WASTEWATER
Beyond Clarifiers: How Advanced Primary Filtration Solves Wet Weather Capacity Challenges
Pile cloth media filtration treats wet weather flows in real time, increasing capacity, improving removal efficiency, and helping utilities reduce reliance on limited stormwater storage.
WASTEWATER CASE STUDIES AND WHITEPAPERS
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Application Note: The Ultrameter II™ In Municipal Wastewater Treatment
Publicly Owned Treatment Works (POTWs) are faced with the challenge of processing the effluent wastes of multiple sources: residential, industrial, and environmental. Under laws governing pretreatment, the ultimate responsibility in determining whether or not industrial effluent meets criteria for treatment belongs to the POTW. Once the POTW has the effluent waste within the confines of its treatment facility, it is accountable to the federal, state, and local regulations governing the quality of the wastewater it discharges into lakes and streams or injects underground. By Myron L Company
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On-Site Sodium Hypochlorite Generation Replaces Hazardous Cyanide In Precious Metal Extraction
The Baia Mare Aurul gold mine in North Western Romania suffered a historic catastrophe in January 2000, when its dam burst, streaming out 100,000 cubic meters of waste water, largely contaminated with cyanide, commonly used in the process of mining gold, into tributaries of the Tisza River, a major waterway in Hungary.
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Decreasing Lifecycle Costs: Don't Lose Dollars Chasing After Cents
This article explores some of the best practices to ensure overall station reliability, i.e., “total station efficiency,” in order to keep operating costs and downtime at a minimum.
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Case Study: Orange County SWRF Utilizes 8 AquaDisk® Filters To Assist In Meeting Its Multi-faceted Reuse Program
Orange County SWRF utilized Aqua-Aerobic Systems' products to upgrade aeration process, sludge processing systems, more aeration tanks, a three-pass, modified step-feed process and four large clarifiers with return activated sludge systems.
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ICEAS SBR Technology Improves Effluent Water Quality For St. Joseph WWTP
St. Joseph Sanitary District No. 1, near La Crosse, WI, operated a wastewater treatment plant (WWTP) that served approximately 1,000 residential customers.
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Coal Yard Runoff Compliance Using Actiflo® Technology
Storm water runoff from a 37-acre coal storage yard utilized as part of daily operations at an industrial site in Southwestern Pennsylvania posed a problem when the Pennsylvania Department of Environmental Protection (DEP) updated the facility’s NPDES permit.
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Top 5 Considerations When Choosing A Flight Scraper For Your Rectangular Clarifier
What should you consider when planning to replace the flights in your rectangular clarifier? Flights are also known as scrapers, c-channels, flight boards, drag flights, and sludge pushers. Regardless of what you call them, they serve the same purpose. Flights convey settled solids to a hopper or collection pit and push surface debris into a scum removal device in a straight-line clarifier system. Although flights may all seem the same at first glance, there are some key characteristics to think about when evaluating which type you may need for your chain and scraper system.
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You Shouldn't Splash That S**t Around
The novel coronavirus pandemic has brought a wide range of health issues into sharp focus, including the spread of pathogens through aerosols, tiny droplets of liquid that can hang in the air for minutes or even hours.
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High-Capacity Washer Compactors Compress More Debris, Save More Money
Duperon’s new high-capacity washer compactor was designed to tackle the most difficult challenges while reducing overall operating costs.
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JWC's Honey Monster Helps Big Fish Environmental Find Clean Water
For several years, local Michigan municipalities were overloaded with septage disposal issues and it was difficult for private pumpers to offload as land-application of septage became illegal. So John Campbell, founder of Big Fish Environmental and a 29-year veteran of septic tank pumping, started developing a unique and efficient septage receiving and treatment plant design. By JWC Environmental
WASTEWATER APPLICATION NOTES
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Achieving A Delicate Balance To Maintain RO Membranes
This application note explores the importance of maintaining a delicate balance in reverse osmosis systems to protect RO membranes.
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BOD Determination Of Strongly-Loaded Organic Waste Water With The BOD-OxiDirect
Strongly loaded organic industrial waste water, i.e. from sugar- or paper-factories, need to be pre-treated before determining the BOD value.
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Microbial Control In Cheese Making
Microbial contamination of food and beverage products is a potentially catastrophic occurrence resulting in foodborne illness or food spoilage. The same nutritive properties that render cheese and dairy products such a valuable food also provide an ideal growth medium for microbes if contamination occurs.
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Deployment Of NextStep In Reverse Osmosis Systems
Pulsafeeder has secured a significant order for its NextStep series of stepper motor-driven metering pumps, specifically for use in advanced Reverse Osmosis (RO) applications. This deployment underscores the growing demand for precision chemical dosing in high-performance water treatment systems. The order includes NextStep NS1 and NS9 models, each selected for their unique capabilities in high-pressure and low-pressure RO environments.
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Active Energy Control – Energy Reductions Of Up To 10% Above Standard Drives
Energy costs continue to increase. At the same time, there is increased pressure to reduce utility bills without sacrificing operations or comfort.
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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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Pile Cloth Media Filtration For Food Processing
Read about the cloth media filter installations that have been operating in food and beverage wastewater plants for over 25 years.
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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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Ultrasonic Level Measurement In Water And Wastewater Plants
Radar technology is often viewed as the “best” method of level measurement, but this isn’t necessarily true in the water industry.
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Why Measuring Hydrogen Sulfide In Wastewater Matters
Hydrogen sulfide (H2S) gas in wastewater environments is a familiar concern. But waiting until its odor is detected can be too late to exert as much control over it as desired. Fortunately, a new ability to monitor H2S concentrations — in the liquid wastewater stream, in real time — is advantageous for wastewater professionals in terms of safety, cost, and consumer complaints. Here are four ways to capitalize on that capability.
LATEST INSIGHTS ON WASTEWATER
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A shift in how we approach source water protection is long overdue. Currently, we are trapped in a cycle of escalating costs, forced to treat symptoms like algae and invasive weeds expediently with chemicals while the underlying risk in the reservoir compounds. True risk management requires breaking this cycle.
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Einstein once said of compound interest, "He who understands it, earns it. He who doesn't, pays it." The same logic of compounding applies to the organic sediment accumulating on the floor of your drinking water reservoir. The longer you wait to address it, the more exponentially expensive it becomes to fix.
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Our infrastructure systems have operated in managed deterioration for decades. And not surprisingly, once they deteriorate badly enough and cross over into active failure, all cost discipline disappears.
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Every day, food scraps disappear into trash bags, are hauled away, and forgotten. But that waste could be turned into something productive.
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Currently, water infrastructure is outdated and fragile, prone to breakages and leaks. Reactive approaches to water infrastructure are only implemented after an incident and are more expensive than simple maintenance fixes. Geotechnical Internet of Things (IoT) devices enable water and wastewater industry professionals to identify and address issues before they escalate into catastrophic events.
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Traditional gravity sewers rely on large-diameter mains, deep trenches, and often multiple lift stations — elements that carry significant capital and restoration costs, particularly in rural or rugged terrain. To improve cost efficiency and sustainability, many municipalities are adopting decentralized collection systems such as Septic Tank Effluent Pump (STEP) systems, Septic Tank Effluent Gravity (STEG) systems, and liquid-only sewers.