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2. Water aeration - Wikipedia

   en.wikipedia.org/wiki/Water_aeration

   The effectiveness of a surface aerator is limited to a small area as they are unable to add circulation or oxygen to much more than a 3-metre radius. This circulation and oxygenating is then limited to the uppermost portion of the water column, often leaving the bottom portions unaffected. Low speed surface aerators can also be installed on floats.

3. Emergency evacuation - Wikipedia

   en.wikipedia.org/wiki/Emergency_evacuation

   An emergency evacuation kit is a container of food, clothing, water, and other supplies that can be used to sustain an individual during lag time. Lag time is the period between the actual occurrence of an emergency and when organized help becomes available, generally 72 hours, [ citation needed ] though this can vary from a few hours to ...

4. Deaerator - Wikipedia

   en.wikipedia.org/wiki/Deaerator

   A deaerator plant. A deaerator is a device that is used for the removal of dissolved gases like oxygen from a liquid.. Thermal deaerators are commonly used to remove dissolved gases in feedwater for steam-generating boilers.

5. Jet aerators - Wikipedia

   en.wikipedia.org/wiki/Jet_aerators

   Jet aerators are easily configured into any basin geometry including circular, rectangular, looped reactors and sloped wall basins. Jet aerators are ideally suited for deep tank processes. The jet oxidation ditch is an example of technology innovation where the combination of a deeper basin design, bottom to top mixing and conservation of ...

6. Lawn aerator - Wikipedia

   en.wikipedia.org/wiki/Lawn_aerator

   A lawn aerator is a garden tool designed to create holes in the soil in order to help lawn grasses grow. [1] In compacted lawns, aeration improves soil drainage and encourages worms , microfauna and microflora which require oxygen .

7. Sink - Wikipedia

   en.wikipedia.org/wiki/Sink

   A sink/basin in a bathroom Enamel washbowl and jug Sink in Croatian National Theater in Zagreb, Croatia. A sink (also known as basin in the UK) is a bowl-shaped plumbing fixture for washing hands, dishwashing, and other purposes.