• Preparing For “The Big One” – Protecting The Nation’s Water Infrastructure
    Preparing For “The Big One” – Protecting The Nation’s Water Infrastructure

    The long holiday weekend was filled with news about seismic activity in California and Nevada. An original jolt on Thursday was followed by thousands of aftershocks and an even stronger 7.1 quake on Friday, and tremblers are expected to continue for days.

  • A Biological Solution To Ammonia and Other Regulated Contaminants In Groundwater
    A Biological Solution To Ammonia and Other Regulated Contaminants In Groundwater

    Ammonia is a naturally occurring compound of nitrogen and hydrogen. As a key ingredient in many fertilizers, the most common way that it infiltrates source water and causes water treatment plant (WTP) problems is as agricultural runoff. Fortunately, new biological treatments can now handle ammonia and frequently co-occurring compounds such as iron and manganese all in one process.

  • Denver Water Proposes Innovative Plan To Remove An Estimated 75,000 Lead Service Lines In 15 Years
    Denver Water Proposes Innovative Plan To Remove An Estimated 75,000 Lead Service Lines In 15 Years

    Recently, Denver Water’s board approved its proposed “Lead Reduction Program Plan” to fully replace the estimated 75,000 lead service lines (LSLs) in their system within 15 years. The plan is an innovative solution that will remove the primary source of lead within Denver Water’s system, while avoiding the use of orthophosphate that can further exacerbate nutrient pollution problems in rivers, streams, and oceans.

  • Saint Paul Regional Water Services Upgrades To Corrosion-Resistant Zinc-Coated Ductile Iron Water Main
    Saint Paul Regional Water Services Upgrades To Corrosion-Resistant Zinc-Coated Ductile Iron Water Main

    It is no secret that a large portion of the drinking water infrastructure in the U.S. is near or past its intended design life. Our nation’s water infrastructure needs an overhaul, and the cost of doing so is climbing rapidly. ASCE’s 2017 Infrastructure Report Card graded the nation’s drinking water infrastructure a D. According to AWWA, an estimated $1 trillion is necessary to maintain and expand drinking water service to meet demands over the next 25 years.

  • Neutralizing Dissolved Solids Aeration Concerns
    Neutralizing Dissolved Solids Aeration Concerns

    The presence of dissolved solids presents both physical and financial challenges for aeration diffusers in any wastewater treatment operation and can be particularly problematic in high-concentration industrial and food-processing applications. Here are some warning signs, insights, and solutions for coping with conditions that can lead to excessive dissolved solids accumulation.

  • How To Use ATP And DNA In A Wastewater Nitrification Monitoring Plan
    How To Use ATP And DNA In A Wastewater Nitrification Monitoring Plan

    Ammonia removal is a key metric for assessing wastewater treatment facility performance. This is because ammonia contributes to aquatic life toxicity. Furthermore, nitrogen, along with phosphorus, is a driver of receiving water eutrophication. Eutrophication, which simply is an over-enrichment of nutrients, can be detrimental to environmental and public health. It can result in harmful algae blooms, dissolved oxygen depletion, fish kills, and other damaging impacts.

  • Replacing Traditional Bar Screens At North Carolina Wastewater Treatment Plant Improves Employee Safety And Reduces Maintenance
    Replacing Traditional Bar Screens At North Carolina Wastewater Treatment Plant Improves Employee Safety And Reduces Maintenance

    The Water and Sewer Authority of Cabarrus County (WSACC) serves selected water and sewer needs for five jurisdictions in south-central North Carolina — Cabarrus County, Concord, Kannapolis, Harrisburg and Mount Pleasant — providing wholesale wastewater transportation and treatment and reservoir management.

  • 160-Year-Old Gas Line Shows Resiliency Of Iron Pipe
    160-Year-Old Gas Line Shows Resiliency Of Iron Pipe

    A 30-inch diameter 160-year-old cast iron pipe was recently excavated and retired from gas service in Chicago, Illinois. Installed in 1859, this pipeline provided Chicago’s residents, fewer than 112,000 at the time, with reliable lighting at night. As the years passed, this cast iron pipe continued to provide dependable gas service in the tough urban environment of downtown Chicago.

  • Water Scarcity Triggers First-Ever Cuts From Colorado River
    Water Scarcity Triggers First-Ever Cuts From Colorado River

    In the wake of ongoing source water scarcity, one of the country’s most critical — and critically stressed — drinking water sources will soon benefit from mandatory conservation measures.

  • American SpiralWeld Supports The Road To Local And Regional Progress In South Carolina
    American SpiralWeld Supports The Road To Local And Regional Progress In South Carolina

    When the Hugh K. Leatherman Sr. Terminal opens in North Charleston in 2021, container traffic traveling to and from it will use the new Port Access Road, a direct route from I-26 that will reduce the need for commercial trucks to use local roads. Supporting the mainline road’s foundation piers will be South Carolina made spiral-welded structural steel pipe installed as vertical piles driven 60 to 90 feet into the ground. Spiral-welded steel will also be used in the subfoundations of associated new bridges and roads.

  • We Use Satellites To Measure Water Scarcity

    Determining whether a region has sufficient water to satisfy the needs of people who live there is a complicated and imperfect process. Our research team has developed a new approach to measure water scarcity by using satellites hundreds of miles in space.

  • The City Of Aurora Saves Annually With In-House Asset Prioritization

    The City of Aurora is home to over 370,000 people and is Colorado’s third-largest city. Their wastewater system consists of approximately 1,100 miles of underground piping network.

  • DO Or Die — Dealing With Aeration Basin Oxygen Deficiencies

    Managing the treatment of wastewater — especially industry-generated wastewater that can elevate dissolved oxygen (DO) demands far beyond those of municipal/residential applications — is hard enough. Trying to do so during upset conditions is enough to put any water treatment professional on edge. Here are several preventive and remedial options to keep in mind before or after DO readings go haywire.

  • The Natural Way: Biological Treatment For Groundwater Contaminant Removal

    Nature has long provided guidance to simple and sustainable ways to manage environmental challenges. Biological treatment of potable water is no exception. As more water is required to support human activity worldwide, sources once considered too contaminated or expensive to treat are quickly becoming necessary options. For groundwater contaminant removal, once again, the laws of nature point the way.

  • Tapping Into A Smart Utility Network To Uphold Water Quality

    For municipal water systems, the endless demand to maintain water quality can be challenging. Anytime the quality or pressure drops far enough to necessitate a boil notice, the costs to inform residents and get the problem under control can be extensive. It can also create a public relations nightmare. Newer solutions provide a cost-effective way to build an entire smart utility network to more proactively manage water quality and generate greater ROI.

  • Simple Aeration Header Cleaning System Allows A Food Processing Facility To Get Back On Track

    On the afternoon of May 19, 2011 KLa Systems was contacted by one of their customers located in Virginia. The customer stated that their aeration basin was running at near 0 mg/l dissolved oxygen (DO) residual with their air supply blowers running at 100% of capacity. Based on the conversation it was determined that a KLa field service technician was needed on site immediately.

  • A New Platform For Safer Surface-Aerator Maintenance

    With so many different safety concerns — government-mandated or self-imposed — municipal and industrial wastewater treatment operators have a lot on their plates. Maintaining aerators used in open-basin treatment applications is just one source of those safety concerns. That is why a new approach to safeguarding worker well-being in the process of aerator maintenance activities is worth a closer look.

  • Clean Water Act May Change To Limit State Oversight

    Since 1972, the Clean Water Act has served as the cornerstone federal regulation governing water pollution in the United States. And now, the U.S. EPA has proposed that significant changes be made to it in order to ease processes for construction projects.

  • 4 Benefits Of Utilizing Reverse Osmosis Wastewater Treatment For Reuse

    When a municipality or business wants to reuse their wastewater, some applications require more treatment than others due to the quality of the wastewater. Many standard wastewater treatment systems consist of pretreatment, primary treatment, and secondary treatment stages. By the end of the secondary stage, a majority of the pollutants, solids, organics, inorganics, and metals have been removed or reduced. This is where reverse osmosis wastewater treatment can be utilized in a third stage process.

  • The Devastating Effects Of Arsenic Poisoning And How To Remove The Threat

    Arsenic (As) is a naturally occurring element that can be found at elevated concentrations in groundwater aquifers beneath Argentina, Bangladesh, Chile, China, India, Mexico, and the United States, per a 2018 World Health Organization (WHO) report (WHO, 2018). WHO estimates that at least 140 million people in 50 countries have been exposed to drinking water containing arsenic concentrations above the WHO recommended safe limit and U.S. Environmental Protection Agency (EPA) Maximum Contaminant Level (MCL) of 10 micrograms per liter (μg/L) (MassDEP, 2019).

  • Beware Of Problematic Wastewater Aeration Additives

    Too much of a good thing can create new problems as quickly as it resolves old ones. Maintaining a proper balance of antifoaming agents and polymer additives is critical for sustaining the appropriate air bubble size and distribution needed to achieve dissolved oxygen (DO) requirements for neutralizing high biochemical oxygen demand (BOD) in many industrial and food processing wastewater applications.

  • The New Standard In Wastewater Aeration

    Kaeser Compressors' rotary screw blowers offer superior performance, fast installation, low noise operation, and lowest life cycle costs to help wastewater treatment plant operators and designers revolutionize their plant's aeration system. 

  • Making The Best Of A Bad O2 Situation

    A balanced wastewater process is a beautiful thing — plenty of biochemical oxygen demand (BOD), plenty of O2, and all those hungry little microbes are fat and happy. But what can be done when dissolved oxygen (DO) takes a nosedive and there’s not enough O2 to satisfy industrial and food processing BOD? Here are some preparations to consider before wastewater treatment goes completely out of whack.

  • WWEMA Window: The Importance Of Character

    When we talk about what’s important in this industry (or our lives, for that matter), several things come to mind — money, for one, can be a dominant stressor, whether that’s from increasing costs or pressures on profitability. Maintaining and adding talent is also problematic. Skills and hiring have reached a critical point.

  • Wildfires: How Do They Affect Our Water Supplies?

    Wildfire is a natural part of many ecosystems, but recently these fires have become more severe, burning more acres and causing destruction in the western parts of the United States. Recently, U.S. EPA researchers have begun to look at the impact of these fires on our water supply, the natural resource we depend on for drinking, irrigation, fishing, and recreation.

  • Toxic Algae Kills Three Dogs In North Carolina

    For years, harmful algal blooms (HABs) have posed a threat to drinking water across the country. And now, a tragic incident has illustrated that the problem can have an even more direct effect on our loved ones.

  • Better Chlorine Control In A Cost-Effective Solution For Small Wastewater Plants

    Wastewater plants treat effluent with chlorine as a final disinfection measure prior to its discharge into the environment. While this should be straightforward, there are still a significant number of small water systems facing big problems because they don’t have a solid grasp on the process. The good news is that a modern, cost-effective solution is available.

  • EPA Determines Newark’s Lead Filters Not Working; City Distributes Bottled Water

    Late last week, the U.S. EPA sent a letter to officials in Newark, NJ, warning them that residents were exposed to dangerous levels of lead contamination in their drinking water and that the city’s efforts to mediate the crisis weren’t working.

  • What Are The Environmental Considerations Of A Seawater Treatment Plant?

    A seawater treatment plant was designed as one of the solutions to the recent water scarcity problems. Fresh and drinkable water isn’t easy to find in some places. As the world’s population grows and industrial production increases, even the largest of the world’s freshwater sources can eventually become strained. Therefore, desalination is meant to expand our sources of water across the world.

  • The Differences Between UV AOP & Granular Activated Carbon For Contaminant Treatment

    Providing safe drinking water is a growing challenge. While methods for the disinfection of bacteria, protozoa and viruses in drinking water are well established, there are certain chemical contaminants of concern resistant to traditional water treatment methods which are being detected in drinking water, and many have the potential to impact public health.

  • Setting A Precedent: American And Others Work To Ensure Oregon Water System Meets Rigorous Seismic Safety Standards

    Most agree that Oregon, with its breathtaking mountains and rugged coastline, is a scenic wonder. Yet the geologic forces that make it so spectacular also make it one of the most earthquake-prone spots in the country.

  • The 'First Line Of Defense' In Protecting Membrane Filters

    Multi-element, self-cleaning pretreatment filters optimize membrane filter life and production while minimizing maintenance and downtime.

  • Harness The Power Of The Sun For Off-The-Grid Desalination

    Industrial and population growth continue to outpace the supply of freshwater resources in many regions of the world. The need for additional freshwater resources is driving the need for desalination. When combined with concerns regarding climate change and harmful impacts associated with fossil fuels, desalination powered by renewable energy should be considered as a necessary part of the solution.

  • Drilling Deeper Wells Is A Band-Aid Solution To U.S. Groundwater Woes

    With memories of the wettest U.S. spring on record still fresh, it seems strange to hear that in many parts of the nation, groundwater supplies — the water stored underneath our feet, in rocks, and sediments — are lower than normal. This includes places with wet climates, such as southern Georgia, coastal Maryland, and Cleveland.

  • Grundfos Pump Stations Help City Of Greenville (Texas)

    The City of Greenville (Texas) was experiencing high volume growth and needed a solution to increase pump volume and pressure while working within a limited space. The Grundfos pre-fabricated pump stations cut 3 months off of the anticipated construction time and help Greenville solve those problems.

  • New York Commits $10M To Lead Service Line Replacement

    More than four years after a public health emergency was declared due to lead contamination of drinking water in Flint, MI, communities across the country continue to battle lead service lines (LSLs). In New York, a multimillion-dollar program may help put an end to that struggle.

  • Analyzing Water Quality Parameters When Choosing AOP Systems For Water Treatment

    In water and wastewater treatment, chemistry is king. Treatment options are evaluated depending on the quality of water to be treated and the treatment application. Treatment systems including AOP systems, are designed to specifically target certain contaminants and remove or reduce them from the water. This takes places through the power of chemical reactions. Even biological treatments involve chemistry at their core.

  • Using Master Controls To Enhance Aeration And Reduce Power Use

    Precision management of dissolved oxygen (DO) allows wastewater treatment plant operators to maintain optimal biological conditions in their activated sludge basins. However, older blowers and a lack of advanced aeration oversight can sabotage that effort while substantially wasting money. Master controls allow the blowers in each basin to be interconnected to improve system stability, provide backup, equalize blower run time, maintain ideal DO levels, and maximize energy efficiency.

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PRODUCT GUIDE

2" - 12" Resilient Wedge Gate Valves With Flanged Ends 2" - 12" Resilient Wedge Gate Valves With Flanged Ends

The AMERICAN Series 2500 Ductile Iron 250 psig AWWA Resilient Wedge Gate Valve is designed for use in drinking water, sewage and fire protection systems as well as irrigation and backflow control systems.

SJCH Series SJCH Series

High Flow Single Cartridge Filter for Commercial and Industrial Applications

OPTIBAR LC 1010: New Submersible Level Probe With Ceramic Diaphragm OPTIBAR LC 1010: New Submersible Level Probe With Ceramic Diaphragm

KROHNE introduces the OPTIBAR LC 1010 submersible level probe with ceramic diaphragm. Aimed at water and wastewater, environmental engineering and OEM applications, it provides a simple and continuous hydrostatic level measurement solution for water wells, rainwater retaining / overflow basins, or tanks.

Pressure Measurement Pressure Measurement

Whether pressure, level or flow, today pressure measurement technology is often used for measuring liquids, pastes and gases. With a wide range of sensor technology Endress+Hauser offer instruments with perfect fit for any kind of application.

FlygtCloud Web-Based Pump Control FlygtCloud Web-Based Pump Control

FlygtCloud enables you to connect to a new or existing Flygt pump station and carry out many of the functions of traditional telemetry without any of the risks - and for a much lower cost.

Submersible Sewage Pump Type ABS AFP Submersible Sewage Pump Type ABS AFP

The submersible sewage pump type ABS AFP range offers reliable and economical pumping of heavily polluted sewage in commercial, industrial and municipal applications. The AFP range provides excellent rag handling, and power up to 600 kW (805 hp).

MBR Wastewater Treatment Pilot System For Water Recovery & Reuse: RTS-513 MBR Wastewater Treatment Pilot System For Water Recovery & Reuse: RTS-513

This compact, easy-to-operate newterra Membrane Bioreactor (MBR) system combines activated sludge biological treatment with our advanced MicroClear™ UF flat sheet membrane. The system, which includes features of our modular, scalable solutions, can be quickly integrated for piloting the treatment of wastewater with BOD5 levels of up to 1,500 mg/L. The treated permeate is suitable for reuse in mining and metallurgical processes, industrial processes, crop irrigation and other applications. It includes a single skid containing all pumps, controls and the membrane tank, and a separate 1 m3 anoxic tank and 3.75 m3 aerobic tank.

DynaSand® EcoWash® DynaSand® EcoWash®

The Parkson DynaSand® EcoWash® Filter is a unique system that filters liquid suspensions to the designed effluent quality, while at the same time cleaning the sand bed so the filter is not shut down during the backwash time. Feed water is passed upwards through the sand bed and exits the top of the filter as clean water. At the same time, sand can be removed from the bottom, cleaned and returned to the top.  A small portion of the filtered water is used to wash the sand and leaves the filter as a reject stream.

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The New Standard In Wastewater Aeration The New Standard In Wastewater Aeration

Kaeser Compressors' rotary screw blowers offer superior performance, fast installation, low noise operation, and lowest life cycle costs to help wastewater treatment plant operators and designers revolutionize their plant's aeration system. 

Grundfos Pump Stations Help City Of Greenville (Texas) Grundfos Pump Stations Help City Of Greenville (Texas)

The City of Greenville (Texas) was experiencing high volume growth and needed a solution to increase pump volume and pressure while working within a limited space. The Grundfos pre-fabricated pump stations cut 3 months off of the anticipated construction time and help Greenville solve those problems.

Aquip Media Filtration System By StormwateRx Aquip Media Filtration System By StormwateRx

Aquip is a patented media filtration system for enhanced industrial stormwater treatment. Aquip is available in several performance levels, each specifically designed for the removal of stormwater pollutants such as suspended solids, turbidity, heavy metals (including dissolved metals), organics (e.g. BOD, volatile hydrocarbons, PCBs, PAHs), and nutrients (e.g. nitrogen and phosphorus).

Real-Time Data Solutions To Identify A Stubborn Disinfection Byproduct Threat Real-Time Data Solutions To Identify A Stubborn Disinfection Byproduct Threat

When it comes to trihalomethanes, the disinfection byproducts also known as THMs, a range of methods are available for their removal from water as well as avoiding their creation altogether. While sophisticated, those solutions offer little or no insight into the process. In this Water Talk interview, Rick Bacon, CEO of Aqua Metrology Systems, and Cliff Tormaschy, CEO of Medora Corp., discuss the use of real-time data to identify THM threats and diagnose critical treatment system performance.

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