Engineering guides to water treatment, wastewater, equipment operation and regulations.
Why biofilm is the most stubborn of all reverse osmosis and ultrafiltration foulants, which data reveal it, how a cleaning sequence is built and what prevents the film from coming back.
September 2026 · 6 min→Membranes · Engineering · SizingPFAS in water: what "forever chemicals" are and which methods really remove themWhy fluorinated organic compounds pass through conventional treatment, how the European Union has limited them in drinking water, and how adsorption, ion exchange and membranes differ when compared honestly.
September 2026 · 6 min→Engineering · MembranesElectrodeionisation: high-purity water without chemical regenerationHow an EDI module differs from a resin filter, why it is installed only after reverse osmosis, and what that demands of the feed water.
July 2026 · 7 min→Engineering · Pretreatment · MembranesMembrane pretreatment: why reverse osmosis dies in six monthsWhat actually kills a membrane element, which stage is to blame, and the signs that pretreatment is no longer keeping up.
July 2026 · 7 min→Sizing · Membranes · EngineeringReverse osmosis: sizing by salt content and outputWhy the salt content, not the flow rate, sets the unit range, what permeate recovery is, and where the concentrate goes.
July 2026 · 8 min→Sizing · MembranesUltrafiltration vs reverse osmosis: where the line runsWhat each membrane retains, why ultrafiltration leaves dissolved salts untouched, and where the two are put in series.
July 2026 · 7 min→