The role of microorganisms in dispersion of thallium compounds in the environment

• Autorzy: Sklodowska A , Matlakowska R.
• Języki publikacji: EN

Abstrakty

EN

Thallium is a highly toxic element and very rarely studied in the context of environmental hazards connected with zinc and non-ferrous metal industry. Microorganisms naturally existing in post-flotation and smelt wastes can participate in thallium release from waste deposits and can contribute to its dispersion in the environment. Twenty-one isolates were obtained from wastes of a non-ferrous smelter in Southern Poland characterised by high heavy metal contamination. Ten isolates showed high activity in thallium leaching from wastes (post-flotation and smelt wastes) as well as from pure thallous sulphide. Additionally, cadmium and lead were bioleached from wastes. The isolated bacteria indicated thallium resistance at a concentration up to 100 mg/l and some of them were able to survive in good condition at a concentration of up to 4 g/l. The same bacteria were isolated from rivers and wastewater in this region. A preliminary characterisation of isolates was performed. It was shown that some petroleum products i.e. asphalt-base crude occasionally used for waste immobilisation at the edge of pond or flotation surfactants partially stopped the activity of sulphide oxidising bacteria.

Słowa kluczowe

EN

thallium; thallium compound; environment pollution; environment; microorganism; dispersion; metal bioleaching

• Wydawca: -
• Czasopismo: Polish Journal of Microbiology
• Rocznik: 2004
• Tom: 53
• Numer: 4
• Opis fizyczny: p.273-278,fig.,ref.

Twórcy

autor

Sklodowska A

• Warsaw University, Miecznikowa 1, 02-096 Warsaw, Poland

autor

Matlakowska R.

Bibliografia

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