Frequently Asked Questions

Does ordinary filtration remove dissolved salts?

Usually not. Screens and granular, bag or cartridge filters primarily address suspended material. Dissolved ions generally require processes such as ion exchange, nanofiltration, reverse osmosis or other appropriate treatment.

What is the difference between ultrafiltration and reverse osmosis?

UF is primarily a barrier for fine suspended/colloidal material and selected microorganisms, while RO is a much tighter membrane process used for dissolved salts and many other dissolved contaminants.

Does a water reuse system always need reverse osmosis?

No. Treatment should be matched to the source water and intended reuse quality. Some applications need far less treatment; others may need multiple advanced barriers.

Does side-stream filtration replace cooling-water chemistry control?

No. It can remove suspended solids and organics, but dissolved-solids, corrosion and microbiological issues may require separate treatment and controls.

Does this site provide chemical dose settings?

No. Chemical treatment and dosing are deliberately kept conceptual.