high speed surface aerator Articles

  • CFD predicitons in large mechanically aerated lagoons

     ABSTRACT Optimization of the design and operation of large (>500,000 m3) mechanically aerated wastewater treatment lagoons (known as Aerated Stabilization Basins or ASBs) requires a thorough understanding of both the hydraulic and biological processes within the treatment volume. Complex three-dimensional flows existing within these lagoons are difficult to quantify by measurement ...

  • Cheese manufacturer gets aeration upgrade - Case Study

    Largest Cheese Manufacturer in the UK Gets Aeration Upgrade Dairy Crest Davidstow Creamery in Camelford is the largest cheddar cheese manufacturer in the UK. The process of collecting and processing milk is a 24/7 operation, generating effluent round the clock and needing to be treated and disposed of continuously. Effluent from the cheese-making process contains high fat content and ...

  • CFD predicitons in large mechanically aerated lagoons

    Optimization of the design and operation of large (>500,000 m3) mechanically aerated wastewater treatment lagoons (known as Aerated Stabilization Basins or ASBs) requires a thorough understanding of both the hydraulic and biological processes within the treatment volume. Complex three-dimensional flows existing within these lagoons are difficult to quantify by measurement or simplified analyses, ...

  • Pulp and paper mill aerated lagoon phosphorus optimization

    The Domtar (formerly Weyerhaeuser) Kamloops, BC bleached Kraft pulp mill discharges treated process wastewater to the Thompson River. The River and downstream Kamloops Lake have historically been identified as nutrient sensitive, with phosphorus contributing to algal growth. The BC Ministry of the Environment required that the mill perform a phosphorus optimization study to minimize phosphorus ...

  • What are the parameters of an extended-aeration activated-sludge system?

    The activated sludge process is the most widely used biological water and wastewater treatment. As is well known, by its means, suspended-growth microorganisms are applied to breakdown wastes. Aeration, the mixing of air and a liquid, is the means used to speed the reactions involved. Aeration methods include spraying the liquid into the air; diffusing air into the liquid or agitating the liquid ...


  • Supplemental Aeration Nearly Eliminates Filamentous Sludge Bulking in Dubai

    Overview The Dubai Investments Park Wastewater Treatment plant in the United Arab Emirates faced challenges in their oxidation ditch due to filamentous sludge bulking, resulting in poor sludge settling in the secondary clarifier. Challenges The oxidation ditch is treating an average of 2.64 MGD (10,000 m3/day) of wastewater, composed of seventy ...

  • Supplemental aeration nearly eliminates filamentous sludge bulking - Case Study

    The Dubai Investments Park Wastewater Treatment plant in the United Arab Emirates faced challenges in their oxidation ditch due to filamentous sludge bulking, resulting in poor sludge settling in the secondary clarifier. Supplemental aeration was needed to eliminate the filamentous sludge bulking. Challenge: ...

  • 5 Must Do Steps to Keep Your Jet Aeration System Running Smoothly

    Sustained low dissolved oxygen levels in an aeration tank can cause a host of problems — including difficulties in maintaining soluble BOD (biochemical oxygen demand), reduced nitrogen removal efficiency, and challenges with biomass separation. A jet aeration system offers a solution, utilizing both a pump and blower to meet the oxygen transfer requirements of a biological process. A well ...


    By KLa Systems, Inc.

  • Mission accomplished: plant and aeration upgrades to meet growth and lower energy use - Case Study

    In 2003 this Minnesota city began the process of upgrading its lagoon-based wastewater treatment facility (WWTF) into a new mechanical treatment facility. Nine years and two construction phases later, the city now has a fully operational facility and has upgraded its aeration system to lower energy and maintenance costs. Treatment Process The wastewater ...

  • Since 1984, mill reduces sludge, increases winter performance

    An over-all improvement in the basin’s flow pattern is evident . Problem This southern pulp and board mill faced the problem of an aging aeration system in its wastewater treatment lagoon. Maintenance was getting prohibitive on the 50 hp (37 kW) & 100 hp (75 kW) slow speed surface aerators, totaling 1,200 hp. 'New slow speed aerators were very expensive and maintenance was ...

  • Designed for generations - Case Study

    South Dakota facility retrofits advanced process control system Nearly 25 years ago, the consulting engineering firm Banner & Associate, Inc. designed an efficient wastewater treatment facility for a city in S.D. that featured process control, flexibility and treatment efficiency while minimizing operating and maintenance costs. Key to the system was the ...

  • Aire-O2 Triton Solves Bulking Problem

    The Dubai Investments Park (DIP) wastewater treatment plant (WWTP) is located about 20 miles south of the Burj Khalifa – the world’s tallest building. The oxidation ditch activated sludge plant recently found itself strained by filamentous sludge bulking likely caused by high organic loads, high summer temperatures and inevitable low dissolved ...

  • Triton solves bulk of the problem case study

    The Dubai Investments Park (DIP) wastewater treatment plant (WWTP) is located about 20 miles south of the Burj Khalifa – the world’s tallest building. The oxidation ditch activated sludge plant recently found itself strained by filamentous sludge bulking likely caused by high organic loads, high summer temperatures and inevitable low dissolved oxygen. The problem was easily ...

  • Cost-efficient ditch provides a sustainable solution - Case Study

    City needed a system that would weather the Upper Peninsula’s harsh winters This Wastewater Treatment Plant in Michigan sits on the shores of rugged and picturesque Lake Superior in the state’s Upper Peninsula. When the city needed to replace an aging system, they chose ...

  • Mixers and Flowmakers: Mixers at Bremen-Seehausen WWTP

    Treatment of 50 million cubic meters of wastewater per year - find more information on their website. Landia has a total of 26 submersible mixers operating at this plant. 10 mixers in the denitrification (BNR = biological nutrient removal) process, 6 of them in the denitrification tanks, 4 of them in effluent channels leading to these tanks for mixing of ...


    By Landia

  • Is Water RunOff Effecting my Pond?

    What is Water RunOff? Runoff is precipitation that did not get (infiltrated) absorbed into the soil, or did not evaporate, and therefore made its way from the ground surface into places that water collect. Runoff causes erosion, and also carry chemicals and substances on the ground surface along to the ponds, lakes and rivers where the water ends up. ( ...


    By Keeton Industries, Inc.

  • Happy Customers, Healthy Business

    As the wastewater treatment industry becomes more competitive, customer service gives businesses the chance to rise above their competitors. Customer service is key in all industries. The water treatment industry is no exception. As the treatment of both drinking water and wastewater becomes a continually more competitive industry, with an ever-growing number of new companies offering ...

  • A breath of nothing is decisive: AERZEN Turbo blowers with air bearings provide clear advantages compared to blowers with magnetic bearings

    Aeration tanks for wastewater treatment must be continuously provided with large air volumes. Turbo blowers offer here energy-efficient solutions. AERZEN has developed an amazingly simple method for the fast-rotating Turbo blowers - air bearings. The construction of AERZEN Turbo blowers is quite simple: A blade wheel, aerodynamically optimised and located directly on the motor shaft, rotates in ...

  • Acid mine drainage treatment

    Acid mine/rock drainage is a rampant problem in the world today. The above photo depicts acid drainage at an abandoned mine in the Yukon Territory of northwest Canada. This mine shares a similar history to thousands of other mines throughout the world. It was in operation for six short years in the 1950’s, producing gold ore. Its profitability eventually failed and it was abandoned. In the ...


    By WesTech Engineering, Inc.

  • What is decentralized treatment?

    Why is decentralized treatment an important solution for global water scarcity challenges? As the climate shifts and water supplies shrink due to increased use by municipalities, agriculture, and industry, the need for effective and efficient water and wastewater treatment in remote locations is growing exponentially all over the globe. In addition, the energy to power these plants and ...


    By Fluence Corporation

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