Plant-Soil-Contaminant Specificity Affects Phytoremediation of Organic Contaminants

Autor:	Rufus L. Chaney, Tesema Chekol, Lester R. Vough
Rok vydání:	2002
Předmět:	chemistry.chemical_classification Soil organic matter Soil biology food and beverages Soil classification Plant Science musculoskeletal system complex mixtures Pollution Humus Phytoremediation chemistry Agronomy Soil water Environmental Chemistry Organic matter Soil fertility
Zdroj:	International Journal of Phytoremediation. 4:17-26
ISSN:	1549-7879 1522-6514
Popis:	The objective of this study was the evaluation of seven forage and conservation crop species for phytoremediation of trinitrotoluene (TNT) and pyrene-contaminated soils. TNT and pyrene were added to soil at 100 mg kg-1. Crop species screening studies were conducted in a greenhouse and growth chambers on two soil types with different organic matter contents. Under high soil organic matter conditions, adsorption or covalent binding to the soil organic matter appeared to be a dominant force of removal limiting TNT and pyrene availability. In both soil types, pyrene dissipation could not be attributed to the presence of plants. However, in soils with lower organic matter content, all of the plant species treatments showed a significantly higher degree of TNT transformation compared with the unplanted control. Statistically significant differences in TNT transformation were observed among crop species grown in the low OM soil. Reed canary grass (Phalaris arundinacea L.) and switchgrass (Panicum virgat...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e082a8ea570d85a43363c72efe18c7ac https://doi.org/10.1080/15226510208500070 Zobrazit plný text záznamu Plný text ve formátu PDF