|
Enviroquip’s MBR Coupled with the SymBio® Process
for Ultimate Nutrient Removal
Enviroquip is pleased to offer its latest membrane bioreactor
(MBR) technology utilizing flat-plate microfiltration membranes
manufactured by Kubota, Japan. Since 1989, more than a thousand
wastewater treatment plants worldwide have successfully utilized
this cost-effective and reliable technology to consistently
produce water that exceeds most reuse quality standard.
Designed specifically for wastewater applications, the flat-plate
configuration allows gravity operation, which reduces operating
cost and simplifies system control. With improved design and
process innovations, space and power requirements have been
significantly reduced. For applications within United States,
Enviroquip has coupled its proprietary SymBio® technology
for simultaneous nitrification and denitrification with the
MBR technology. This combination is proposed for plants designed
to meet stringent nutrient removal requirements such as 8.0
ppm TN and less than 0.1 ppm TP. Low total nitrogen levels
are achieved by using simultaneous nitrification and denitrification
concept in conjunction with the conventional recycle concept
to a pre-anoxic basin from the MBR. Supplemental carbon can
be added to the pre-anoxic or to the SymBio basin for complete
denitrification. P removal is achieved by chemical precipitation
in the MBR.
The SymBio® process monitors the NADH (nicotinamide adenine
dinucleotide) levels in the biomass along with dissolved oxygen
levels in the water to indicate the changing biological oxygen
demand very precisely. Based on the results, the aeration is
controlled to maintain low dissolved oxygen (< 1.0 ppm)
for simultaneous nitrification and denitrification in the same
basin. This award winning technology has been utilized successfully
all over the world by the wastewater treatment industry.
The SymBio MBR combination offers the following advantages
to the treatment operators:
- TN < 8.0 ppm and TP < 0.1 ppm
- Small footprint (Total
plant HRT <= 8.0 hours)
- Low DO operation in the SymBio
basin plus low internal recycle saves energy
- Real-time
biological activity information from NADH sensor with minimal
maintenance
|
