WASTEWATER

GettyImages-2219628794_450_300 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

  • Mixers Clear FOG And Reduce Operating Costs By More Than 80%

    The Cypress Creek WWTP in Florence, AL, uses an extended aeration activated sludge process with a design capacity of 20 million gallons per day (MGD). Cypress Creek serves mostly residential customers, but about 15 percent of its influent comes from industrial sources, and their discharge to the plant contains large amounts of fats, oils, and grease (FOG).

  • Addressing Fouling Challenges In Water Treatment With RO Membrane

    Reverse osmosis (RO) membranes are widely used in potable water, wastewater, and industrial applications. However, a major issue in the application of RO membrane technology for desalination and wastewater reclamation is membrane fouling. It limits operating flux, decreases water production, and increases power consumption. Membrane fouling also increases the need for RO plants to perform periodical membrane CIP procedure. These problems decrease process efficiency, increase operation cost, and raise environmental issues related to the CIP solutions disposal.

  • WTP Chooses A-758 Plus™ Lime Slaker Systems To Replace Existing Systems

    The Albert R. Davis Water Treatment Plant (WTP) in Austin, Texas, is one of three water treatment plants supplying drinking water to the greater Austin metropolitan area. The plant was built in 1954 and has had multiple upgrades over the years, increasing its capacity to 118 million gallons per day (MGD).

  • A Fairy Tale Ending At A Pump Station

    When the Otay River Pump Station had a floating blanket of grease problem, they turned to the Vaughan Chopper Pump to help eliminate it — while also being a cost-effective solution.

  • Award-Winning Design Helps WWTP Protect Chesapeake Bay Watershed

    Arlington County’s Water Pollution Control Plant (WPCP) in South Arlington, VA, is located on 35 acres of land squeezed into a commercial/residential neighborhood less than a mile west of Ronald Reagan Washington National Airport. The facility treats flows from nearly all of Arlington. In addition, nearly 20 percent of the plant’s flow comes from neighboring localities such as Alexandria, Fairfax County, and Falls Church. Effluent from the plant is discharged into Four Mile Run to the south, which feeds into the Potomac River and, ultimately, the Chesapeake Bay.

  • Small Footprint, Big Results: California Casino Wins With MBR

    Quechan Casino Resort, a gaming facility located on Native American owned land in Winterhaven, California, began its wastewater treatment operations in January 2009.

  • Stormwater Wetland Reduces Sewer Overflow By 84 Percent

    Through hydraulic computer modeling, MWH Global helped alleviate stormwater flooding in Cambridge, M.A., by creating the Alewife Reservation Stormwater Wetland to enhance water quality and provide recreational benefits to the community.

  • White Paper: Performance Of Floating Horizontal Aerators In Aerated Lagoons And Oxidation Ditches When selecting aeration equipment to use for a specific application, issues to address include reliability, serviceability, capital cost, system appurtenances, and cost of operation and maintenance. Another important consideration is oxygen transfer rate (OTR). Horizontal floating aerators have relatively high transfer rates and have been used successfully in aerated lagoons and oxidation ditches. Using equipment with high OTR values reduces the horsepower input that is required and subsequently lowers capital cost and O&M costs. Mixing of wastewater in lagoons and oxidation ditches is also important to maintain solids in suspension
  • Overcoming Inconsistencies In Digester Gas Measurement

    Thermal mass flow meters do a good job of measuring gas flows in water treatment and wastewater treatment applications. Measuring digester gases, which can contain moisture ranging from vapor to droplets, however, makes the job a bit tougher for all gas flow measurement technologies. Identifying the right solutions to deliver accurate, repeatable and reliable readings without having to reengineer the piping system becomes much easier and more economical by following these helpful guidelines.

  • Pentair Partnered With One Illinois County And An Engineering Design Firm To Build A Cutting-Edge Wastewater Treatment Plant

    Discover how Pentair partnered with one Illinois County and an engineering design firm to build a cutting-edge wastewater treatment plant.

     

WASTEWATER APPLICATION NOTES

  • Analyzing Total Organic Carbon In Sea Water

    The analysis of Total Organic Carbon (TOC) in seawater can be both challenging and expensive. The concentration of organic carbon in seawater is of considerable interest. The effect this matrix can have on TOC analyzers can lead to rapid consumable turnover, costly maintenance and repairs.

  • Lab Gas Sub-Metering Accuracy Improves With Thermal Flow Meters To Save Money

    Facility administrators will find the advanced ST100 Series Thermal Mass Air/Gas Flow Meter from Fluid Components International (FCI) helps them improve the accuracy of specialty gas point of use and sub-metering operations to achieve accurate billing in their labs for better cost tracking and control.

  • Removal Of PFCs With Activated Carbon

    In recent years, various perflorinated chemicals (PFCs) have come under increasing scrutiny due to their presence in the environment, in animals, and in human blood samples. There are two major classes of PFCs: perfluoroalkyl sulfonates such as perfluorooctanesulfonic acid (PFOS) and long chain perfluoroalkyl carboxylates such as perfluorooctanoic acid (PFOA) and perfluorononanoic acid (PFNA).

  • A Non-Intrusive Solution For Measuring Wastewater Flow In A WWTP's Iron Pipes

    A municipal association needed to understand if wastewater was being equally distributed across two cast iron pipes within its wastewater treatment plant. Learn how clamp-on ultrasonic measurement helped successfully measure the flow.  

  • NEOSEP® Membrane Bioreactor System Simplifies 'Fundamental Necessities' Of MBR

    The NEOSEP® MBR system features Kruger’s uniquely designed K-120C and K-240C flat sheet membrane modules.  The modules offer several innovative design features that enhance ease of installation, operation and maintenance.  This includes an integrated central lifting eye, offering an incredibly well balanced module that makes installation and retrieval a simple and stress-free process.

  • 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.

  • Application Note: Simultaneous Determination Of Total Bound Nitrogen (TNb) And Total Organic Carbon (TOC) In Aqueous Samples Total bound nitrogen (TNb) consists of dissolved ammonia, nitrates, nitrites, amines, and other organic nitrogen-containing compounds. TNb measurements represent an alternative to Total Kjeldahl Nitrogen (TKN) analysis for rapid screening of industrial wastewater, drinking water,agricultural run-off, and surface waters. By OI Analytical
  • 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.

  • Sewage Pump Station Level Application

    The most common level application in the water and waste water industry is the infamous wet well. With its line-of-sight measurement technology, rugged sensor, narrow laser beam and virtually nonexistent maintenance requirements or on-site calibration, ABB’s LLT100 laser level transmitter answers most concerns related to wet well level measurements and makes it easy to calculate what could amount to a substantial return on investment.

  • AquaSBR Systems Above 10 MGD

    This application note will explore installations of AquaSBR Systems worldwide in a variety of municipal and industrial applications. 

WASTEWATER PRODUCTS

The Series NXT3000 Gas Feed System is a family of vacuum-operated, solution-feed gas dispensing components including a vacuum regulator, meter assembly, and a selection of ejectors to meet customer needs for feeding chlorine, sulfur dioxide, ammonia or carbon dioxide gas. The Series NXT3000 is a versatile, high quality system which operates at sonic conditions eliminating the need for regulating differential pressure across the rate control valve. Proven design, rugged construction, and the use of the best available materials assures precise gas feeding, low maintenance and dependable operation for the life of the equipment.

Xylem’s offering of granular activated carbons includes a versatile group of adsorbents designed to meet your needs for air and water compliance, wastewater treatment, remediation, and water purification. As an exclusive supplier of AquaCarb® and VoCarb® carbons, among many others, we provide premium virgin, activated, and reactivated carbons sourced from high-quality bituminous coal, coconut shell, and anthracite coal, suitable for both liquid and vapor phase applications.

Our activated carbons undergo rigorous quality testing at a state-certified environmental and carbon testing laboratory. Our application experts can help you select the right carbon, enabling you to improve performance, extend time between exchanges, and minimize operating costs.

We maintain a large inventory of high-quality carbons for quick selection and delivery. We can deliver carbon to you in:

  • Supersacks
  • Paper bags
  • Fiber drums

The SCREENMASTER® CS wastewater bar screen provides efficient cleaning of a bar screen rack and removal of solids from rectangular channel installations. This unit employs a front clean/front return principle. It’s easy to install new or existing channels. The unit installs at a 75° inclination so it has a very small footprint. The design features a simple, continuous rotary motion. As the rake head passes through the bar slots collecting debris, it travels up the unit’s dead plate until it reaches a special scraper supplied with a dash pot for smooth operation. The screenings then drop out of the unit’s discharge chute.

The YSI ProDSS (digital sampling system) handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, turbidity, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature along with depth. 

DEMON® is the continuous or SBR deammonification process utilizing granular anaerobic ammonium oxidizing bacteria (anammox) biomass for aiding in reduction of high strength ammonia from side stream solids dewatering facilities reject flows. World Water Works’ DEMON process can solve the problem of returning high concentrations of ammonia to the plant influent. The true key to the success of the technology is the patented advanced biological process controls and the physical separation used to facilitate the growth and retention of the anammox bacteria.

The analysis of Total Organic Carbon (TOC) in seawater can be both challenging and expensive. The concentration of organic carbon in seawater is of considerable interest. The effect this matrix can have on TOC analyzers can lead to rapid consumable turnover, costly maintenance and repairs.

LATEST INSIGHTS ON WASTEWATER

  • 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.
  • 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.
  • 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.
  • Every day, food scraps disappear into trash bags, are hauled away, and forgotten. But that waste could be turned into something productive.

  • 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.
  • 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.

WASTEWATER VIDEOS

Explore ozone technology and advanced oxidation processes (AOPs), with expert insights on real-world applications, water safety, and innovations shaping municipal and industrial treatment systems.

Explore ozone system optimization with industry experts, covering performance strategies, field insights, automation, and common design pitfalls to improve efficiency, compliance, and long-term reliability in water treatment.

Go behind the scenes of ozone system service, exploring startup, maintenance, troubleshooting, and PinnacleCare™ support to ensure reliable, efficient operation of mission-critical installations.

Explore nanobubble technology’s science, benefits, and real-world applications in water treatment and agriculture, improving gas transfer, efficiency, and sustainability across a wide range of industries.

On this episode of The Water Online Show, hosts Travis Kennedy and Kevin Westerling interview Fred Gerringer, Brown and Caldwell’s Water Reuse National Practice Leader, about the creation of a first-of-its-kind State Water Reuse Regulatory Guide being developed for the WateReuse Association and its partner organizations.