WASTEWATER TREATMENT

Savings Helps MABRs Gain Traction In Municipalities
Savings Helps MABRs Gain Traction In Municipalities

An MABR is essentially a biological wastewater treatment process that utilizes seemingly passive aeration through oxygen-permeable membranes. Oxygen transfer through the MABR membranes is diffusion based: driven by concentration differences such that oxygen passes from air at atmospheric pressure into water at a higher hydrostatic pressure. This oxygen transfer mechanism, wherein air is supplied to the process at very low pressure, is the reason MABRs have significantly lower energy consumption compared to other wastewater treatment processes, such as conventional activated sludge (CAS), that utilize diffusers. This energy savings is one of the key reasons MABRs are gaining traction in the municipal wastewater industry.

WASTEWATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • 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.

  • Pilot Studies In North Carolina With Hydrex™ Odor Solutions
    Pilot Studies In North Carolina With Hydrex™ Odor Solutions

    Two municipalities were faced with odor issues and required corrosion prevention in their collection systems. Monitoring in the sewer lines indicated peak H2S atmospheric concentrations of 300-500 ppm. Both clients desired H2S < 20 mg/L to prevent corrosion and preferably lower to prevent H2S odor.

  • Sonoma County Improves Sludge Handling With Screw Press Pump Technology
    Sonoma County Improves Sludge Handling With Screw Press Pump Technology

    When California’s Sonoma County Water Agency (SCWA) wanted to improve its sludge solids dewatering as part of a major sludge handling upgrade, they were seeking an alternative to outdated sludge belt press/conveyor technology.

  • Mexican Power Plant Meeting Tough Wastewater Challenges
    Mexican Power Plant Meeting Tough Wastewater Challenges Recovering water for boiler feed makeup can come with many challenges for power stations; however, the level of complexity involved with treatment is raised considerably when having to deal with municipal wastewater. By Geoff Hong, Regional Sales Manager – Water and George Di Falco, Communications Coordinator, Eco-Tec Inc.
  • Fluence’s MABR For Wastewater Treatment features Passive Aeration And Saves Up To 90% On Energy Costs
    Fluence’s MABR For Wastewater Treatment features Passive Aeration And Saves Up To 90% On Energy Costs

    The Bordeaux region of St. Thomas had a pressing need for a wastewater treatment plant that produces high effluent quality. Its existing plant was old and did not meet regulation nor industry standards. Fluence, together with its partner SD&C Inc., built an MABR-based wastewater treatment plant from the ground up, utilizing whatever existing pieces of equipment could be used from the old plant.

  • Air Filter Maintenance: Impact On Efficiency And Machinery Health
    Air Filter Maintenance: Impact On Efficiency And Machinery Health

    In an ideal world, would we not want to eliminate air filters altogether? What keeps us from achieving this is foreign material, detrimental to air, which moves rotating equipment; meanwhile, the process that receives the air sometimes cannot tolerate it.

  • WWTP Overcomes Odor Issue
    WWTP Overcomes Odor Issue

    The City of Crystal Lake is located about 45 miles northwest of Chicago with a population of nearly 45,000 people. Like many wastewater treatment plants, urban sprawl and suburban development puts the Crystal Lake Wastewater Treatment Plant near a host of commercial and residential neighbors, including a high school immediately west of the plant. Plant managers were very forward thinking, and wanted to be good neighbors to those occupying the surrounding area. They wanted to take steps to reduce — and hopefully eliminate completely — any odor issues from the plant.

  • Replacement Vacuum Feeders For Hypo And Bisulfite Boost Disinfection Reliability For WWTP
    Replacement Vacuum Feeders For Hypo And Bisulfite Boost Disinfection Reliability For WWTP

    The replacement feeders also cut bisulfite consumption by 30 percent and ended the troublesome maintenance burden for instrumentation tech and plant operators.

  • Case Study: New MIOX iAO Technology For Groundwater Remediation At 75% Cost Reduction
    Case Study: New MIOX iAO Technology For Groundwater Remediation At 75% Cost Reduction

    Cl₂/UV AOP treatment processes are highly complex and dependent on a number of water chemistry and treatment process parameters. With over three years of direct experience, MIOX is in a unique position to apply its expertise towards customer-specific optimization of Cl₂/UV AOP treatment processes with the goal of reducing costs and improving safety. The use of MIOX’s On-Site generation systems, which produces aqueous chlorine from non-hazardous sodium chloride brine, offers a safer and superior chemical introduction into AOP treatment trains compared to concentrated hydrogen peroxide or bulk hypochlorite.

  • WSSC Achieves Over 60% Reduction In Hydraulic Plan Review for Water And Wastewater Systems
    WSSC Achieves Over 60% Reduction In Hydraulic Plan Review for Water And Wastewater Systems

    Washington Suburban Sanitary Commission (WSSC) Development Services Group reviews hydraulic plans for approximately 160 proposed development plans per year. This includes water and sewer system extensions as well as approximately 172 small-site utility plans (commercial private systems) that connect to the existing water and sewer network in two large Maryland counties.

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WASTEWATER TREATMENT APPLICATION NOTES

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WASTEWATER TREATMENT PRODUCTS

Ozone System For Advanced Water Treatment And Disinfection Ozone System For Advanced Water Treatment And Disinfection

With 1,200 installations worldwide, De Nora Ozone offers a wide range of ozone systems, from small compact units to turnkey plants. Ozone is used for the treatment of municipal drinking water and wastewater; micropollutants; industrial wastewater and process water; advanced oxidation; pools and spas; and biological sludge reduction. Using the strongest natural oxidants, on-site ozone generation does not create a residual biological sub-product, offers quick reaction time, and requires no chemical compounds. De Nora Ozone systems maximize ozone concentration while minimizing energy requirements, working closely with the customer to a provide a tailor-made solution for individual needs. De Nora Ozone has the expertise to ensure you get the most effective technical solution through pilot plants, testing and scale units.

TORNADO® Subsurface Aerators TORNADO® Subsurface Aerators

With thousands of units in operation around the world, Tornado subsurface aerators have a proven record of maximizing performance while minimizing energy consumption.

Industrial Aeration Industrial Aeration
Since 1952 when the first Otterbine was introduced to the market it had been engineered to operate and perform in the most difficult of environments.
Mobile Water Services: High Recovery Reverse Osmosis Technology Mobile Water Services: High Recovery Reverse Osmosis Technology

Veolia Water Technologies provides clients with mobile water solutions utilizing High Recovery Reverse Osmosis technology. With applications in water scarce areas, or where wastewater regulations restrict discharge, Veolia’s Closed Circuit Desalination (CCD™)* RO technology allows customers to recover up to 96% of the influent flow.

Turbidity And Total Suspended Solids (TSS) Sensor: Aztec ATS430 Turbidity And Total Suspended Solids (TSS) Sensor: Aztec ATS430

The simplest way to remain compliant with turbidity and TSS level monitoring
Featuring ABB’s innovative adaptive TSS calibration technology, the ATS430 can be counted on to provide improved control of turbidity and suspended solids throughout its operational life. Its service-free design, plus features including in-situ cleaning, simplified calibration, predictive maintenance diagnostics and EZLink connectivity, enables it to offer the lowest cost of ownership of any device on the market.

Biothane Lab Testing Biothane Lab Testing

Biothane Lab Testing by Veolia Water Technologies

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LATEST INSIGHTS ON WASTEWATER TREATMENT

  • How Sludge-To-Energy Technology Is Boosting Water Resilience And Slashing Emissions For Cities
    How Sludge-To-Energy Technology Is Boosting Water Resilience And Slashing Emissions For Cities

    Growing cities are generating higher volumes of wastewater and putting a strain on clean water supplies, calling for solutions that extract value from “waste” and ensure the sustainability of resources — with the added bonus, or imperative, of protecting the environment.

  • Innovative, Collaborative, Inevitable: Furthering The Evolution Of Smart Water In North America
    Innovative, Collaborative, Inevitable: Furthering The Evolution Of Smart Water In North America

    A Q&A with Gary Wong, chairman of the SWAN North American Alliance

  •  How To Improve Test Accuracy With The Latest Sampling Technology
    How To Improve Test Accuracy With The Latest Sampling Technology

    Sampling and laboratory testing are major responsibilities for water professionals. Test results are used for process control, and ultimately to determine that water is safe for drinking, reuse, or discharge to the environment. Regulatory agencies rely on reported results for proof of permit compliance. So, obtaining representative, properly collected and preserved samples is the first critical step to ensure accurate test results.

  • Technology Tips – Grinders For Sewage Sludge Systems
    Technology Tips – Grinders For Sewage Sludge Systems

    Ever since its invention in 1973 the Muffin Monster two-shafted grinder has been a fixture in wastewater treatment plants sewage sludge systems.  The industry has seen significant changes since then but the need for grinders has persisted and evolved with the requirements of plant operators and engineers.

  • CRM Pioneer Now Pioneering Comprehensive Water Recycling, Too
    CRM Pioneer Now Pioneering Comprehensive Water Recycling, Too

    Since 1999, when business people at more than 150,000 companies worldwide wanted to keep better track of their customers — and be more responsive — they turned to Salesforce.com and its industry-leading customer relationship management (CRM) software. Now, companies looking for ideas on sustainability, in terms of water recycling, can turn to the new Salesforce Tower in San Francisco as a leading-edge environmental solution as well. It is estimated that the building’s water recycling system will save more than 7.5-million gallons of drinking water annually — enough to supply more than 16,000 San Francisco residents.

  • Sanitary District Generates EPA Award By Turning Trash To Treasure
    Sanitary District Generates EPA Award By Turning Trash To Treasure

    The Greater Lawrence Sanitary District (GLSD) in North Andover, MA, was one of 28 organizations nationwide to be honored for an innovative water or wastewater project in the most recent PISCES Recognition Program sponsored by the Clean Water State Revolving Fund (CWSRF). PISCES stands for Performance and Innovation in the SRF Creating Environmental Success.

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WASTEWATER TREATMENT VIDEOS

Welcome To The Power Of Clarity Welcome To The Power Of Clarity

Hach's breakthrough suite of software and connected instruments turns data into powerful operational insights. Watch this short video to see how Hach simplifies the complexities and brings clarity to water management.

TrojanUV Solo Lamp™ Technology (Video) TrojanUV Solo Lamp™ Technology (Video)

It is no longer necessary for municipalities installing UV technology to make a choice between energy-efficiency and a small footprint.

Video: ZS Turbo Blower In A Wastewater Treatment Plant Video: ZS Turbo Blower In A Wastewater Treatment Plant

Atlas Copco's ZS screw blower saves energy in a wastewater treatment plant.

Everything You Need To Know About Membrane Replacement

In this short tutorial, an expert from GE Water & Process Technologies talks about membrane replacement -- when to replace them, how to do it, and much more. You'll also hear from a GE customer to see why they replaced their membranes and what happened as a result.

Video: Variable Area Flowmeters Video: Variable Area Flowmeters
Variable area flowmeters from KROHNE offer not only the maximum possible accuracy but also maximum reliability.
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