Active Filter

Depending on volume to be processed and the ongoing timeframe there are filter materials and systems readily available.

We have recently commissioned a water treatment facility and there were multiple options for exclsion level for the cartridges, with air scour backwash to clean the membranes and so on.

If you look up "Membrane filtration" (There are some options here on CR4) you will find many options with different flow throughputs and with the selectivity that you describe.

To protect the membranes though, you might want to install a more coarse filter in front.

Alternativey, if the particles are "organic" there may be options in activated carbon, depending whether you need a physical barrier (Membrane) or not.

The difference in density is important. Centrifugation may be an option.

Any idea on quantities and flowrates that could be shared?

The TOTAL amount of fluid would amount to no more than 200ml and the flow rate would be gravity assist with a small amount of pressure say 0.5 bar. This really needs a small filter not a large capacity unit, and the filters need to be removable to be able to examine the different deposits on the different graduations

Ok,

We use units for checking water quality with "paper" filters clamped between holders and then fitted into the top of a conical flask.

To assist the filtration rate, the flask is connected to a small vacuum pump.

If you search for "labware" or "Glass labware" you should get some contacts.

When talking nano >20 is the clamp system satifactory regarding leakage ?

The filter material is around 75mm diameter with an exposed opening of around 20mm.

I'm not in the lab so cannot comment beyond the fact that they are using it in preparation of samples (removal of contaminants) before conducting assay testing for disolved materials.

If the "Cole Palmer" group is still operational, then they may be able to give you more targeted information. (That's the mob that I used in the past for the lab that I was managing.)