Engineering guides to water treatment, wastewater, equipment operation and regulations.
How manganese differs from iron, why aeration and a standard filter are not enough, and which units make up a manganese removal scheme.
September 2026 · 7 min→Pretreatment · SizingAeration and iron removal: column versus pipeWhy dissolved iron passes straight through a filter, what aeration does, and how a pressure column differs from an aeration pipe.
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→