Heavy metal binding capacity (HMBC) of municipal solid waste landfill leachates

Bio-immobilization of Cu and Zn in recirculated bioreactor landfill

“…They migrate in landfill leachate when the pH of the environment reduces to acid values (pH<7; Christensen et al 1994;Yanful et al 1988). However, this migration can be decreased by physical processes (such as adsorption, sedimentation, and filtration) or chemical barriers (such as complexation and precipitation; Baun and Christensen 2004;Christensen et al 1999;Förstner 1995;Ward et al 2005;Weng et al 2002;Wu and Li 1998). Investigations indicated that the migration of heavy metals was very low during the first decades after deposition compared to the accumulated amount (Finnveden et al 1995).…”

Migration behavior of Cu and Zn in landfill with different operation modes

“…At present, most studies on heavy metals in landfill are focusing on leachate analysis [4,18,19] or distribution estimating with specific MSW samples from some full-scale landfills [8,[20][21][22]. For example, Qu et al [21] described the heavy metal migration in the initial stage of a fullscale landfill by the variation of heavy metal concentrations in leachate and Prechthai et al [3] assessed the heavy metal mobilization from the variation of heavy metal contents in landfill refuse.…”

Chelating Agents and Heavy Metal Phytoextraction

“…Dissolved organic matters in soil significantly increase heavy metals' leaching (Ward et al 2005). Soil humus includes different fractions, e.g., humic acid, fulvic acid, and humin.…”