Structure Formation of the Surface Layer of Soil as a Way to Prevent a Wind and Water Erosion

Saule Aidarova ,N Bekturganova ,Kuanyshbek Мusabekov ,Moldir Kerimkulova ,А Sharipova

doi:10.18321/ectj129

Abstract

The present work describes the results of a study of structuring ability of water-soluble polymers such as polydimethyl diallyl ammonium chloride, saponification product of polyacrylonitrile (uniflok) and their interpolymer complex. On the kinetics of growth of Rehbinder’s plastic durability of coagulation structure of soil concentrated suspensions the effect of water soluble polymers and interpolymer complexes on the structure formation in the dispersions was studied. It was determined that the process is a two-step process which was caused by the adsorption step process: the binding of macromolecules with the soil surface by the random segments and conformational changes of macromolecules in the adsorbed layer. It was found that the soil stability structured by polymers against wind and water erosion increased with the concentration of water-soluble polymers. This is due to the increase of the structure formation in concentrated suspensions of soil in the presence of water soluble polymers. On the basis of the results it can be concluded that the treatment of mineral dispersions by water-soluble polymers alone or in the form of the interpolymer complex leads to a significant reduction of dust-and run-off of soil particles. The PDMDAAC/uniflok interpolymer complex in comparison with polymers reduces intensively the deflation which has a great economic and ecological importance.

Highlights

IntroductionSpecial situation of the soil is determined by the fact that being located on the boundary of a contact and an interaction between the lithosphere, hydrosphere, atmosphere and it fulfills global functions: the regulation of the chemical composition of the atmosphere and hydrosphere, biosphere regulation processes, the active accumulation of organic matter and etc.At present with the environmental degradation caused by unsustainable human use of pedosphere and unfavorable natural phenomena soil turns into non-renewable resources of the earth.To prevent the soil erosion is possible by various methods and techniques [1,2,3,4].One of the possible solutions of the problem of the soil erosion can be the use of water-soluble polymers for structuring of the soil surface [3,4,5].In connection with this study structuration of brown soil with water soluble polymers such as polydimethyldiallyl ammonium chloride, saponification product of polyacrylonitrile (uniflok) and their interpolymer complex.The selection of polymers as research objects is due to the fact that on the one hand, polydimethyldiallylammonium chloride is a well studied polyelectrolyte and has many practical applications
The kinetics of the process is showed the similarity of kinetic curves for individual polymers and their complexes (Fig. 1)
At small t a little growth of plastic durability (Pm) values is happened. This indicates a structuring of disperse system by polymers and their interpolymer complex

Summary

Introduction

Special situation of the soil is determined by the fact that being located on the boundary of a contact and an interaction between the lithosphere, hydrosphere, atmosphere and it fulfills global functions: the regulation of the chemical composition of the atmosphere and hydrosphere, biosphere regulation processes, the active accumulation of organic matter and etc.At present with the environmental degradation caused by unsustainable human use of pedosphere and unfavorable natural phenomena soil turns into non-renewable resources of the earth.To prevent the soil erosion is possible by various methods and techniques [1,2,3,4].One of the possible solutions of the problem of the soil erosion can be the use of water-soluble polymers for structuring of the soil surface [3,4,5].In connection with this study structuration of brown soil with water soluble polymers such as polydimethyldiallyl ammonium chloride, saponification product of polyacrylonitrile (uniflok) and their interpolymer complex.The selection of polymers as research objects is due to the fact that on the one hand, polydimethyldiallylammonium chloride is a well studied polyelectrolyte and has many practical applications. One of the possible solutions of the problem of the soil erosion can be the use of water-soluble polymers for structuring of the soil surface [3,4,5]. In connection with this study structuration of brown soil with water soluble polymers such as polydimethyldiallyl ammonium chloride, saponification product of polyacrylonitrile (uniflok) and their interpolymer complex. The selection of polymers as research objects is due to the fact that on the one hand, polydimethyldiallylammonium chloride is a well studied polyelectrolyte and has many practical applications. It is an effective flocculant for the water treatment. Uniflock is easy to get from waste products and from widely available polymers

Methods

Results

Conclusion