Aquasust MBBR19 Introduction:
| ·Size: Φ25*12mm Hole Numbers:19 | ·Material: 100% White Virgin HDPE |
| ·Weight: 95KG/CBM | ·Densilty: 0.96-0.98g/cm3 |
| ·Surface Area: >650m2/m3 | ·Packing Numbers: >118000pcs/m3 |
| ·Porosity: >85% | ·Dosing Ratio: 15-65% |
| ·Membrane-Forming Time: 3-15days | ·Nitrification Efficiency : 400-1200gNH4 N/M3.d |
| ·BOD5 Efficiency: 2000-10000g BOD5/M3.d | ·COD5 Efficiency: 2000-15000 gCOD5/M3.d |
| ·Applicable Temperature: 5-60℃ | ·Life-Span: >15year |
Denitrification Background Information In order to carry out denitrification of a wastewater flow (removal of the nitrogen from the wastewater), it is necessary to first nitrify the wastewater, that is, convert the ammonia nitrogen typically present in the influent wastewater to nitrate. Nitrification will only take place at a reasonable rate in an MBBR reactor if the BOD level is quite low. Thus, an MBBR denitrification process will need a reactor for BOD removal, one for nitrification, and one for denitrification. The nitrification reactor will always follow the BOD removal reactor, because of the need for a low BOD level in the nitrification reactor. The denitrification reactor may be either before the BOD removal reactor (called pre-anoxic denitrification) or after the nitrification reactor (called post-anoxic denitrification). Flow diagrams for these two denitrification options are shown in the figure below.
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2. ANAEROBIC-ANOXIC-OXIC PROCESS
3.OXIDATION DITCH-MBBR PROCESS
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