Effect of different pHs and liquid-to-solid ratios on leaching behavior of heavy metals from landfill-mined-soil-like-fractions.

The potential reuse of landfill-mined-soil-like-fractions (LFMSF), a significant by-product of landfill mining (LFM), is restricted due to the leaching of heavy metals (HMs). In this context, the present study assesses the leaching behavior of six HMs, i.e.

Empirical approach to predict leached nutrients from landfill site.

An empirical approach is made in this investigation to predict the leached concentrations of sodium (Na), calcium (Ca), and potassium (K) in the effluents from a landfill site. Water at certain predetermined inflow filling rate is applied to a specific ponding depth, at the top of an experimental column filled with landfill refuse soil at the top (upper layer) and normal local soil at the bottom (base layer). The water infiltrates into the upper layer soil, percolates through the pores in upper and base layers, and in the process leaches the nutrients from the soils that are collected at the bottom of the column.