| periphyton | Periphyton: The Unsung Heroes (and Some… | Waste Management |
| peristaltic pump | Peristaltic Pumps: A Powerful Force in … | Wastewater Treatm… |
| Perma-buoy | Perma-Buoys: A Sustainable Solution for… | Wastewater Treatm… |
| Permachem | Permachem: Ensuring Reliable and Sustai… | Water Purification |
| permafrost | Permafrost: A Frozen Threat in Environm… | Climate Change Mi… |
| Permaglas | Permaglas: A Durable Solution for Water… | Water Purification |
| Permaklip | Permaklip: Securing Filter Press Belts … | Wastewater Treatm… |
| Permalife | Permalife: A Durable Solution for Envir… | Wastewater Treatm… |
| permanent hardness | Understanding Permanent Hardness in Wat… | Water Purification |
| permanent threshold shift (PTS) | The Silent Threat: Permanent Threshold … | Environmental Hea… |
| Permasep | Permasep: A Legacy in Waste Management … | Water Purification |
| permeability | Permeability: The Key to Effective Wate… | Water Purification |
| permeate | Permeate: The Heart of Membrane Filtrat… | Water Purification |
| permeator | Permeation: A Key Player in Waste Manag… | Air Quality Manag… |
| PermeOx | PermeOx: A Powerful Tool for Sustainabl… | Waste Management |
| permissible dose | Permissible Dose: A Balancing Act in Wa… | Environmental Hea… |
| permissible exposure limit (PEL) | Keeping Workers Safe: Understanding Per… | Environmental Hea… |
| Permofilter | Permofilter: A Powerful Tool for Waste … | Wastewater Treatm… |
| Permujet | The Permujet: A Reliable Solution for W… | Water Purification |
| Permupak | Permupak: A Versatile Solution for Envi… | Water Purification |
