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Symbio® Select
Enviroquip, Inc. of Austin, Texas is pleased to introduce
the SymBio® Select process for biological nitrogen removal
for the wastewater treatment industry. Designed for both domestic
sewage and industrial applications, the SymBio® Select
process is based on the proprietary SymBio® process for
simultaneous nitrification and denitrification in a single
reactor using NADH fluorescence monitoring. Developed through
extensive research and field experience, the SymBio® Select
process extends the benefits offered by the original SymBio® process
by incorporating selector technology as shown below:
The SymBio® Select process provides the following advantages
to wastewater treatment plant operators:
- Three zones create
F:M gradient to favor biological selection of floc-forming
bacteria over filamentous microorganisms – better
sludge settling characteristics.
- Pre-anoxic, SymBio® and
Oxic zones with approximate volume ratios of 10:80:10
- ensures
that the maximum volume operates at low DO (< 1.0
mg/l) under SymBio® mode for simultaneous nitrification
and denitrification combined with significant energy
savings compared to conventional treatment methods.
- Low mixed liquor recycle rate, usually less than
100% - further reduces the energy consumption.
- Total
effluent nitrogen below 5.0 mg/l.
- Final oxic zone reduces
ammonia below 1.0 mg/l and introduces positive DO in water
before discharge into secondary
clarifiers – avoids
septic situations.
- Flexibility of bypassing pre-anoxic
zone or converting it into anaerobic stage for biological phosphorous removal.
- Pre-anoxic and the SymBio® zones usually monitored with
on-line NADH sensors for automatic operation – provides
real-time information on biomass health, influent
toxicity and the system’s oxygen demand.
to SymBio® Elite |
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