Properties of fine technogenic sediments and their effect on channel process and self-purification of river water

Abstract

The role of fine sediments of technogenic origin in channel process is analyzed. The specific fea tures of sedimentation of particles with different density and shape and the issues of flocculation and consol idation of sediments in the bottom part of flow are discussed. Experimental data on the adhesion of particles are given and a relationship for its assessment is proposed. The class of sediments for which the adhesion determines the critical erosion velocity is determined. The processes of river water self purification and pre cipitation of fine sediments were compared to show that sedimentation processes play an important role in river water self purification.

Features of Hydraulic and Hydro-Technological Research Conducted at the Laboratory of Hydromechanics and Hydraulics

“…Орехов и Л.В. Волгина[16][17][18][19][20]. Выполняют исследования по темам кандидатских диссертаций заведующая лабораторией гидромеханики и гидравлики Т.В.…”

Integrated approach to industrial sewage water treatment - a way of water resources rational use and protection

“…In addition to the main objective -determination of optimal conditions for sludge formation -another point of interest was the use of neutralization potentiometric titration method for identification of the content values and conversion of the water permanent hardness components [10,11,13].…”