01/22/2014

A Platinum Solution for Sewage

The Center for Health and Healing treats 100% of its blackwater

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  • /Portals/1/images/Magazines/2014/0214/B_0214_Blackwater5.jpg

    Photo Credit: TEC

  • /Portals/1/images/Magazines/2014/0214/B_0214_Blackwater6.jpg

    Photo Credit: TEC

Built in 2005, the Center for Health and Healing was designed with water conservation in mind. In addition to a 50% reduction in potable water needs, Oregon Health & Science University stipulated that the Portland-based project had to treat 100% of its sewage as well.

To achieve these goals, Interface Engineering installed a membrane bioreactor that can process up to 35,000 gallons of water per day, or an average of 1,600 daily users. The system is located on the third floor of an underground parking garage.

Treated water is combined with rainwater and reused for toilet flushing, cooling tower makeup in the central utility plant, and irrigation. While the 400,000-square-foot facility includes a mix of tenants, reclaimed water is only used in core office areas to avoid complications with medical and lab processes.

The waste treatment plant processes an average of 23,000 gallons daily or roughly 161,000 gallons each week, according to a 2011 post-occupancy report. The system is so efficient that only 1,500 gallons of sludge need to be disposed of on a weekly basis – less than 1% of the total collected blackwater.

The MBR joins a host of other efficiency strategies, such as low-flow fixtures, rainwater harvesting, a green roof, groundwater infiltration, and a bioswale. This is notable because the building’s aggressive focus on water conservation was an instrumental part of earning double Platinum for LEED NC in 2007 and LEED EBOM in 2011, notes Jim Gleason, a partner of Treatment Equipment Company, which supplied the bioreactor.

The center’s water features qualified for credits under alternative sewage treatment, water efficiency exceeding a 30% reduction, and innovation for water use reduction beyond 50%.

The building is currently experiencing a 49% reduction in potable water use over a building of a similar design, or roughly 5.5 million gallons a year (MGY). Given all of the water efficiency strategies, the site actually reclaims water far beyond its reuse needs and sends an estimated 50 MGY of groundwater and reclaimed wastewater into the local waterways.

While the center cost over $100 million, the membrane bioreactor only added $950,000. A $50,000 tax incentive was also secured for the system.

As of 2011, the building uses 5.7 MGY for potable water and 5.5 MGY for non-potable purposes, paying $15,000 for drinkable water annually and over $11,600 in sewer costs. With an annual cost savings of $27,000, the system has an estimated payback of less than 10 years.

 


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Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

 

Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.

 

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