WASTEWATER AERATION & BLOWERS WHITE PAPERS AND CASE STUDIES

Air Diffusion System Helps Francesville’s With New Aeration System
Air Diffusion System Helps Francesville’s With New Aeration System

In 2012, the Town of Francesville in Indiana contacted Air Diffusion Systems to provide a solution for several suspended solids violations and energy efficient treatment. Air Diffusion Systems was able to provide an unique solution to correct biochemical oxygen demand (BOD) and total suspended solids (TSS) problems using Kaeser Compressors’ CB Com-paK blowers. Additionally, the ammonia removal has also proven successful even though there is no limit yet.

Activated Sludge Treatment In A Municipal Sewage Treatment Plant
Activated Sludge Treatment In A Municipal Sewage Treatment Plant

A design/build contractor needed a quiet, efficient aeration system for a 250,000 GPD field erected WWTP that was to be located adjacent to a school. A restriction on ambient noise at the location of the proposed WWTP required a quiet aeration process. Read the full case study to discover how Mazzei solved the problem.

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WASTEWATER AERATION PRODUCTS

BIOSTYR® Biological Aerated Filter BIOSTYR® Biological Aerated Filter

BIOSTYR® is a simple and innovative process, which carries out effective biological treatment of residual water at minimum operating cost. Highly compact, BIOSTYR® combines (in a single structure), the biological reactor that degrades pollution and the phase separation that removes the matter transformed by purification.

1600 Series For Fats, Oils, Greases, Phosphorus, Chlorines and Other Chemicals 1600 Series For Fats, Oils, Greases, Phosphorus, Chlorines and Other Chemicals

Designed with the dairy market in mind, the Dampier membrane is optimized to withstand long-term exposure to fats, oils, greases, phosphorus, chlorines and other readily present chemicals. Its silicone elastomers possess inherently low intermolecular forces, providing excellent resistance to hot and cold temperatures. Our Dampier membranes are hydrophobic, and do not react with the unique chemicals present in dairy wastewater. Heat stable (up to 365°F) and flexible at low temperatures, these custom formulated membranes provide durable, chemically-correct solutions for dairy wastewater treatment.

1700 Series For The Petro-Chemical Market 1700 Series For The Petro-Chemical Market

Mainsail Global’s Boone diffuser membranes are designed for the petro-chemical market with hydrogenated acrylonitrile-butadiene rubber (HNBR). These custom membranes are built for durability, and can withstand long-term exposure to heat, oil and chemicals readily present in petro-chemical wastewater streams. With excellent tensile strength, abrasion and ozone resistance and higher modulus retention at elevated temperatures, Boone membranes combine the physical strength and chemical makeup of HNBR for an ideal solution in petro-chemical wastewater treatment.

Sub-Surface Aeration: Aspirator Sub-Surface Aeration: Aspirator
The Aspirator transfers oxygen from the water’s surface into the water column through a venturi tube, creating no surface spray. (Available in floating Triton and subsurface Sub-Triton configurations.)
OxyMix<sup>®</sup> Pure Oxygen Mixer For Efficient Oxygen Transfer OxyMix® Pure Oxygen Mixer For Efficient Oxygen Transfer

Since 1969, Aqua-Aerobic Systems, Inc. has led the industry in surface aeration and mixing with thousands of installed units throughout the world. For those wastewater applications that require an efficient means of introducing oxygen into a system, the OxyMix pure oxygen mixer is an economical solution compared to other pure oxygen devices.

PMSL‘s Talon™ - Low Speed Surface Aerator PMSL‘s Talon™ - Low Speed Surface Aerator
Capable of continuously providing the horizontal velocity required in ditch applications, it also ensures the biological components of the ditch received the oxygen required to treat the bio-solids
OxyStream&trade; Oxidation Ditch OxyStream™ Oxidation Ditch

The OxyStream™ Oxidation Ditch from WesTech Engineering has proven to be the ideal equipment for biological wastewater treatment applications throughout the world. It combines vertically mounted, low-speed surface aerators with an oxidation ditch design to maximize oxygen transfer efficiency while maintaining the greatest flexibility for power turndown. In addition, the OxyStream™ has greater side water depths and fewer required aerators than a conventional brush rotor or disc rotor oxidation ditch. The vertical slow-speed surface aerator eliminates maintenance-prone horizontal shafts, pillow block bearings, and drive units near the water surface. Above all, the OxyStream™ Oxidation Ditch provides energy savings and produces predictable, high-quality effluent.

Delta Hybrid Rotary Lobe Compressor Delta Hybrid Rotary Lobe Compressor

The groundbreaking Delta Hybrid Rotary Lobe Compressor is the result of a synergy between the rotary lobe blower and the screw compressor technologies and offers completely new possibilities by combining the technical advantages of both concepts.

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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

Energy-Efficient System Design for WWTPs Energy-Efficient System Design for WWTPs

Energy is a huge portion of a wastewater treatment plant’s operating costs, with aeration blowers a significant user. System splitting with an adaptive master controller reduces electrical, maintenance, and initial investment costs.

Aeration Efficiencies Found With Automated Controls Aeration Efficiencies Found With Automated Controls

With a variety of blower combinations available to optimize aeration performance at wastewater treatment plants, efficiencies are now being found by focusing in on aeration control systems. Eric Bennett, Controls Product Manager with Aerzen, recently discussed the advantages operators are finding by deploying the company's AERProcess solution in managing energy use, optimizing biological processes and reducing wear and tear on blowers and valves.

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.

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WASTEWATER AERATION & BLOWERS NEWS

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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.