Sand Filter

Sand filtration is used for the removal of suspended matter, as well as floating and sinkable particles. The wastewater flows vertically through a fine bed of sand and/or gravel. Particles are removed by way of absorption or physical encapsulation. If there is excessive pressure loss on the filter, it must be rinsed.

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.

We are sand filters manufacturers, suppliers and dealers. Utilizing the superior raw materials and advanced technology, these filters are manufactured by our dynamic team. With the latest technique, we are keeping a constantly upgraded facility that allows larger productivity of the filters.


  • Various floating particles can be removed.
  • Deferrisationdemagnisation and ammonia can be removed.
  • Reduction of protozoa and bacteria.
  • Easy to operate and low maintenance requirements.
  • Effective removal and long lifetime.


  • Preparation of cooling water
  • Treatment of waste water
  • Production of drinking water
  • Filtration in swimming pools
  • Pre filtration for membrane systems
  • Filtration of grey or surface water