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Feb 9, 2006 -
Dynatec Systems, Inc.
has designed and built a wastewater treatment system for the “green”
Helena Building project in Manhattan, New York City. The Dynatec system
will purify up to 50,000 gallons of water per day for reuse, reducing
city water consumption by 50% and significantly decreasing the amount
of wastewater discharged to the city sewer system. The recycled water
will be used in the HVAC system and for irrigation.
The Dynatec-designed wastewater treatment system uses a Membrane
Bioreactor (MBR), a relatively new wastewater treatment technology that
combines biological treatment with membrane separation to efficiently
produce high-quality water that is free from pathogens and other
undesirable contaminants. The highly automated system can be monitored
remotely with minimal operator involvement.
MBRs
provide exceptional treatment efficiency with a reduced footprint
compared to conventional treatment processes and are especially
well-suited for situations in which water recycling is required or
desired. MBRs use an activated sludge process in which the secondary
clarifier is replaced with a membrane separation process (either
microfiltration or ultrafiltration). Due to the presence of an absolute
barrier for suspended solids, MBRs are able to maintain very high
solids concentrations (8,000 to 20,000 mg/L) and solids retention times
that allow for smaller aeration basins and high biological oxygen
demand (BOD) removals. Since the MBR effluent is microfiltration or
ultrafiltration permeate, suspended solids in the outflow are typically
below the detection limit and turbidities are typically less than 0.1
NTU.
The Helena Building project is 38-floor,
600-unit residential tower that is a model for resource efficiency,
environmental balance, and green construction. A silver ranking from
the LEED (Leadership in Energy and Environmental Design) program was a
central focus for the project team that was headed the Durst
Organization and included general contractor Kreisler Borg Florman
General Construction Company, Fox and Fowle Architects, structural
engineer Severud Associates, and mechanical engineer Flack+Kurtz.
The
project incorporates process and design innovation in indoor
environmental quality, energy efficiency, water conservation, and
materials. The “green” features of the Helena Building have proven to
be a primary attraction for the tenants of this modern luxury high rise.
To learn more about membrane bioreactor wastewater treatment technology contact Dynatec Systems Inc.
Contacts.
Dynatec Systems Inc.
909 Jacksonville Road
Burlington, NJ 08016
609-387-0330 voice
609-397-2060 fax
www.dynatecsystems.com |
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