It was observed that the rate of leaching is directly proportional to ability of microstructure to transport calcium ions and higher fraction of percolated capillary pores result in higher rate of leaching.
The effects of five factors, namely: temperature, leaching time, acid normality, solid-to-liquid ratio, stirring rate on leaching yield of TiO2, Al2O3 and Fe2O3, have been investigated.
The effects of relevant factors, such as temperature, leaching time, acid normality, solid-to-liquid ratio and stirring rate on leaching yield of MgO have been investigated.
The effects of relevant factors, such as temperature, leaching time, acid normality, solid-to-liquid ratio, stirring rate, on leaching yield of TiO2 have been investigated.
Relative Na removal in both amendments shows significant differences with increasing application rates and PV of leaching water.
The contents of the PET bottle, and the temperature at which it is stored, both appear to influence the rate and magnitude of leaching.
The model verifies that the rate of leaching is an exponentially decreasing function of concentration of dissolved aluminum, and consequently the latter follows a logarithmic relation with time.
Level of compaction achieved during construction of disposal structures and moisture content in the coal waste during the construction process governs the rate of leaching process and discharge of contaminants.
Other study of the leaching of chalcopyrite reported that the rate of leaching increased with the use of larger particles sizes [ 42].
