Box 409, Trenton, NJ 08625-0409, USA.
Talanta
|October 31, 2008
Summary
This study established reference values for metals in industrial sludge using government-approved methods. These findings will improve the accuracy of metal concentration measurements in industrial waste materials.
Area of Science:
- Environmental Science
- Analytical Chemistry
- Materials Science
Background:
- Industrial sludge poses environmental challenges due to its complex metal composition.
- Accurate quantification of metals in industrial waste is crucial for regulatory compliance and environmental risk assessment.
- Standardized methods are needed for reliable analysis of metal concentrations in diverse industrial matrices.
Purpose of the Study:
- To determine reference values for extractable metal concentrations in industrial sludge.
- To validate analytical methodologies for metal determination in complex industrial waste.
- To support the development of a new Standard Reference Material (SRM 2782) for industrial sludge.
Main Methods:
- An interlaboratory study involving two government laboratories was conducted.
- Industrial sludge was prepared through drying, size-reduction, and homogenization.
- Multiple extraction and analysis methodologies, including New Jersey Department of Environmental Protection (NJDEP) and United States Environmental Protection Agency (USEPA) methods, were employed.
Main Results:
- Reference values were assigned for the acid-extractable concentrations of over 15 metals.
- The study assessed the performance of various extraction and analysis techniques.
- Interlaboratory agreement on metal concentrations was evaluated.
Conclusions:
- The study successfully established reliable reference values for metals in industrial sludge.
- The findings contribute to the characterization of NIST SRM 2782.
- Validated methodologies enhance the accuracy of environmental monitoring and waste management practices.
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