Term Test 2 - Water Quality Control

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10 Terms

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Total Dissolved Solids

a solid residue that remains in the water after filtration

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Sources of Total Dissolved Solids

Minerals, metals, gases, vegetation decay

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Impacts of Total Dissolved Solids

  • Bad taste/odor/appearance

  • Toxic chemicals

  • Aggressive unsaturated water

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Alkalinity

the quantity of ions in water that will react to neutralize hydrogen ions, or a measure of the ability of water to neutralize acids

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Most common constituents of alkalinity

Bicarbonates, carbonates, hydroxide

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Impacts of alkalinity

Bitter taste, alkalinity + cations in water = precipitate

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Hardness

  • the concentration of multivalent metallic cations

  • the hardness cations will react with anions to form a solid precipitate

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Hardness may be represented by the sum of

calcium and magnesium ions

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Sources of hardness

Calcium, magnesium, iron, manganese

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Impacts of hardness

Boiler scale fouling

Soap scum