A Dual Media Filter, also known as a sand-anthracite filter, is a technology that is used by many types of water treatment plants to make contaminated water pure. Its key features are its simple design and multiple layers of filters. Its two parts are the pressure vessel that has a multiport valve and grade beds consisting of anthracite and sand.
It is mainly used for treating water that is heavily contaminated with various impurities such as suspended solids, iron, or turbidity. It is typically used in the pre-treatment part of the R.O. and desalination processes. It is also required for effective swimming pool water treatment. The key quality here is the filter’s ability to catch a large volume of impurities present in water due to its many layers of filters, which have different levels of pores.
This Aqua Systems Technology dual media filter is most effective for environments that are in need of efficient turbidity and TSS removal. It is easy to install, operate, and maintain and consumes very little electricity to carry out its functions. It is a very cost-effective system for water purification, one that gives high-quality clean water. In situations where the water that needs to be used has suspended solids up to 10 to 20 microns, nothing is more effective in treating it than a Dual Media Filter.
A team of qualified and experienced TECHNICIAN is always on it’s toes to provide any technical services to the customers round the clock. This ensures the utmost satisfaction of each customer, therefore an unbeaten faith of their in AST. A vision to make water treatment as the most sophisticated, scientific and competitive business, AST is thriving to excel. With matchless quality of products, committed delivery schedule, prompt services and customer friendly attitude, AST has achieved the exponential growth in short span of time. Pursuing highest standards and passing through stringent stage wise quality checks; AST produces a product that can optimize customer’s production. Products of high quality standards.
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Dual Media Filter also called as mechanical filter is composed of deep-bed system with multi layers of media in the tank. The major media to be applied in the system of sand and anthracite. The lightest and coarsest material is located at the top layer of bed for the removal of the largest suspended particles, while the heaviest and finest one is located at the bottom layer of bed to remove smaller one present in the source water.
The sand usually acts as a form of chemical treatment that, when in contact with soluble iron in water, reduced the iron from the soluble form to an insoluble form that will precipitate out of solution. The anthracite then can filter both the precipitated iron out of the solution as well as other entrained particles that have entered the water source. The combination of anthracite and sand together can remove a majority of suspended particles greater than 10 microns in size. After treatment, the SDI (Silt Density Index) is reduced and the turbidity reaches less than 3 from 20. The systems require backwashing to remove the accumulated contamination of suspended particles and rinsed by down flow clean filtered water before use in order to extend bed life.
Dual Media Filtration is widely used in the water pre-treatment, which available with Automatic and/or manual operational features. The tank material fiber glass reinforced plastic and stainless steel & Mild steel.
