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  2. State Farm Center - Wikipedia

    en.wikipedia.org/wiki/State_Farm_Center

    The third largest Illinois arena after the United Center in Chicago and the Allstate Arena in Rosemont, State Farm Center has 15,544 permanent seats but, when portable chairs are placed on the floor for an in-the-round performance, there is a potential for an additional 1,000 depending on the stage configuration.

  3. 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 ).

  4. Construction of Assembly Hall (Champaign) - Wikipedia

    en.wikipedia.org/wiki/Construction_of_Assembly...

    The construction of State Farm Center, originally known as the Assembly Hall, at the University of Illinois at Urbana–Champaign consisted of building a huge indoor arena with a 400-foot-diameter (120 m) concrete dome whose center height is 125 feet (38 m) above the center floor, and which weighs 10 million pounds. [1]

  5. Water aeration - Wikipedia

    en.wikipedia.org/wiki/Water_aeration

    Coarse bubble aeration is a type of subsurface aeration wherein air is pumped from an on-shore air compressor. [ 6 ] through a hose to a unit placed at the bottom of the water body. The unit expels coarse bubbles (more than 2mm in diameter), [ 7 ] which release oxygen when they come into contact with the water, which also contributes to a ...

  6. Aerated lagoon - Wikipedia

    en.wikipedia.org/wiki/Aerated_lagoon

    An aerated lagoon (or aerated pond) is a simple wastewater treatment system consisting of a pond with artificial aeration to promote the biological oxidation of wastewaters. [1] [2] [3] [4]

  7. Evaporation pond - Wikipedia

    en.wikipedia.org/wiki/Evaporation_pond

    Each pond liner is prone to leakage and requires regular maintenance. [2] The contents of the evaporation pond depend on the use, the evaporation pond will contain water and the desired contents hoping to be extracted. The desired contents range from waste to minerals, and the remaining contents are either stored or extracted. [2]

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