Study the effect of Industrial Dairy, Textile, Leather and Paper Waste Water on the Engineering and Geotechnical Properties of Fine-Grained Soil

Abstract

Comprehend and forecasting the engineering characteristics of fine-grained soils is crucial for the practice of geotechnical engineering. Fine-grained soil contamination occurs on a daily basis as a result of industrial development and pipeline or reservoir leaks. Due to the influence of the surrounding condition, substantial damage occurs in the foundations of buildings. The presence of industrial wastewater in the soil contributes to a change in its physical, chemical and mechanical properties, and then negatively affects the foundations of various facilities. In addition to environmental issues such as groundwater contamination, the changing of the geotechnical qualities of polluted soil is a concern. As a result of the concentrations of pollutants resulting from the industrial businesses such as dairy products industry, spinning and weaving factories, paper factories and leather wastewater are extremely high in developing countries. Disposal of untreated industrial waste water is a common problem in these countries. This paper describes an experimental investigation that was conducted to explore the effect of four types of industrial wastewater; dairy (DW), textile (TW), leather (LW) and paper (PW) on the deformational behavior of fine-grained soil. Fine-grained soil was exposed to DW, TW, LW and PW for 2, 4, 6, 8, 12, and 16 months. Four remolded soil groups of samples are generated for this investigation and combined with the four types of industrial wastewater of constant moisture content (70%). The Atterberg limits, plasticity index, specific gravity, free swelling, optimal moisture content (OMC), and maximum dry density (γdmax) of each mixture were calculated after 0, 2, 4, 6, 8, 12, and 16 months of mixing soil with industrial waste water. Comparisons were made between the results of four groups of samples.