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  2. Bentonite - Wikipedia

    en.wikipedia.org/wiki/Bentonite

    Bentonite layers from an ancient deposit of weathered volcanic ash tuff in Wyoming Gray shale and bentonites (Benton Shale; Colorado Springs, Colorado). Bentonite (/ ˈ b ɛ n t ə n aɪ t / BEN-tə-nyte) [1] [2] is an absorbent swelling clay consisting mostly of montmorillonite (a type of smectite) which can either be Na-montmorillonite or Ca-montmorillonite.

  3. Speedex Tractors - Wikipedia

    en.wikipedia.org/wiki/Speedex_Tractors

    Harold was assigned the territory of Ohio and Pennsylvania. In 1935, Pond left to form the Pond tractor company and began producing Speedex walk-behind tractors. [2] Harold Pond developed the Model B Speedex Riding tractor in 1938. Pond set up a head office in the town of Ravenna, in Portage County, Ohio. The Model B would become known as the ...

  4. Sedimentation (water treatment) - Wikipedia

    en.wikipedia.org/wiki/Sedimentation_(water...

    Sedimentation (water treatment) The physical process of sedimentation (the act of depositing sediment) has applications in water treatment, whereby gravity acts to remove suspended solids from water. [1] Solid particles entrained by the turbulence of moving water may be removed naturally by sedimentation in the still water of lakes and oceans.

  5. Tractor Supply Company - Wikipedia

    en.wikipedia.org/wiki/Tractor_Supply_Company

    Tractor Supply Company (also known as TSCO or TSC), founded in 1938, is an American chain that sells products for home improvement, agriculture, lawn and garden maintenance, livestock, equine and pet care. It caters to recreational farmers and ranchers, pet owners, and landowners. The company has 2,250 stores and is headquartered in Brentwood ...

  6. San Francisco Bay Salt Ponds - Wikipedia

    en.wikipedia.org/wiki/San_Francisco_Bay_Salt_Ponds

    The San Francisco Bay Salt Ponds are a roughly 16,500-acre (6,700 ha) part of the San Francisco Bay that have been used as salt evaporation ponds since the California Gold Rush era. Most of the ponds were once wetlands in the cities of Redwood City , Newark , and Hayward , and other parts of the bay.

  7. Waste stabilization pond - Wikipedia

    en.wikipedia.org/wiki/Waste_stabilization_pond

    The system may consist of a single pond or several ponds in a series, each pond playing a different role in the removal of pollutants. After treatment, the effluent may be returned to surface water or reused as irrigation water (or reclaimed water ) if the effluent meets the required effluent standards (e.g. sufficiently low levels of pathogens ).