WASTEWATER MIXING RESOURCES

• Memorial Park Pump Station, Tauranga City Council

  The Memorial Park Pump Station (MPPS) transfers wastewater flows from Memorial Park to Chapel Street WWTP and/or Te Maunga WWTP. It is a large pump station (PS) installed within a 9.0m diameter concrete structure. The pump station is approximately 12m deep, with a 6.5m maximum water depth and split into several compartments.

• Mixing Made Easy For Low Energy Lakes, Ponds, And Lagoons

  Landlocked, shallow bodies of water such as recreational ponds, irrigation, drinking water and animal waste lagoons have a major problem with flow. The only natural methods of movement in these bodies of water are the slight Coriolis Effect of the earth and wind. Neither of these natural mixing sources is sufficient to allow shallow water bodies to respire and deal with the natural biological degradation of wastes and detritus that eventually form on the bottom. Eventually, external problems will occur – algae begins to form in abundance, odors will emanate from the water due to stagnation, blue-green cyanobacteria will form on the surface and cause more odor and toxicity, and eventually the water is no longer capable of supporting basic aquatic fauna reproduction.

• Colorado Springs Chose AquaDDM® Mixers Over Submersible Directional Mixers For Optimum Anoxic Mixing

  To help meet the stringent water quality standards for denitrification, the Colorado Springs wastewater treatment facility has employed (20) 7.5 hp AquaDDM mixers.

• A More Reliable, More Efficient Aerator – Tomball, TX WWTP

  ​In 2013, operators of the Tomball, Texas Wastewater Treatment Plant were facing increasing maintenance issues with three brush aerators operating in the plant's two-channel oxidation ditch. The aerator failures were threatening to compromise effluent quality and environmental compliance. Tomball needed replacements.​

• The Science Of Mixing And Improving Water Quality In Water Storage Tanks

  Water storage tanks and reservoirs are a critical component of distribution systems, yet they can pose a significant challenge for water utilities as they often have a negative impact on water quality. Water quality problems can develop due to low turnover and/or inadequate mixing resulting in short-circuiting. While the benefits of maximizing tank turnover to minimize water age are generally understood, it is only recently that extensive research on mixing characteristics of storage tanks has been undertaken that has provided insight on what causes water quality problems and expertise in designing inlet/outlet pipe configurations, or mixing systems, to achieve complete mixing and maintain water quality.

• Energy-Saving Solution With Flygt Compact, Low-Energy Mixers Yields Big Savings

  The Madison Metropolitan Sewerage District (MMSD) manages regional wastewater service for the Madison, Wisconsin area, providing wastewater collection and treatment for 43 municipal customers including cities, villages, and utility and sanitary districts.

• Tornado Aerators At Chicago O’Hare Wastewater Treatment Reservoir

  The Chicago area is served by a combined sewer network that carries both raw sewage and storm water.

• Activating The Sludge In Small Municipal Facultative Waste Lagoon Systems

  Wastewater treatment lagoons were originally facultative in design — shallow, single and multi-cell lagoon systems that counted on wind, sunlight, anaerobic bacteria, and time for the digestion of the organic components of the wastewater.

• Mixers Prevent Buildup And Reduce Wetwell Cleaning Charges

  The City of Reno, NV, has long battled the buildup of fats, oils, and grease in the wetwells of wastewater lift stations in the valleys within this high desert city. Recently, the city set out to address the problem and reduce the associated costs.

• Mixers Clear FOG And Reduce Operating Costs By More Than 80%

  The Cypress Creek WWTP in Florence, AL, uses an extended aeration activated sludge process with a design capacity of 20 million gallons per day (MGD). Cypress Creek serves mostly residential customers, but about 15 percent of its influent comes from industrial sources, and their discharge to the plant contains large amounts of fats, oils, and grease (FOG).