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  1. Wastewater - Wikipedia

    Wastewater is a generic term that may refer to water containing contaminants originating from various settings. Major categories include: Domestic wastewater, which encompasses sewage produced by …

  2. Wastewater treatment | Process, History, Importance, Systems ...

    Dec 31, 2025 · wastewater treatment, the removal of impurities from wastewater, or sewage, before it reaches aquifers or natural bodies of water such as rivers, lakes, estuaries, and oceans.

  3. Wastewater Pollution: Turning a Critical Problem into Opportunity

    Wastewater introduces a toxic cocktail of contaminants that threaten our food and water security as well as marine species. What’s in wastewater? Pathogens, pharmaceuticals, microplastics, heavy metals, …

  4. U.S. Wastewater Treatment Factsheet - Center for Sustainable Systems

    Wastewater treatment protects human and ecological health from waterborne diseases. Since the early 1970s, effluent water quality has improved at Publicly Owned Treatment Works (POTWs) and other …

  5. Wastewater 101: The Fundamentals - US EPA

    Jun 16, 2025 · Presentation discusses the fundamentals of converting wastewater back to water and how people interact with the hydrologic cycle.

  6. Water Quality and Wastewater

    Across the world, safely reused wastewater is grossly undervalued as a potentially affordable and sustainable source of water, energy, nutrients and other recoverable materials. Untreated …

  7. Wastewater Treatment Water Use | U.S. Geological Survey

    Jun 18, 2018 · Wastewater is used water. It includes substances such as human waste, food scraps, oils, soaps and chemicals. In homes, this includes water from sinks, showers, bathtubs, toilets, …

  8. Wastewater - What Is It? | UNL Water | Nebraska

    Wastewater is broken into two categories, depending upon the source. 1. Gray water: Gray water is from showers, baths, whirlpool tubs, washing machines, dishwashers and sinks other than the kitchen …

  9. Home | Wastewater Digest

    Explore how wastewater utilities can optimize biosolids management through phased planning, advanced digestion, and thermal drying to address rising costs and regulatory challenges...

  10. Wastewater treatment - Wikipedia

    Common processes in wastewater treatment include phase separation, such as sedimentation, various biological and chemical processes, such as oxidation, and polishing.