WASTEWATER
Why You Should Replace Differential Pressure Transmitters With Radar
Replacing DP transmitters with 80 GHz radar eliminates density errors, reduces maintenance, and simplifies installation — delivering safer, more reliable level measurement for modern wastewater systems.
WASTEWATER CASE STUDIES AND WHITEPAPERS
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ABB Ability: Our Offering For Power Plants
ABB provides an extensive selection of proven measurement and analytical products and solutions for power generation industry applications.
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Why ASME PTC10 Is Not Sufficient To Define Testing Of A High Speed Turbo Blower
The technology to produce low pressure air, an energy intensive ingredient in the wastewater process, has made significant steps forward in recent years. Unfortunately, the specifications for testing these new sophisticated air producers have not kept pace.
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Use Of Pure Oxygen To Resolve Capacity And Odor Problems
The Escalon Industrial Waste Water Treatment Facility’s service area is seasonal and centered on tomato and pickle processing. The production season (roughly mid-July through mid-October) sees high hydraulic- and BOD loads that strain the facility’s capacity. During the high season highly variable BOD load depletes DO and causes permit violations and odor complaints. Praxair installed 4 X 15 HP Medium Velocity Oxygenation (MVO™ oxygenation system), with the ability to deliver up to 6 TPD of oxygen to supplement the existing aeration capacity at the facility.
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Monster Compactor Cleans-Up At Seattle Treatment Plant
In 2004 a team of researchers from King County’s Wastewater Treatment Division took on the task of cleaning up problems with the discharged screenings at their two treatment plants. The screenings were filled with excessive water, fecal and other organic matter. By JWC Environmental
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A More Measured World Of Water
Measurement is critical to the water industry. Whether it’s improving efficiency levels, investing in infrastructure or funding innovation – one thing is certain, accuracy matters and the sums have to add up.
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Challenges With Calibrating Electromagnetic Flow Meters
This article focuses on the use of electromagnetic flowmeters in the W/WW industry. It also covers Endress+Hauser’s capabilities to manufacture electromagnetic flowmeters from 1/12” to 120”, calibration, the company’s new innovative sensor with multiple sensing electrode pairs and verifying calibration in place after installation.
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On-Site Sludge Digestion: Aerators And Aerobic Mixers
A brief introduction into sludge digestion by means of aerators and aerobic mixers that are located on-site is provided. Rationale for treating on-site as well, as is a discussion of sludge characteristics and how they may be addressed are similarly considered. This is an introduction only and will be followed by development of the topic in more detail in later papers. By Dr. J.H. Wakefield, consulting scientist/engineer
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ACTIFLO And Hydrotech Discfilter: A Two Stage Process
The state of Minnesota instituted a new water quality requirement that limits cities along the Minnesota River to a 1 mg/L Total Phosphorus limit by 2015 to prevent algae blooms and resulting pollution problems.
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Upgrading A 100-Year-Old Pump Installation In New Orleans
Finding just the right pump for an application can be quite a challenge, especially when the building presents several constraints. Sulzer updated a near antique installation.
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Case Study: FMU90 Transmitter And FDU92 Sensor Provides Filter Control In Wastewater
The Prosonic S FMU90 and FDU92 ultrasonic system measures the difference in water level between two sides of a filtration system. By Endress+Hauser, Inc.
WASTEWATER APPLICATION NOTES
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Veterinary Drug Residue Analysis Using The AutoMate-Q40: An Automated Solution To QuEChERS
QuEChERS is a Quick-Easy-Cheap-Effective-Rugged-Safe extraction method that has been developed for the determination of pesticide residues in agricultural commodities.
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Determination Of Polycyclic Aromatic Hydrocarbons In Seafood
Polycyclic Aromatic Hydrocarbons (PAHs) are a large group of organic compounds found naturally in the environment. PAHs are monitored by the US Environmental Protection Agency due to their carcinogenic characteristics.
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Analysis Of Pesticide Residue In Spinach Using The AutoMate-Q40 An Automated QuEChERS Solution
QuEChERS is a Quick-Easy-Cheap-Effective-Rugged-Safe extraction method that has been developed for the determination of pesticide residues in agricultural commodities.
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Municipal Real-Time Water Quality Monitoring
We arm municipalities with actionable data necessary to make informed decisions about water quality in their communities
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Bringing Efficiency And New Confidence To BOD₅ Analysis
Biochemical Oxygen Demand (BOD) analysis is the test everyone loves to hate—and for compelling reasons.
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Sink Or Swim: A Comparison Of Submersible And Surface Mixers For Anoxic And Anaerobic Tank Mixing
With increasing requirements for enhanced nutrient removal, many wastewater plants are adding anoxic and/or anaerobic tanks in their secondary treatment systems. There are multiple options for enhanced nutrient removal including, but not limited to, the A2O (Anaerobic, Anoxic, Aerobic) process, the UCT or MUCT (Modified University of Cape Town) process and the Bardenpho process.
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Primary Wastewater Treatment: Influent Monitoring
The raw sewage entering a wastewater treatment plant comes from a variety of sources. In addition to effluent from domestic users, effluent from industrial users and storm water run off can be present.
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Best Practices In Moist And Wet Gas Flow
The Wet Gas MASSter sensor is for use in applications that have a high level of moisture or condensation present in the gas flow stream that cannot otherwise be removed.
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Dosing Of Sodium Hypochlorite Solution For Drinking Water Disinfection
A water purveyor was in urgent need of a chemically resistant flow instrumentation with a long life of service that allowed reliable and long-term stable dosing of the sodium hypochlorite solution.
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Aerated Biological Nitrogen Removal
Excess ammonia in receiving waters causes algal blooms that decrease oxygen levels. For this reason, many wastewater treatment plants (WWTPs) must limit ammonia in discharge. Mike Rousey, Hach Company
LATEST INSIGHTS ON WASTEWATER
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With the rise of water scarcity, environmental regulations, and corporate sustainability mandates, produced water treatment has become a strategic imperative for industries far beyond oil and gas. It is one of the fastest-growing segments in the water treatment industry, which has emerged as an amalgamation of environmental stewardship, regulatory compliance, and technological innovation.
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People around the globe are trying to figure out how to save, conserve, and reuse water in a variety of ways, including reusing treated sewage wastewater and removing valuable salts from seawater. But for all the clean water they may produce, those processes leave behind a type of liquid called brine. I’m working on getting the water out of that potential source, too.
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As water systems become more circular and complex, understanding and managing the subsurface — the hidden half of the water cycle — is becoming a critical enabler of resilience. This article explores the key trends shaping this new reality, from tackling “forever chemicals” to the water strategies redefining heavy industry.
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The White House has finalized plans to roll back rules under the National Environmental Policy Act (NEPA), narrowing its focus and limiting what the current administration claims are needless delays for federal approval of water, energy, and other infrastructure plans. For water and wastewater utilities, the changes could speed up permitting for critical projects, although experts warn the tradeoffs could do more harm than good.
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Traditional sewer systems, while effective, often require significant capital investment, invasive implementation measures, and complex maintenance. As a result, innovative decentralized wastewater solutions are necessary to address the needs of communities or commercial areas in need of wastewater service. One such solution is the liquid-only sewer (LOS) system.
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While many scientific and technical reports show that floods are becoming larger and more common, reports underestimate how their frequency is changing. Flood sizes get the spotlight, but governments and experts need to also consider their frequency to address implications overlooked by traditional management methods.