FNR
- Principle of FNR technology
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- · Bio-reaction process arrangement composed of anoxic tank, aerobic tank, and ferrous electrolytic device
- · Removal of organic matters and nitrogen by biological nitrification/ denitrification through anoxic and aerobic processes
- · Sewage treatment technology to remove phosphorus by ferrous ions generated from the ferrous electrolytic tank
- Principle of FNR construction method
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- It is a video of FNR which is the sewage treatment technology.
- Principle of nitrogen removal
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- Principle of phosphorus removal
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- Features of technology (Advantages and appropriateness of technology)
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- · Flow water is directly used as an organic carbon source required for denitrification (MLE process)
- · Proactively responding to T-P to strengthen the standards for water quality of effluents
- · Excellent efficiency of T-P removal regardless of load variations of water quality and changes of temperature
- · Minimization of scale generation on the cathode surface by applying an electrode switching method
- · The electrolysis reaction does not affect the growth of nitrifying microorganisms.
- · Replacement cycle of ferrous electrode : 2 ~ 3 years
- · Existing contact oxidation tank → Anoxic tank, improvement of aerobic tank process, no additional land
- · More excellent efficiency of nitrogen removal than the process with anaerobic process
