Silica Sand for the water filtration What do you know about filter sand and gravel At first, we need to know where the idea of using sand and gravel in filtering process came from? The idea of filtering water to obtain clean drinking water dates back to the Pharaonic Era, i.e. 4000 BC, where researchers found traces of a sand filter in Alexandria dating back to the year 50AD. This filter was used to filter water to obtain safe drinking water. Since then, the idea of using sand filters to treat surface water came to light, with the purpose of purifying such water to obtain safe drinking water. At the beginning of the application of the theory of filtering by sand and gravel, slow sand filters were designed, where they were used extensively in England and Scotland. This was followed by the expanded use of slow sand filters about fifty years later in the United States of America. In 1880, Patrick Clark developed the slow sand filter, increased the filtering rate and reduced the area of land used to construct filters in the United States of America, in particular the State of New Jersey. Developed sand filters with high filtering rates were called Rapid Sand Filters. Such filters were of great benefit in case of not using treatment by chemical clarification, which is followed by the sedimentation process. After that, several types of filters were invented, as they were classified according to filtering rates, operating methods, direction of water flow and method of controlling the sedimentation process. That's where the research started to know how to choose the filtering medium for filters, as many kinds of natural materials were used as a filtering medium, including: Silica Sand Anthracite Coal Granet Ilmenite â?»After several experiments, it was found out that the first type, i.e. silica sand, is the most commonly used type in Egypt and it was brought from sand quarries, as it was found out that silica sand is cheap compared to other types and there are large quantities in Egypt. When taking a sample of sand or gravel from any area in the quarry, we notice that it contains grains of different diameters. In order to find out the percentage of components of sand sample on the basis of diameters, we use a set of sieves placed over each other to pass a specific weight of sand and know the weights of sand with different diameters in each sieve, in order to indicate the percentage of weights of sand grains with different diameters. This process is known as (testing sand grains by sieves). We will address this topic in detail in the next article, God willing.
Silica Sand Egyptian Origin Natural Yellow Silica Sand for Water Filtration Sand EN and AWWA Size 0.50mm-1mm Key attributes Industry-specific attributes SiO2 Content (%) 98.75 Fe2O3 Content (%) 0.311 Al2O3 Content (%) 0.46 MgO Content (%) 0.01 CaO Content (%) 0.01 P2O5 Content (%) 0.01 Other attributes Place of Origin Egypt Brand Name Silica Sand water filtration, 5-7-20201912 Model Number E-5-7-20201912 Type Silica Quartz Application Glass Grade Silica Oxide Micro Fine -400 Size All Size Available Organic Materials Free Gradation Well Processing High color off white Radiation free heavy metals free nature natural not crushed Reserve Enough Reserve specific Gravity 2.50-2.80 Packaging and delivery Packaging Details -bulk in vessel 2-pp big bags of 1250 kg -1500 kg 3-in 20 feet container,load 25-27 tons 4-number of bags in 20 feet 19-20 bags Port Egyptian Port Supply Ability Supply Ability 9000 Metric Ton/Metric Tons per Month
Hot Selling Fumed Silica Powder Hydrophobic Material Fertilizantes Agricolas Key attributes Industry-specific attributes SiO2 Content (%) 99.9% Fe2O3 Content (%) 0.005% Al2O3 Content (%) 0.01% MgO Content (%) 0.01ppm CaO Content (%) 1ppm~5ppm P2O5 Content (%) 0.0002% Other attributes Place of Origin Egypt Brand Name Custom Model Number Silica Flour-001 Type Silica Powder Application Ferroalloys Grade Silica Ultra Fine-500 Packaging and delivery Packaging Details As Per Customers Requirements Port Cairo Supply Ability Supply Ability 1000 Ton/Tons per Month
High quality and purity white silica sand wholesaler in new delhi Egypt ready stock available wholesaler manufacturer Key attributes Industry-specific attributes SiO2 Content (%) 99.9% Fe2O3 Content (%) 0.015% Al2O3 Content (%) 0.01% MgO Content (%) 0.01ppm CaO Content (%) 1ppm~5ppm P2O5 Content (%) 0.0002% Other attributes Place of Origin Egypt Brand Name silica Model Number Silica -001 Type Silica Powder Application Ferroalloys Grade Silica Ultra Fine-500 Silica silica Packaging and delivery Packaging Details As Per Customers Requirements Port Egyption Ports Supply Ability Supply Ability 7000 Ton/Tons per Month
Natural Process Yellow Silica Sand According To EN12904 and AWWA Standard Silica Sand For Water Filtration Key attributes Industry-specific attributes SiO2 Content (%) 98.75 Fe2O3 Content (%) 0.311 Al2O3 Content (%) 0.46 MgO Content (%) 0.01 CaO Content (%) 0.01 P2O5 Content (%) 0.01 Other attributes Place of Origin Egypt Brand Name Silica Sand water filtration, 5-7-2020 Model Number E-5-7-2020 Type Silica Quartz Application Glass Grade Silica Oxide Micro Fine -400 Size All Size Available Organic Materials Free Gradation Well Processing High color off white Radiation free heavy metals free nature natural not crushed Reserve Enough Reserve specific Gravity 2.50-2.80 Packaging and delivery Packaging Details -bulk in vessel 2-pp big bags of 1250 kg -1500 kg 3-in 20 feet container, load 25-27 tons 4-number of bags in 20 feet 19-20 bags Port Egyptian Port Supply Ability Supply Ability 9000 Metric Ton/Metric Tons per Month
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