Engineering guides to water treatment, wastewater, equipment operation and regulations.
What dairy and cheese-making wastewater consists of, what a grease trap retains and what passes it, and which stages make up a treatment line.
September 2026 · 7 min→Wastewater · Engineering · UtilitiesLandfill leachate: what a field test of a sorption bed showedAmmonium nitrogen fell by almost three quarters in one hour of contact. How the bed works, how the test was run, and why contact time matters more than composition.
September 2026 · 6 min→Wastewater · Residential · EngineeringSeptic tank retrofit: turning an existing tank into biological treatmentWhen a concrete or plastic septic tank can be kept and fitted with an aerated zone with circulation instead of being replaced, and where this approach reaches its limit.
September 2026 · 7 min→Wastewater · Engineering · UtilitiesWhere a treatment plant's electricity goes: aeration and ways to reduce its shareWhy blowers take up most of a biological plant's power bill, where excess air comes from, and which measures remove it — from the oxygen set point to ammonia-based control.
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→Wastewater · Residential · EngineeringHow a deep biological treatment plant works: zones inside the tankWhat happens to wastewater between the inlet and the outlet, why a zone without oxygen is needed, and why ammonium is removed by bacteria, not by a filter.
July 2026 · 7 min→