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  2. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Groundwater: The water emerging from some deep ground water may have fallen as rain many tens, hundreds, or thousands of years ago. Soil and rock layers naturally filter the ground water to a high degree of clarity and often, it does not require additional treatment besides adding chlorine or chloramines as secondary disinfectants.

  3. Solar still - Wikipedia

    en.wikipedia.org/wiki/Solar_still

    In a solar still, impure water is contained outside the collector, where it is evaporated by sunlight shining through a transparent collector. The pure water vapour condenses on the cool inside surface and drips into a tank. Distillation replicates the way nature makes rain. The sun's energy heats water to the point of evaporation.

  4. Kugelrohr - Wikipedia

    en.wikipedia.org/wiki/Kugelrohr

    A simple short path vacuum distillation apparatus can be used for bulb-to-bulb distillation. 1: Still pot with stirrer bar/anti-bumping granules 2: Cold finger - Condenser with maximum surface to condense most of the vapour. 3: Cooling water outlet 4: cooling water inlet 5: Vacuum Adapter 6: Receiving Flask.

  5. List of wastewater treatment technologies - Wikipedia

    en.wikipedia.org/wiki/List_of_wastewater...

    Oil–water separator; Organisms used in water purification; Parallel plate oil–water separator; Photobioreactor; Reed bed; Regenerative thermal oxidizer; Retention basin; Reverse osmosis; Rotating biological contactor; Sand filter; Screen filter; Sedimentation (water treatment) Septic tank; Septic tank conversion [2] Sequencing batch reactor ...

  6. Groundwater remediation - Wikipedia

    en.wikipedia.org/wiki/Groundwater_remediation

    Groundwater remediation is the process that is used to treat polluted groundwater by removing the pollutants or converting them into harmless products. Groundwater is water present below the ground surface that saturates the pore space in the subsurface.

  7. Reverse osmosis plant - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis_plant

    Reverse osmosis is a common process to purify or desalinate contaminated water by forcing water through a membrane. Water produced by reverse osmosis may be used for a variety of purposes, including desalination , wastewater treatment , concentration of contaminants, and the reclamation of dissolved minerals. [ 1 ]