WASTEWATER

GettyImages-157593000_450_300 How To Choose Among Wastewater Screen Options

Wastewater screening isn’t one-size-fits-all. The right choice depends on flow, debris, and efficiency needs, with long-term performance and maintenance costs shaping the best solution.

WASTEWATER CASE STUDIES AND WHITEPAPERS

  • Designing For Peaks And Valleys In Seasonal Communities With MBR Technology

    Wastewater flows in seasonal resorts are highly volatile. Learn how to stabilize biological treatment against sudden peak demands and low-flow off-seasons, ensuring continuous compliance and securing a high-quality water source for reuse.

  • Quick Response Following Tropical Storm Prevents Service Disruption

    Following Tropical Storm Isaias, a damaged reservoir outlet pipe needed fast, custom repair. Learn how a quick response, site assessment, and custom-engineered couplings prevented a major water service shutdown.

  • Sulzer Equipment Increases Wastewater Treatment Capacity And Efficiency

    After twelve years of operation, a modernization of a WWTP was needed for the removal of nitrogen and phosphorous pollutants, as well as an enlargement by another 100’000 PE (population equivalent).

  • Grit's True Impact On Wastewater Treatment Quality And Costs

    Grit buildup that is ignored or improperly addressed can have profound effects on both treatment efficiency and maintenance costs, even if it does not impact effluent quality. Here are some of the cost implications and physical effects of inefficient grit removal, along with some important considerations on the impacts of letting grit go unmanaged.

  • Clearing Channels And Tanks Of Rag And Fiber Produces Benefits Beyond The Tanks

    Reduction of ragging is merely one of the benefits the EscaMAX® Perforated Plate Screen bestows upon its implementer. But this is such a huge factor, that mitigating it brings night-and-day results in other areas such as reducing debris in the grit channel, increasing space for energy-producing biosolids in tanks, and releasing cleaner end products. 

  • Aeration Basin Air Flow Monitoring At A Stockholm Wastewater Plant

    At a wastewater treatment plant in Stockholm, Sweden, each aeration basin has several diffuser systems. Each diffuser system requires individual air flow monitoring and independent control. The air flow pipes leading to the diffusers typically do not have much straight run of pipe. This makes accurate measurement of the air flow more difficult. In addition, the air flow coming from the compressors is inconsistent

  • 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.

  • 6 HUBER Coarse Screen TrashMax® For Flood Protection In Houston, Texas

    In response to Hurricane Harvey, the Fort Bend, TX Levee District No. 2 embarked on a major upgrade project to increase the flow and capacity of one of its pump stations by 400%. The goal of the project was to protect the area around the district from 100- year floods in the future.

  • Did You Know This About Granular Activated Carbon?

    Did you know that just one gram of granular activated carbon (GAC) can have a surface area equivalent to several football fields? 

  • Water Reclamation Facility Streamlines Equipment For Improved Function

    A water reclamation facility in Carol Stream, Illinois, optimized its equipment layout using Blue-White’s FLEXFLO® M2 metering pumps and CHEM-FEED® wall mount systems, improving functionality, reducing piping complexity, and saving space for a more efficient operation.

WASTEWATER APPLICATION NOTES

WASTEWATER PRODUCTS

The Integrated Fixed-Film Activated Sludge (IFAS) process is typically installed as a retrofit solution for conventional activated sludge systems that are at or beyond capacity.

The unique design of Harmsco Hurricane Swing Bolt filter housings separates dense solids prior to cartridge filtration for extended filter life, increased dirt holding capacity and reduced maintenance costs.

SureSafe™ Filter Cartridges will inhibit the growth of Legionella on your filter cartridges. Silver has been used to help sanitize liquids for more than 4,000 years. Permanent Silver Zeolite fibers are used to manufacture HARMSCO® SureSafe™ Filtration Media which inhibits the growth of biofilms on and in the filtration media.

As the latest addition to Hydra-Stop’s award-winning Insta-Valve family of solutions, customers with 20- and 24-inch pipes can now benefit from the only insertable gate valve with the superior performance and reliability you would expect from the Insta-Valve name.

Strongly loaded organic industrial waste water, i.e. from sugar- or paper-factories, need to be pre-treated before determining the BOD value.

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.

LATEST INSIGHTS ON WASTEWATER

  • 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.
  • Aeration control strategies often remain conservative and static. Blowers operate continuously, oxygen levels are maintained near maximum, and airflow rates are rarely adjusted in response to real-time biological demand. The result is widespread over-aeration — a condition that does not improve treatment performance but significantly increases operating costs.

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.