Abstract
This laboratory study was undertaken to evaluate the utilization of lignin sulphide for soil treatment and stabilization. We evaluated the change in soil properties, and the safety of lignin based stabilizer as a soil amendment. The environmental tests results of the treated samples and leaching characteristics test were determined. These tests includes: COD, BOD, P-PO43-, N-TKN, Sulfide, pH, Solubility, and Bio-assay test. The compaction and California Bearing Ratio (CBR) characteristics of the resulting mixes were evaluated. Soil samples were stabilized with various percentages of stabilizer concentrations. As a result, the application of the soil stabilizer enhances the hydro-physical properties of the soil as indicated by CBR tests and facilitates the immobilization of pollutants according to environmental tests. It was found that this stabilizer is effective, environmentally friendly and relatively cheap to be used for a variety of purposes. The results of the effects and the suitability of the soil stabilizer are discussed in this paper.