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| Contaminants
in septic |
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| systems: Nitrogen |
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| z | Most nitrogen in
wastewater in the form |
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| of organic
nitrogen and ammonia (NH3) |
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| z | Changed
to nitrate (NO3) under aerobic |
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| conditions. NO3
moves easily to ground |
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| water |
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| z | Can
denitrify (change to N2 gas) under |
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| anaerobic
conditions if organic carbon |
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| present |
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