Quartz Sand Use in Hydraulic and Sanitary Engineering

Medical Research and Sanitary Engineering

Aerosol Filtration Using Quartz Sand Filter

The cement industry is the major source of cement dust which contains heavy metals like nickel, cobalt, lead, chromium, arsenic and hazardous substances like dioxins and furans. Exposure to these substances can cause health problems to human, animals and vegetation. A continuous pilot scale quartz sand filter was constructed and uses to study the effect of important design parameters (temperatu...

Doctoral Program in Sanitary - Environmental Engineering

Introduction “Although many people are concerned about the status of the environment, environmental engineers are the technical professionals who provide safe drinking water, treat and properly dispose of wastes, maintain air quality, control water pollution, and remediate sites contaminated due to spills of improper disposal of hazardous substances. They monitor the quality of the air, water, ...

Patterns in hydraulic binary size sand grain ripples

An experimental study of a sand bed submitted to a transient water shear flow in a vertical axis cylindrical container is reported. The appearance of spontaneous phase segregation in the spiral ripple patterns is shown. Larger grains are observed to segregate on the downstream part of the ripples, while the smaller ones segregate on the upstream part. The relative repose angles between sand spe...

Some Observations on Electron Micrographs of Quartz Sand Grains

Electron micrographs of sand grains from southern Piedmont saprolites, temperate and polar glacial deposits, and the St. Peter Sandstone are presented. Sand-grain surface features of saprolite grains are described for the first time and from these some concept of the initial surface of a quartz sand grain is obtained. Micrographs of the sand grains from glacial deposits whose erosional history ...