Determination of the Environmental TCLP Metals in Waste-Waters, Solid Wastes, and Soils by Flame Atomic Absorption Spectrophotometry
Hazardous wastes can originate from many
sources – industrial processes, product
formulations, synthetic operations, virtually any
manufacturing business. The nature and
composition of the “wastes” can vary so much
that one industry’s discharge can serve as
another’s raw materials. It is the tremendous
transfer of these materials – their storage,
transportation, spillage and leakage into the
environment – which has caused great concern.
Regulation of these discharged solid and liquid
materials is a crucial part of the U.S. EPA and
the State-level Departments of Environmental
Protection programs for defining the “degree of
hazard” of a particular material. The basic
methods describe procedures to “leach” any
soluble heavy metals from samples using acid(s)
(to simulate acid rain, for example). While there
is a lot of printed material available from these
Government agencies, the basic protocols for the
collection and preparation of this type of sample
is referenced in the Standard Methods of SW-
846 as part of the Resource Conservation and
Recovery Act (RCRA).
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