bottom aerator Articles

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • 100 Simple Ways To Save Water

    To improve water conservation install a rain sensor, it turns off your irrigation when it rains. Use a weather-based controller. The use of smart controllers can reduce water usage 24% a year on average. Learn about available rebate programs ...


    By Jain Irrigation, Inc

  • The role of aeration in water features

    In warm weather, the surface of your lovely water feature sucdenly develops a green, slimy mass which looks as if it may begin to pulsate, eave the water, and threaten the surrounding countryside, like the monstrous entity in some early Steve McQueen B movie Your instinct may be to use extreme measures - the chemical equivalent of calling in the National Guard for a tactical nuclear strike. ...


    By EP Aeration

  • Wastewater lagoons – a new aeration concept

    The use of wastewater treatment lagoons, or stabilization ponds, is a common practice for rural municipalities and industrial facilities. Through the years there have been numerous designs for these ‘sludge settling basins,’ ranging from facultative, partial aerated, and fully aerated systems. But the primary reason for these systems is to utilize relatively shallow earthen ponds, or ...


    By Reliant Water Technologies

  • Slowhill Copse UK Aerators - Case Study

    Slowhill Copse Marchwood WTW (Southampton, Hampshire) was originally constructed in the 1960's. The latest upgrade includes an improvement of the existing treatment process to meet the newest requirements. Landustrie supplied sixteen (4 per aeration lane) low speed surface aerators, type Landy-7 complete with drive units, bottom baffles and foundation plates. The Landy aerators dimension ...


    By Landustrie Sneek BV

  • Aeration boosts USA’s largest lagoon system

    The city reports, 'The entire aeration system has surpassed all our expectations.' Problem In 1989, a growing population prompted this northwestern USA community to expand the efficiency and capacity of its wastewater treatment facility. The original unaerated lagoon system had been built in 1967 and had worked adequately for many years. But, the system needed additional treatment ...

  • Floating Horizontal Aerators Enhance Eufaula, Alabama Activated Sludge Plant

    The Eufaula, Alabama, wastewater treatment plant (WWTP) is an extended aeration activated sludge facility designed for an average daily flow rate of 2.7 million gallons per day (mgd). Prior to February, 2005 this WWTP used vertical aerators to provide oxygen and mixing in its aerator basins. The plant has two aeration basins, each 1.87 million gallons in volume, which had 160 horsepower (hp) of ...


    By S & N Airoflo, Inc.

  • Optimization of submerged depth of surface aerators for a carrousel oxidation ditch based on large eddy simulation with Smagorinsky model

    This paper is concerned with the simulation and experimental study of hydraulic characteristics in a pilot Carrousel oxidation ditch for the optimization of submerged depth ratio of surface aerators. The simulation was based on the large eddy simulation with the Smagorinsky model, and the velocity was monitored in the ditches with an acoustic Doppler velocimeter method. Comparisons of the ...


    By IWA Publishing

  • Largest lagoon in North America relies on AIRE-O2® TRITON process aerator/mixer

    'The Triton and AIRE-O2® aeration equipment have surpassed all our expectation.' Problem This western USA municipality has a 494 acre (200 ha) lagoon system. They installed 68 AIRE-O2® aspirator aerators in 1989 into its 7 lagoons. Officials were very pleased with the performance efficiency of the system, especially with the challenge of their huge lagoons and severe winters. With a ...

  • Prairie farm rehabilitation administration paper

    The aeration efficiency of two types of aeration devices, air injection and mechanical surface aerators was evaluated in farm dugouts in the Peace River Region of Alberta. The air injection systems were tested using three types of diffusers; open-ended tubing, linear fine bubble diffusers and a membrane diffuser. Our results indicate that without aeration, anoxia can develop in the bottom of ...


    By EP Aeration

  • Kärkölä municipality - rationalisation of Waste water plant

    Situation in the beginning two Brush aerators  capacity is not sufficient during  the peaks Brush aerators demand relatively lot maintenance and are in the end of their working life The flow is not sufficient  part of the sludge lands on the bottom of ring basin Direct feedback connection from the oxygen sensor to the aerator via AC Drive is not ...


    By W-Rix Ltd

  • Taiwan: Water quality key to success in eel farming

    A notable Taiwanese scholar discovered the key to growing eel in Taiwan: good water quality. Only Japan had been capable of raising eel in Asia. He reported, 'The number one source of pond pollution is the bottom of the ponds where animal wastes and left-over feed accummulate and deplete oxygen.' This scholar raises Anguilla japonica eels at his research institute’s 2 hectare farm at stocking ...

  • Mixers and Flowmakers: Flowmakers at the Voreppe WWTP, France

    We have installed 8 flowmakers, type POPL-I, in aeration tanks with bottom aeration – each tank is 9,000 m³. The flowmakers create the specified average velocity of 0.3 m/sec. The sludge is homogenized and sedimentation is prevented. The plant has been in operation since 1994. The units have a total operating time of more than 80,000 ...


    By Landia

  • Mixers and Flowmakers: Flowmakers at the Rugby WWTP, UK

    We have installed 8 flowmakers, type POPL-I, in the aeration tank at the municipal wastewater treatment plant in Rugby Newbold. The flowmakers create the specified velocity in the tanks which are equipped with bottom aeration. At the same time the sludge is homogenized and sedimentation is prevented. The units have operated continuously since 1999. Landia supplied mixers to the sludge tanks in ...


    By Landia

  • Case Study: Turun Kakskerta

    The initial situation The condition of the Kakskerranjärvi Lake has worsened over the past decades, mainly due to nutrients produced by agriculture and housing. The lake has been restored using aeration already since 1987. The Kakskerranjärvi advisory board and protective society decided to improve aeration in the lake. It was verified that the nutrients contained in the basal sediment ...


    By W-Rix Ltd

  • Oxygen, the fix for pond problems

    Aeration of a water feature should have three main considerations. These include preventing thermal stratification, balancing the dissolved oxygen levels throughout the water column from the sludge or benthic layer to the surface and balancing temperature levels throughout the water column. Although oxygen transfer from certain methods may be significant, the greatest amount of oxygenation takes ...


    By EP Aeration

  • Dairy Products

    Problem: This dairy located in Northern California is a major supplier of consumer milk products. The plant had been discharging their wastewater to the local sanitation plant untreated. Due to industrial growth in the area, the sanitation plant could no longer accept the dairy effluent. The dairy, therefore, selected and installed a Sequential Batch Reactor (SBR) system to treat their ...


    By HydroCal Inc.

  • UPM, Jämsänkoski mill

    Wastewater Treatment Plant General Information Water flow, Q                  30 000-35 000 m3/d COD load                         50 -70 t/d Incoming water to Equalization ...


    By W-Rix Ltd

  • Prevent Fish Kill in the Spring

    Pond Deicing Can Help Prevent Fish Kill Keeping the pond open will help keep oxygen in the water, attract water fowl and help prevent fish kills in the spring. The most common cause of fish kills is suffocation due to lack of dissolved oxygen. Most dissolved oxygen is produced by algae and aquatic plants through photosynthesis. A lesser but also important source of oxygen in water ...


    By Keeton Industries, Inc.

  • Canarina DESCAR software · wastewaters · complex organic chemicals industry · commands 6

    In the center of the program window, we will draw and we will calculate the different polluting processes. We can draw using two different planes: parallel to the surface of the water (XY) and perpendicular to the surface of the water (XZ). There is a grid in the XY-plane. The coordinate origin is on the left bottom corner (X=0, Y=0) in XY-planes (parallel to the surface of the water). In ...

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