Long-term leaching of As, Cd, Mo, Pb, and Zn from coal fly ash in column test
Carregando...
Data
2019
Data de publicação:
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
Environmental Monitoring and Assessment
ODS
Exportar
Resumo
Globally, millions of tons of coal fly ash
(CFA) are generated per year, and the majority of this
material is usually stored in stock piles or landfills, and
in a long-term, it can be an environmental hazard if
rainwater infiltrates the ashes. Long-term leaching studies
of Brazilian ashes are scarce. The purpose of this
study was to evaluate arsenic, cadmium, molybdenum,
lead, and zinc leaching behavior from a Brazilian CFA
by a column experiment designed to simulate field
conditions: slightly acid rain considering seasonality of
precipitation and temperature for a long-term leaching
period (336 days). All elements were leached from CFA,
except lead. Elements leaching behavior was influenced
by leaching time, leaching volume, and temperature.
Higher leachability of As and Cd from CFA during
warm and wet season was observed. Results indicate a
potential risk to soil and groundwater, since ashes are
usually stored in uncovered fields on power plants
vicinity.
Como referenciar
LANGE, C.N.; FLUES, M.; HIROMOTO, G.; BOSCOV, M.E.G.; CAMARGO, I.M.C. Long-term leaching of As, Cd, Mo, Pb, and Zn from coal fly ash in column test. Environmental Monitoring and Assessment, v. 191, n. 10, p. 1-12, 2019. DOI: 10.1007/s10661-019-7798-0. Disponível em: http://repositorio.ipen.br/handle/123456789/30444. Acesso em: 13 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.