Mass balance of arsenic and antimony in municipal waste incinerators |
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Authors: | Nobuhisa Watanabe Saburo Inoue Hisao Ito |
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Institution: | (1) Osaka City Institute of Public Health and Environmental Sciences, 8-34 Tohjoh-cho, Tennohji-ku, Osaka 5430026, Japan Tel. +81-6-6771-3354; Fax +81-6-6772-0676, JP |
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Abstract: | The arsenic and antimony balance in two municipal waste incinerators was investigated. Initially, the production rates of
ash and wet scrubber effluent were estimated. Then the arsenic and antimony in the ash and wet scrubber effluent were determined,
which gave an estimate of the elemental balance. The total amounts of arsenic and antimony in the municipal waste were 0.9 g/t
and 30–44 g/t, respectively. The distributions to fly ash were 45–47% and 33–74% for arsenic and antimony, respectively. The
distribution mechanisms of arsenic and antimony are discussed from the viewpoints of their thermodynamics as well as their
initial valencies, which greatly affect their behaviour.
Received: July 2, 1998 / Accepted: February 27, 1999 |
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Keywords: | Arsenic Antimony Municipal waste Incineration Thermodynamics |
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