Abstract
In flue gas desulphurization processes of coal-fired power plants great amounts of solid wastes and fly ash are formed. The composition of these wastes is mostly dependent on the coal burned, combustion conditions and the quality of the absorbent used in desulphurization process. The amounts of different trace elements are generally smaller in desulphurization products than in fly ash. Greatest amounts of different trace elements are accumulated to the sludge from the waste water process. The main dissoluble species are sulphates, calsium, chlorides, sodium and potassium. The leachability of boron is higher from the fly ash than from other wastes. Other high measured contents are chromium in fly ash and wet-dry desulphurization product and arsenic and mercury in sludge. Fly ash is found mutagenic in toxicity tests. Fgd-gypsum is not mutagenic. Leaching waters of fly ash, sludge and product of wet-dry process are acutely toxic to water flea Daphnia magna. Leaching water of fgd-gypsum is not toxic according to the standard test method.
Citation Formats
Siitonen, T.
Leachability and toxicity of flue gas desulphurization products and coal fly ash; Rikinpoistotuotteiden ja kivihiilen lentotuhkan liukoisuudesta ja toksisuudesta.
Finland: N. p.,
1991.
Web.
Siitonen, T.
Leachability and toxicity of flue gas desulphurization products and coal fly ash; Rikinpoistotuotteiden ja kivihiilen lentotuhkan liukoisuudesta ja toksisuudesta.
Finland.
Siitonen, T.
1991.
"Leachability and toxicity of flue gas desulphurization products and coal fly ash; Rikinpoistotuotteiden ja kivihiilen lentotuhkan liukoisuudesta ja toksisuudesta."
Finland.
@misc{etde_10141255,
title = {Leachability and toxicity of flue gas desulphurization products and coal fly ash; Rikinpoistotuotteiden ja kivihiilen lentotuhkan liukoisuudesta ja toksisuudesta}
author = {Siitonen, T}
abstractNote = {In flue gas desulphurization processes of coal-fired power plants great amounts of solid wastes and fly ash are formed. The composition of these wastes is mostly dependent on the coal burned, combustion conditions and the quality of the absorbent used in desulphurization process. The amounts of different trace elements are generally smaller in desulphurization products than in fly ash. Greatest amounts of different trace elements are accumulated to the sludge from the waste water process. The main dissoluble species are sulphates, calsium, chlorides, sodium and potassium. The leachability of boron is higher from the fly ash than from other wastes. Other high measured contents are chromium in fly ash and wet-dry desulphurization product and arsenic and mercury in sludge. Fly ash is found mutagenic in toxicity tests. Fgd-gypsum is not mutagenic. Leaching waters of fly ash, sludge and product of wet-dry process are acutely toxic to water flea Daphnia magna. Leaching water of fgd-gypsum is not toxic according to the standard test method.}
place = {Finland}
year = {1991}
month = {Dec}
}
title = {Leachability and toxicity of flue gas desulphurization products and coal fly ash; Rikinpoistotuotteiden ja kivihiilen lentotuhkan liukoisuudesta ja toksisuudesta}
author = {Siitonen, T}
abstractNote = {In flue gas desulphurization processes of coal-fired power plants great amounts of solid wastes and fly ash are formed. The composition of these wastes is mostly dependent on the coal burned, combustion conditions and the quality of the absorbent used in desulphurization process. The amounts of different trace elements are generally smaller in desulphurization products than in fly ash. Greatest amounts of different trace elements are accumulated to the sludge from the waste water process. The main dissoluble species are sulphates, calsium, chlorides, sodium and potassium. The leachability of boron is higher from the fly ash than from other wastes. Other high measured contents are chromium in fly ash and wet-dry desulphurization product and arsenic and mercury in sludge. Fly ash is found mutagenic in toxicity tests. Fgd-gypsum is not mutagenic. Leaching waters of fly ash, sludge and product of wet-dry process are acutely toxic to water flea Daphnia magna. Leaching water of fgd-gypsum is not toxic according to the standard test method.}
place = {Finland}
year = {1991}
month = {Dec}
}