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Discharge Consent System>Overview The process for generating electricity is simple: a boiler fired by natural gas burns fuel and air and water is converted to steam. The steam, under great pressure drives turbines generating electricity. Steam is condensed by thermal exchange with cooling tower water, then repumped to the boiler to repeat the process. The heated water during this thermal exchange step is cooled by evaporation in cooling towers, producing the vapour clouds seen often at power generation facilities. There are three types of cooling water systems:
One issue regarding each of these cooling water systems is that various contaminants may enter the cooling water. If cooling water is discharged from the power plant to either treatment works or to a surface water, then water pollution control regulatory requirements may be applicable to your power plant.
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