Hi Tony Those metals are in ...

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Hi Tony

Those metals are in form of nanoparticles they could be filtered by MF. (if they cant be treated chemically either by pH Correction or coagulation or oxidation. If you are talking about nanoparticles or small particles, I would assume that they are oxides or carbonates or may be sulphite or sulphate... Anyhow for MF/UF  the first point is to know the particle size distribution to ensure what pore size range to choose from. (The worst case scenario would be to have a membrane pore size distribution matching the particle size distribution. for nanoparticles depending on concentration/volume to treated I would look into hollow fibres or ceramics, But more information are required in terms of pH free chlorine concentration and desired concentration ratio to achieve volume/flow rate othe contaminants...

Last year we worked on a MF project looking at removing Ba Sr Al Ca oxide/hydroxide by MF when we got the data it worked very well. We could look in doing some trials if you need to investigate this further. Please feel free to contact me direct.

Gerald