Uptake and Bioaccumulation of Pentachlorophenol by Emergent Wetland PlantPhragmites australis(Common Reed) in Cadmium Co-contaminated Soil

Autor: Hassen Abdenaceur, Nadhira Ben Aissa, Nejla Hechmi, Naceur Jedidi
Rok vydání: 2013
Předmět:
Zdroj: International Journal of Phytoremediation. 17:109-116
ISSN: 1549-7879
1522-6514
DOI: 10.1080/15226514.2013.851169
Popis: Despite many studies on phytoremediation of soils contaminated with either heavy metals or organics, little information is available on the effectiveness of phytoremediation of co-occurring metal and organic pollutants especially by using wetland species. Phragmites australis is a common wetland plant and its potential for phytoremediation of cadmium pentachlorophenol (Cd-PCP) co-contaminated soil was investigated. A greenhouse study was executed to elucidate the effects of Cd (0, 10, and 20 mg kg(-1)) without or with PCP (0, 50, and 250 mg kg(-1)) on the growth of the wetland plant P. australis and its uptake, accumulation and removal of pollutant from soils. After 75 days, plant biomass was significantly influenced by interaction of Cd and PCP and the effect of Cd on plant growth being stronger than that of PCP. Coexistence of PCP at low level lessened Cd toxicity to plants, resulting in improved plant growth and increased Cd accumulation in plant tissues. The dissipation of PCP in soils was significantly influenced by interactions of Cd, PCP and plant presence or absence. As an evaluation of soil biological activities after remediation soil enzyme was measured.
Databáze: OpenAIRE