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

  • 24″ PIPELINE DELUMPER® Heavy-Duty Inline Processor

    This 24″ PIPELINE DELUMPER® was design to handle 84,000 lbs/hr of polypropylene for a major petro-chemical company. The unit features 24 inch inlet and outlet flanges, stainless steel construction and a 50 HP motor to handle oversized agglomerates of polypropylene. The unit de-agglomerates troublesome scale and lumps that can cause operational difficulties for a petro-chemical plant. Reliability is critical as the unit is to be installed extremely high up in a relatively inaccessable area.

  • Riviera Utilities WWTP Upgrades To State-Of-The-Art Aerobic Granular Sludge Technology

    Instead of taking the traditional approach of adding an additional oxidation ditch to increase treatment capacity, Riviera Utilities had the desire to “future-proof” the plant and prepare to meet more stringent effluent requirements.

  • Cheyenne Board Of Public Utilities In Cheyenne, Wyoming Successfully Moves From Calcium Hypochlorite Tablets To Microclor® On-Site Hypochlorite Generation

    The Cheyenne Board of Public Utilities (BOPU) operates the water and wastewater systems for the capital of Wyoming which has a population of more than 63,000. Located in the fast growing Front Range Urban Corridor, BOPU is challenged by growth, periodic water scarcity and aging infrastructure.

  • Historic Town Remedies FOG Problem

    Among the pump stations managed by Branford, CT, is a long-term problematic station located at Burban Street. There were two primary problems at this station: 1) clogging from modern day trash and raggy, stringy materials, and 2) fats, oils, and grease (FOG) from a nearby nursing home and restaurants, which accumulate and float on the water surface, resulting in a horrendous mess.

  • Dual Auger System Eliminates Clogged Pumps Caused By Flushable Wipes

    The Drake Pump Station, located in Saginaw, Michigan experienced chronic pump maintenance due to flushable wipes. Although the dry pit pump station represented only 0.1 million gallons per day (mgd) of flow in the city’s collection network, it required a substantial amount of servicing – up to three times a week. This consisted of two operators spending four hours manually removing rags in a confined space entry to clean out the clogged pump. It was a dirty, unplanned, and time-consuming task.

  • Case Study: Chemical Company Achieves Compliance While Pretreating Water For Use On Public Golf Course A worker at Millennium Specialty Chemicals of Jacksonville, Fla. monitors a cooling water tank gauge.
  • Water Treatment Analytics: A Road Map To Greater Efficiency

    From the largest metropolitan water treatment plant (WTP) or wastewater treatment plant (WWTP) operations to the smallest rural systems, the goals are essentially the same — achieve regulatory compliance and the most efficient results at the lowest practical cost. The most feasible (i.e., affordable) control solutions vary by process, plant size, and budgetary limitations. Here are several high-level guidelines to achieving a common strategy that works across virtually all applications: good data, properly analyzed, yields good results.

  • Avoiding The Deadly Legacy Of Hydrogen Sulfide

    Workplace fatalities are devastating to families, friends, and employers alike, and they are especially tragic when resulting from a preventable incident. Whether it be a lapse in safety judgement, a lack of proper monitoring equipment and protocol, or the pervasiveness of human error, employers must always be attentive to factors that could lead to severe worker injuries or death.

  • City Of Springfield, MO, Upgrades Disinfection System From Gas Chlorine To On‐Site Sodium Hypochlorite Generation

    In April 2013, City Utilities started up three Microclor Model MC‐1500 skid systems, each rated at 1,500 pounds per day of free available chlorine.

  • Careful Management Of Our Water Supply Reduces Water Stress

    Every year the UN works to highlight the importance of one of our most precious natural resources on World Water Day. This year the UN’s campaign calls on people to share what water means to them. Thirst quenching, life giving and cleansing, it is significant to us all. Close management of our water supplies can ensure there is enough for everyone.

WASTEWATER APPLICATION NOTES

WASTEWATER PRODUCTS

Find infiltration and certify cured-in-place pipe. Focused Electode Leak Location (FELL). Represents the industry’s first reliable, proven, and measurable way to provide unbiased pipe condition assessment without third party interpretation or operator coding. Let Flow Meters show key areas, and FELL show specific locations.

As the final step before treated wastewater leaves the plant, effective disinfection is extremely important to protect human health, and the maintenance of the environment. This process eliminates pathogenic organisms that cannot be removed by previous treatment steps and reduces the spread of pathogens in the natural ecosystem.

USP’s current offerings include our unrivaled in-house CFD modeling expertise that can be used to optimize the injection, mixing and feed rates of PAA to meet the disinfection requirements of a facility. Also, launching later this year, is our OaSys iCT™ is a novel control approach that optimizes disinfection performance by calculating the optimal chemical dosage that accounts for sources of treatment variability in real time. Available for use with PAA or chlorine.

The DE NORA TETRA™ Modular DeepBed Filter Plant from De Nora Water Technologies is designed as a competitive filtration plant for tertiary effluent from small to medium size sewage works. The Modular DeepBed Filter utilizes the technology of DeepBed filtration that has made the TETRA filter such a successful tertiary treatment process over many years in Europe and the United States.

Fairbanks Nijhuis vertical close-coupled solids-handling pumps have over 100 years of proven experience in the pumping of solids, slurries, sludge, pulp, trash, sewage and grit. These pumps are specifically designed to pass solids, trash and long, stringy materials.

Otterbine’s 1/2HP Fractional Series Aerating Fountain and Mixer line includes 4 spray patterns and a horizontal mixer – the only unit like it on the market today!

The BRUSHAWAY assembly consists of nylon brushes fitted on a frame and inserted into the filter screen. A simple handle, outside the filter, brushes away particles from the screen surface, and expels them out from the filter.

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.