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Unique To NAWE
NAWE possesses detailed knowledge of wetland microbiology, plants, hydrology, and ecology. This knowledge coupled with our experience in operations, construction observation, soils, aeration, and hydraulics provides NAWE with a technical foundation in wetland design that is unmatched. With this strong foundation, NAWE confidently applies well accepted engineering principles to provide unique wetland-based solutions. Highlights of NAWE's technological advancements include:
 Forced Bed Aeration™ horizontal and vertical flow wetlands NAWE developed the patented Forced Bed Aeration™ system in 1997. These enhanced wetland treatment systems are capable of overcoming the oxygen transfer limitations of conventional treatment wetlands. Forced Bed Aeration™ wetlands have been successfully used for the treatment of a variety of industrial wastewaters, including landfill leachate, petroleum-contaminated waters, and dairy wastes.
Insulated, cold-climate subsurface flow wetlands NAWE's engineering staff designed the first insulated wetlands in the U.S. and have actively been monitoring temperatures and calculating energy flows in constructed wetlands since 1995. A new design approach is to use subsurface-flow constructed wetlands that are covered with an insulating mulch layer to prevent freezing. Properly designed insulation of the wetland bed is effective in preventing freezing and resulting hydraulic failure.
Recirculating wetland designs NAWE developed a recirculating, vertical-flow wetland process in 1998. These wetlands require only ¼ of the area of a conventional horizontal flow wetland system. NAWE vertical-flow wetlands have been used on dozens of domestic wastewater projects.
Subsurface Flow Modeling NAWE has expertise in numerical modeling of subsurface flow and mass transport processes in both saturated and variably saturated systems. These models are useful in designing engineered wetlands for wastewater/groundwater treatment processes, determining the impact of soil disposal of treated wastewater on groundwater elevations and nutrient concentrations, assessing water supply characteristics of confined aquifers, and optimizing groundwater remediation processes for petroleum hydrocarbons and chlorinated solvents
Tidal flow (flood and drain) wetlands Tidal flow wetlands flood and drain several times per day to treat wastewater to tertiary standards. NAWE has license to several tidal flow wetland patents and has top tidal flow wetland design expertise on staff. NAWE is applying this technology to projects as part of our ongoing commitment to excellence in innovation to find better solutions for your wastewater problems.
Living Machine® Living Machine® systems are a family of advanced ecologically engineered systems for wastewater treatment. Each system is designed to fit the needs of a given application, but given their aesthetic appeal, reliable performance, and high quality final effluent, Living Machine® systems are a natural fit when high architectural design standards are key project goals.
Soil Absorption Commonly referred to as drainfields, soil absorption systems have grown in size and sophistication in recent years and are widely used for residential "cluster" developments. NAWE has extensive knowledge in the proper use of soil disposal systems and stand alone in innovating soil absorption systems for cold climates.
Engineered Lagoons North American Wetland Engineering, LLC is at the forefront of designing engineered lagoon systems and actively promotes the use of innovative equipment and design approaches. Coupling engineered lagoons with NAWE's patented wetland systems has been essential in broadening the application of wetland technology worldwide.
Sludge Dewatering Beds Effective management of sludge is key to keeping operating costs low. Reed beds have been shown to provide a simple, long-term solution for the dewatering and treatment of sludge.
Cold-climate drip irrigation NAWE developed the first design guidelines for drip irrigation systems that are capable of operating in frozen soil environments. Since that time, we have conducted numerous studies on in-situ temperatures and energy flows in subsurface drip irrigation systems.
Life-cycle forecasting Through our partnership with EcoCheck, Inc., we have hands-on experience in operating decentralized wastewater systems. We have developed detailed tools for forecasting construction, operation, regulatory, maintenance, repair and replacement costs that can help residential, municipal or industrial customers.
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