WASTEWATER AERATION & BLOWERS WHITE PAPERS AND CASE STUDIES

BIOSTYR® Improves Health Of The Long Island Sound
BIOSTYR® Improves Health Of The Long Island Sound

The New Rochelle Wastewater Treatment Plant is located in the Westchester County, New York, discharging to the Long Island Sound. It serves a population base of 65,000 people and is permitted to treat average flows of up to 20.6 MGD. Operating with primary clarification and pure oxygen-based activated sludge treatment since a 1979 upgrade, the plant only removed BOD and TSS from the wastewater.

  • MABR Is The Big Cheese For This Dairy Farming WWTP
    MABR Is The Big Cheese For This Dairy Farming WWTP

    Hayogev is a residential development in the rural area of Jezreel Valley, with 1000 homes, agricultural fields and dairy farms. Located in an open field next to small farms, the local treatment facility handles wastewater from HaYogev and Midrach Oz. The customer was looking for a localized wastewater treatment solution to replace the existing pond system, which faced difficulties in treating the wastewater due to high levels of nutrients. A new state-level regulation concerning reclaimed water required the wastewater treatment plant (WWTP) operator to reduce the nutrients in the effluent stream. The solution had to be odorless and quiet, have low power consumption, and use the existing pond and structure.

  • Aeration System Prevents Septic Conditions
    Aeration System Prevents Septic Conditions

    Circa 2010, Carollo Engineering designed and implemented expansions at wastewater treatment plants in Delano, California and Reedley, California to handle increased flows of up to 8.8 MGD and 5.0 MGD respectively. The proposals for both facilities specified a need for storage and processing of secondary sludge produced by the processes’ secondary clarifiers. Mazzei Injectors were selected to provide an efficient, zero maintenance method of freshening and mixing the sludge. Read the full case study to learn more.

  • Optimizing Chemical Dosing Reduces Chemical Use While Meeting Effluent TP Limits
    Optimizing Chemical Dosing Reduces Chemical Use While Meeting Effluent TP Limits

    The city of Black River Falls in Wisconsin used chemical treatment with ferric chloride (FeCl3) to achieve their effluent total phosphorus (TP) permit of 1.0 mg/l. Historically, the chemical dosing rate was manually adjusted on a daily basis based on the measured effluent TP concentration. The plant was upgraded with an OSCAR process performance optimizer control system with phosphorus controller, which uses continuous measurement of orthophosphate. Read the full case study to learn more.

  • Do More With Less: Integrating Nutrient Removal Control Improves Treatment Capacity And Efficiency
    Do More With Less: Integrating Nutrient Removal Control Improves Treatment Capacity And Efficiency

    Wastewater treatment plants (WWTP) are facing many challenges. Permits on nitrogen and phosphorus in the effluent water are progressively becoming stricter in order to protect surface waters from eutrophication. At the same time, plants are required to reduce both energy and chemical consumption and are often challenged with limited time and staff. In total, they are required to do more with less. In order to meet these challenges, a plant with a Sequencing Batch Reactor (SBR) in Green Lake, Wisconsin was upgraded with an advanced process control system – the OSCAR process performance optimizer with NURO controller.

  • The Proper Application Of Rotary Lobe And Rotary Screw Blower Technology
    The Proper Application Of Rotary Lobe And Rotary Screw Blower Technology

    Written by Kaeser’s system experts, this whitepaper compares rotary lobe and screw blowers, isochoric and isentropic compression, and how to properly apply these technologies for designing an energy efficient system.

  • Packaged Wastewater Treatment For Uneven Terrain
    Packaged Wastewater Treatment For Uneven Terrain

    Storey County, NV, just southeast of Reno, needed to replace an outdated wastewater treatment plant that serves the historic communities of Virginia City and Gold Hill. The new site was on the side of a hill, presenting challenges for the design of the plant and the orientation of its processes. Also, the new plant area was entirely within a district on the National Register of Historic Places. Read the full case study to learn how the new modular design allows for an efficient wastewater treatment solution.

Blower System Integration For Wastewater Aeration Applications
Blower System Integration For Wastewater Aeration Applications

The overall wastewater treatment process is complex, and each step is integral to ensuring water is properly purified. Effluent ends up in the plants, containing substances that must be removed before the water can be properly cleaned and returned for use. The range of potential contaminants is almost endless, and can include food, pulp, waste, or other substances. Afterwards, the water requires further scrubbing, with the aid of bacteria. It is in this part of the process that compressed air (ideally provided by energy-efficient rotary lobe blowers) plays a vital role.

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WASTEWATER AERATION PRODUCTS

VariOx™ Jet Aeration VariOx™ Jet Aeration

The VariOx™ jet aeration system is an aeration and mixing device used in numerous water and wastewater treatment applications. Jet aeration combines many of the benefits and efficiencies of both mechanical and diffused air type systems. The jet aerator consists of an inner liquid nozzle and an outer air nozzle. Liquid from the basin is re-circulated through a jet motive pump and discharged through the inner liquid nozzle at a high velocity. Concurrently, air is fed into the outer air nozzle where it is mixed with the motive liquid and discharged as a high energy jet plume.

SmartAerator™ TORNADO® SmartAerator™ TORNADO®

Complete energy saving aeration solution for municipal and industrial wastewater treatment. The SmartAerator provides up to 50% annual energy savings for wastewater treatment facilities. Ideal projects are those that require large horsepower aerators and projects with multiple aerators where energy savings would be significant.

KLa Systems Slot Injector Aeration System KLa Systems Slot Injector Aeration System

The Slot Injector™ System is a superior jet aeration system that is specifically applied to industrial biological treatment processes where fine screening is a standard pretreatment operation in both conventional and advanced air activated sludge applications.

Industrial Mixing and Aeration Industrial Mixing and Aeration
Applicable industries: Power Plants • Refineries • Chemical Plants • Mining
Cyclix™ Anaerobic Digester Mixing Control System Cyclix™ Anaerobic Digester Mixing Control System

The Cyclix™ system is a controls package that can be utilized with a JetMix™ hydraulic  mixing system to optimize operational time and reduce energy costs. The system consists of a control panel with a programmable logic controller (PLC) and temperature sensors that monitor temperature within the reactor to dictate when the mixing system should be operated.

Complete Com-paK™ Blower Packages Complete Com-paK™ Blower Packages

The Com-paK is uniquely designed to minimize space requirements and reduce installation costs.

Sanitaire Gold Series Membrane Diffusers by Xylem Sanitaire Gold Series Membrane Diffusers by Xylem

Sanitaire’s new Gold Series membrane diffusers have been designed to deliver superior energy efficiency. In fact testing indicates that Gold Series diffusers can lower energy consumption by 20% over conventional fine bubble systems, and will yield even greater savings over other aeration technologies.

Get 20% off all Sanitaire replacement diffuser orders for a limited time. Register NOW for your discount today!

Otterbine Fractional Series Aerating Fountain & Mixer Line Otterbine Fractional Series Aerating Fountain & Mixer Line

Otterbine’s 1/2HP Fractional Series Aerating Fountain and Mixer line includes 4 spray patterns and a horizontal mixer – the only unit like it on the market today!

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WASTEWATER AERATION & BLOWERS PODCASTS

RWL Water Projects Run The Gamut RWL Water Projects Run The Gamut

Discussing the projects that RWL Water has been involved with in 2016, you understand just how variable the world of water treatment really is.

Three Largest Challenges With Wastewater Lagoons Three Largest Challenges With Wastewater Lagoons

When it comes to wastewater lagoons, there are three main challenges that operators run into. The first, similar to other parts of the nation’s wastewater treatment infrastructure, is age. The second is compliance with new EPA ammonia, nitrogen and phosphorus limits which many lagoon plants weren’t designed to deal with. And the third is expansion as communities grow and need additional capacity.

Enhanced Primary Treatment Reduces Energy By Separating BOD Before Aeration Enhanced Primary Treatment Reduces Energy By Separating BOD Before Aeration

At WEFTEC 2016, Evoqua Water Technologies explored six core challenges faced by wastewater treatment plants -- energy reduction, nutrient removal, odor and corrosion control, aging plant equipment, water reuse and disinfection. In this Water Online Radio interview, Paul Rice, Municipal Marketing Director with Evoqua Water Technologies, discusses energy reduction and nutrient removal in more detail.

Energy Efficiency Boosted By Replacing Controls Not Blowers Energy Efficiency Boosted By Replacing Controls Not Blowers

At the wastewater treatment facility, the biggest energy consumer is almost always the multistage aeration blowers. Replacing these blowers with high speed turbo blowers can save energy but the short-term cost to replace the existing blowers, reroute pipe and set new foundations can make the change a hard sell.

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WASTEWATER AERATION VIDEOS

Atlas Copco Supports Aquafin With Their Total Cost Of Ownership Approach Atlas Copco Supports Aquafin With Their Total Cost Of Ownership Approach

Find out the importance of total cost of ownership in wastewater treatment applications and how Atlas Copco supports this approach.

Fluence Offers A Revolution In The Economics Of Wastewater Treatment For Reuse Fluence Offers A Revolution In The Economics Of Wastewater Treatment For Reuse

Fluence’s Membrane Aerated Biofilm Reactor (MABR) technology is an innovative wastewater treatment solution which saves up to 90 percent energy consumption. It is the ideal solution for decentralized applications such as rural villages, housing developments, municipalities, hotels, resorts, and golf courses.

Fluence Is Changing The Economics And Accessibility Of Wastewater Treatment Fluence Is Changing The Economics And Accessibility Of Wastewater Treatment

Surrounded by agricultural fields where water is a vital resource, the rural region of Hayogev, Israel chose Fluence’s energy-efficient Membrane Aerated Biofilm Reactor (MABR) solution for wastewater treatment suitable for reuse.

GDT For Rapid Ozone Mass Transfer & Degassing GDT For Rapid Ozone Mass Transfer & Degassing

Mazzei’s GDT process delivers rapid and efficient ozone mass transfer under pressurized contacting conditions resulting in greater gas solubility.  Additional mixing and rapid gas bubble removal is provided by the system’s degas separator.  With high operational flexibility and low capital, installation and operating costs ― and all within a compact footprint ― the GDT mixing and contacting system is the best solution.

Basin Nozzle Manifold For Wastewater Aeration Basin Nozzle Manifold For Wastewater Aeration

Mazzei’s wastewater basin aeration system thoroughly agitates bulk water and mixes ambient air or pure O2 into the wastewater.  Utilizing in-house CFD modeling, Mazzei systems are designed to ensure efficient mixing and aeration. Unlike blowers, Mazzei aeration is virtually silent, and requires little to no maintenance.

Lagoon Wastewater Aeration Lagoon Wastewater Aeration

Mazzei’s lagoon aeration system is an efficient, low cost, quiet solution for wastewater problems. Optimally designed subsurface nozzles provide better mixing and agitating of wastewater than surface aerators.  Treatment efficiency increases as lagoon depth increases―no matter how deep―and the  system is easy to install and provides trouble-free operation. 

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ABOUT AERATION

 

A common first step in the secondary treatment process is to send wastewater to an aeration tank. In an aeration tank, bacterium is used to effectively break down pollutants into less harmful components. Wastewater aeration provides the appropriate oxygen level so that aerobic bacteria can thrive in degrading pollutants such as iron and manganese as part of the wastewater treatment process. Aeration can also be used to destroy anaerobic bacteria that perish in the presence of oxygen. Aerobes that can break down pollutants 10-100 times faster than anaerobes are used most frequently.

Aeration is also used to improve waste lagoons and other waterways such as lakes and reservoirs where oxygen deficiency contributes to taste, odor and pollutant problems. Equipment used for wastewater aeration includes low cascades, jet fountains, spray nozzles, blowers, submerged perforated pipe and porous plates or tubes. Whether the water is thrown into the air via a fountain or diffused by air bubbles being blown or drawn into the wastewater in an aeration tank, aeration works by increasing the area of contact between the oxygen in the air and water.

The most common wastewater aeration process in use today is the air diffusion process, where air is introduced from blowers through diffusion tubes suspended in a spiral flow tank, or in some cases, through diffuser plates in the bottom of the aeration tanks.