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Anammox Process- Energy Saving Biological Nitrogen Removal Technology
Anaerobic ammonia oxidation (Anammox) process is a novel biological
nitrogen removal technology. Nitrite is
an electron acceptor and ammonium is oxidized to nitrogen gas through Anammox biochemical reaction. The doubling time of Anammox bacteria is about 7-10 days, thus
seeding source, reactor design and operation conditions are important factors
for applying Anammox process for nitrogen removal.
NH4++ 1.32 NO2-+
0.066 HCO3- +
0.13 H+ →
1.02 N2+ 0.26 NO3-+
0.066 CH2O0.5N0.15 + 2.03 H2O
According to the reaction, oxygen
consumption of Anammox process is about 1/3 of A/O process, it
is an energy saving nitrogen removal process.
Applications
- Low carbon-high ammonia nitrogen wastewater, such as petrochemical and high tech industries
- Reject water of municipal WWTP
-
Advanced
nitrogen removal process
Features
- Molecular biological analysis for nitrogen removal bacteria
- Seeding source of Anammox bacteria
- Fast start-up (1 kg N/m3-d within 3 months)
-
Reactor design and optimum
operation
Patents
- TW I386347,I522322,I527727
- US 8,057,673
- CN ZL201210580420.2
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Enriched Anammox bacteria |
