Influence of amendments and aided phytostabilization on metal availability and mobility in Pb/Zn mine tailings

• Published in: Journal of environmental management 2014-06, Vol.139, p.15-21
• Main Authors: Lee, Sang-Hwan, Ji, WonHyun, Lee, Won-Seok, Koo, Namin, Koh, Il Ha, Kim, Min-Suk, Park, Jeong-Sik
• Format: Article
• Language: English
• Subjects: Amendments; Animal, plant and microbial ecology; Applied ecology; Availability; Biodegradation, Environmental; Biological and medical sciences; Comparative analysis; Conservation, protection and management of environment and wildlife; Extraction processes; Flowers & plants; Fundamental and applied biological sciences. Psychology; General aspects; Heavy metals; Industrial Waste; Iron; Metals, Heavy - analysis; Metals, Heavy - chemistry; Metals, Heavy - metabolism; Mine tailings; Mining; Mobility; Photochemistry; Phytostabilization; Plant Roots - metabolism; Poaceae - metabolism; Pteridium - metabolism; Slag; Soil Pollutants - analysis; Soil Pollutants - chemistry; Soil Pollutants - metabolism; Waste Management - methods
• ISSN: 0301-4797; 1095-8630
• DOI: 10.1016/j.jenvman.2014.02.019

A greenhouse experiment was conducted to evaluate the effect of four different amendments, bone mill, bottom ash, furnace slag, and red mud, as immobilizing agents and the plant species Miscanthus sinensis and Pteridium aquilinum in aided phytostabilization of Pb/Zn mine tailings. The effects of amendments and plants on the availability and mobility of heavy metals were evaluated using single extraction, sequential extraction, pore-water analysis, and determination of heavy metal concentrations in plants. The application of Fe-rich amendments significantly reduced the amount of soluble and extractable heavy metals in the tailings (p