Development of impermeable coating treatment on reutilization of contaminated soils and solid wastes

The impermeable coating treatment is an original technology which coats solid wastes and soils by a particle unit with the impermeable material containing water-absorbing polymers. The elution of attached substances on the surface of soil particles such as heavy metals will be suppressed, because each particle of soils is coated with impermeable materials uniformly. Furthermore, because the swollen impermeable coating material by absorbing the pore water can fill the void space of solid wastes and soils, the treated soils will be expected to improve their water interception performance. In order to utilize solid wastes and soils, this study evaluates the basic properties such as the elution of heavy metals and a water permeability for treated soils with the impermeable coating by laboratorial experiments.