Dynasand Filter

Uninterrupted operation
Uninterrupted operation provides several benefits over conventional backwashing sand filters. In conventional sand filters particles are collected in the sand bed with increasing pressure drop as a result, until finally the sand must be cleaned by backwashing before treatment can proceed. The time between backwashes can be very short, which reduces the effective operating time. It was not until the continuous sand filter technology of DynaSand was developed that it was possible to get an optimal solution to the need for continuous water and waste water treatment process while delivering a constant quality of the filtrate even at a high surface load.

Strengths

DynaSand improves the process
• no first filtrate – always high-quality clean filtrate
• simple treatment of wash water, no shock loads
• handles high levels of suspended particles without requiring pre-treatment
• low pressure drop
• low energy consumption
• low monitoring and maintenance costs
• no need to stop for backwashing
• small footprint

DynaSand simplifies the system
• no need for backwashing pumps
• no tank for rinsing water
• no collection tanks for rinsing water
• no need of automatic valves for backwashing
• no blowers for purge air
• no nozzles with risk of clogging the filters
• only one filter medium
• system is simple to construct and maintain
• simple expansion for biological treatment