MileZagros’s Sand filter is one of the oldest and most common methods of water treatment that is used to remove suspended particles in the water with a size of more than 100 microns. Cheap price, efficiency and long life are among the positive features that have made sand filter water treatment widely used in domestic and industrial applications. Here are the types of sand filters, work routines, advantages and disadvantages, and everything you need to know about the price of sand filters.

Water treatment in nature is done in various ways, one of the most important of which is the removal of waste products from the water by passing it through a sand bed. In designing and manufacturing sand filters, this nature-inspired behavior is less costly than other water treatment methods such as ultrafiltration and Nano filtration to remove suspended particles in water. Sand filters are actually a type of tank that has an inlet and an outlet valve and nozzles with sand and silica coating. Particles suspended in water will not pass through the filter and nozzle covered with sand grains, and eventually the water outlet will be clean and purified.

The body of sand filters is made of different materials, the most common of which are metal, fiberglass and concrete bodies. The metal bodies of this equipment are made of galvanized sheets and the type of concrete that is mostly used for high capacity refineries is made of concrete and is very strong. Fiberglass filters are made from pressed composites and are also known as FRP sand filters.

The wastewater flows vertically through a fine bed of sand and/or gravel. … Air bubbles are blown into the sand bed to make it swirl around. Filtered water then flows through the filter bed in the opposite direction.

A distinction can be made between continuous and discontinuous filters. In continuous filters (often upward-flowing filters), the polluted sand is removed, rinsed and re-used continuously, without interrupting the filtration process. Discontinuous filters (often downward-flowing filters) are stopped, and a rinse takes place in the opposite direction. Air bubbles are blown into the sand bed to make it swirl around. Filtered water then flows through the filter bed in the opposite direction. The polluted matter is released and flows away along with the rinse water. The filtration process can then resume.

The yield of a sand filter is determined by two sand filter functions, namely surface filtration and depth filtration. Surface filtration involves collecting the particles above the filter bed. These particles jointly form a macro-porous lump, which is able to collect new particles in a very effective manner. Depth filtration generally involves smaller particles that are more difficult to collect, and which are bound to the sand particles by adsorption.  Dirt from surface filtration is easier to remove during reverse rinsing compared to dirt from depth filtration.

Sand Filters are generally the most compact and more affordable way to filter an in-ground or above ground pool. Basically, the way a sand filter works is that inside the sand filters use specially designed rough shaped pool filter sand that removes the dirt and debris that runs through your filtration system.

There are three main types; rapid (gravity) sand filters, upward flow sand filters and slow sand filters. All three methods are used extensively in the water industry throughout the world. The first two require the use of flocculants chemicals to work effectively while slow sand filters can produce very high quality water with pathogens removal from 90% to >99% (depending on the strains), taste and odour without the need for chemical aids. Sand filters can, apart from being used in water treatment plants, be used for water purification in singular households as they use materials which are available for most people.