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General Informaiton
Acid tars are waste residues of obsolete benzole refining,
oil re-refining and white oil production processes. They are
black, acidic, viscous semi-liquids comprising an extremely
complex mixture of water, sulfuric acids and a large range of
organic compounds.
Acid tars were often dumped into excavations and existing
holes in the ground together with various co-disposed materials
without any treatment or engineered lining system leaving a
legacy of acid tar lagoons. There are more than 150 registered
sites within UK and many unregistered ones. Acid tar lagoons
have been reported in US, Germany, Belgium, Netherland, China
and many other countries.
Acid tars may pose potential risks to human health and the
environment because of their acidity, volatiles and other hazardous
components. The major contamination pathways of acid tar lagoons
are considered to be direct contact, gas emission, bulk tar
migration offsite, and surface and ground water contamination.
Properties of Acid
Tars
Acid Tar Lagoons in
public domain
Features of Acid Tars
Leaching Characteristics
Conceptual Model of Acid
Tar Lagoon
All information herein is provided in good faith. It is not intended to be, and should not be relied on as, a substitute for professional advice. See disclaimer.
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