A pilot-scale example of phytoremediation in the arctic area: comparison of zones placed at different distances from a metal emission source

• Autorzy: Kikuchi R. , Gorbacheva T. T. , Gerardo R.
• Języki publikacji: EN

Abstrakty

EN

Biological methods for soil rehabilitation are comparatively cheap, but it is only a few years since the strategies of biological remediation were adopted. This paper therefore discusses the possibility of using the approach of phytoremediation (a biological method) for tackling heavy metal-contaminated land with harsh climatic conditions in the arctic region. A preliminary research on a pilot scale of 4 ha was carried out on territories subjected to continuing pollution load from the Monchegorsk smelter complex (67°51'N and 32°48'E in Russia) in order to investigate the feasibility of phytoremediation under a harsh climate (annual mean temperature of -1°C) and current pollution load (~450 to ~2,400 g ha-1 y-1 Ni, ~750 to ~2,700 g ha-1 y-1 Cu and other depositions): after a compost substratum was added to the contaminated land, metal-tolerant plants (willow and birch collected in the tolerance zone) were used for this research. The results obtained over 3 years showed the applied plants had good phytostabilization (i.e. the fixation of metals in chemically inert form); the Ni concentration (457.2 mg kg-1) and the Cu concentration (338.3 mg kg-1) in the willow leaves in the test field were 117 times and 147 times greater, respectively, than those in the background field. It is therefore indicated that Ni, Cu and other metals can be removed from metal-contaminated land by harvesting the plants (i.e. removal of annual litterfall of deciduous trees from the contaminated territory).

Słowa kluczowe

EN

Arctic; copper; heavy metals; nickel; phytoremediation; willow

PL

wierzba; fitoremediacja; metale ciężkie; miedź; nikiel; region arktyczny

• Wydawca: University of Warmia and Mazury in Olsztyn, Poland
• Czasopismo: Environmental Biotechnology
• Rocznik: 2006
• Tom: Vol. 2, No. 1
• Strony: 37--45
• Opis fizyczny: Bibliogr. 30 poz., rys., tab., wykr.

Twórcy

autor

Kikuchi R.

autor

Gorbacheva T. T.

autor

Gerardo R.

• Department of Basic Science and Environment (CERNAS); ESAC - Polytechnic, Institute of Coimbra, Bencanta, 3040-316 Coimbra, Portugal, Tel.: [phone]; fax: [phone],

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