Part 2: Water Quality Parameters Impacting Generating Station Make-Up Water
By Mike Caravaggio P. Eng.
BOILERS DEIONIZATION DESALINATION GROUNDWATER ION EXCHANGE POWER REVERSE OSMOSIS TDS WASTEWATER WATER SOURCES
Abstract
The first article reviewed make-up water purity requirements needed for fossil power plants. Areas reviewed included sodium, chloride, sulfate, silica, total organic carbon (TOC), conductivity, and dissolved oxygen. Table A in Part 1 listed the typical purity target values as related to each of these constituents found in water. The important point in successful treatment of power station makeup water starts with analysis of incoming raw water. The review begins with an exam of the water sourceï¾—whether it comes from fresh water supplies, desalinated ocean water, groundwater, municipal water, or wastewater. Issues to review include turbidity, biological activity/organics, mineral content, hardness, and chlorine levels (in municipal supplies).
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