Lower the Silt Density Index before RO filters

[sonckerr]

Have any of you had any success in lowering the Silt Density Index (SDI) of your water with chemical injections, such as coagulants or dispersants, before it enters the Reverse Osmosis (RO) filters? We've tried one company, but we had no luck. We've also modified the filters to various sizes, but still, no luck. Any recommendations or alternatives? It's cutting the life of our RO filters in half.

Thanks for any feedback!

 

[bimr]

Without the details of your system, it is difficult to propose a specific solution.

I have seen inline filtration systems effectively reduce the SDI. A power plant in Texas with a surface water source is using a 2 stage multimedia filter system to effective remove the suspended solids prior to RO. An inline multimedia filter with polymer is used as a roughing filter and the roughing filter is followed by a multimedia polishing filter.

 

[arguellesmanuel]

It is important to know the values ??obtained from SDI, however, it is important to know that the filtration process is nearly always the most appropriate, as long as the design is in tune with the consumption of water per day.

If your water usage is very high compared to the specifications of your filters will always have problems with your water quality.

Greetings.
Manuel Arguelles
VENEZUELA