Municipal wastewater systems in South Dakota need upgrades, but costs are a major barrier to completing the task.
Water utilities are installing automated meter reading (AMR) and advanced metering infrastructure (AMI) systems more frequently. These systems often help utilities improve customer relations and provide valuable real-time data to improve operations. The ability for various meters to communicate with AMR and AMI technology has become more important as these systems become commonplace.
Arsenic is a global environmental health issue. Since it was recognized in the nineties many techniques have been developed on the remediation on arsenic contaminated drinking water. Solving people’s exposure through drinking water to arsenic is, however, a complex problem.
The need to recycle wastewater has grown dramatically in various markets. Due to the increasing drought, rural villages suffer from lack of water for agricultural needs. Fluence delivers a revolutionary aerobic wastewater treatment solution is modular and reduces energy usage by up to 90% compared to conventional treatment.
Local and decentralized wastewater treatment and reuse is known to be a cost-efficient resource, which is why more and more communities are adapting this planning approach.
Metagenomics through the incorporation of next generation sequencing (NGS) is changing the way wastewater treatment plants are monitored and understood. NGS can be used in aerobic and anaerobic systems to monitor for problematic organisms, such as filamentous and foaming bacteria, and beneficial organisms, such as ammonia-oxidizing bacteria and methanogens.
By replacing gas chlorine with on-site hypochlorite generation, Nashville was able to improve the safety and longevity of its water plants to accommodate the growth of the “Heart of Country Music” far into the future. At a recent water conference, Glen Doss, Treatment Plant Manager stated, “In 2016, the last gas chlorine railcar left to large applause.”
Every year, World Water Week, a conference organized by the Stockholm International Water Institute(SIWI), brings together experts from around the world to discuss global water issues. This year’s event focused on Water, Ecosystems and Human Development, with discussions concentrating on how business, NGOs and government agencies are collaborating to address water-related challenges.
With the impacts of Hurricane Florence continuing to unfold, coastal communities in the Southeast will soon be looking to other coastal areas, like Houston, as models for rebuilding resiliently. By doing so, they can speed their recovery and build back in smart ways — because that’s what resilience is all about.
In the wastewater treatment industry, coagulation has become one of the most widespread processes for effectively separating contaminants and effluent. But coagulation is a complicated and sensitive process, one that alters the chemical balance of the wastewater in order to strip it of unwanted constituents. As in many such processes, pH plays a critical role, and treatment professionals must analyze it closely if they want to properly coagulate their product.
After 18 water mains broke in Hoboken, NJ, over the summer, the city council and city administration moved to take bids for a new water company to replace SUEZ Water.
Three thousand litres of water — that is the amount needed to produce the food each British person eats every day. This is according to a new study into the “water footprint” of diets in Western Europe, conducted by the European Commission and published in Nature Sustainability.
Corrosion control has always been a priority for distributing safe drinking water throughout the world’s networks of pipeline. This has become all the more critical following the outrageous lead poisoning revelations in Flint, MI — an incident caused directly by corrosion of the city’s lead-based infrastructure.
Nearly every industry requires water and wastewater treatment to some degree. From food and beverage to pulp and paper operations, influent and effluent must meet certain conditions to adhere to regulatory and/or performance requirements, and water used during the process must conform as well.
As officials continue to tabulate the fallout from Hurricane Florence, it is clear the damage wrought by polluted floodwaters will be among the major challenges the region faces.
Flow meter accuracy is critical for process control but can be hampered by upstream and downstream flow disturbers. This problem may be addressed during the design process, though in some circumstances it’s impossible to eliminate disturbers.
Most of us don’t have to think about the vital infrastructure that supports our society. Water is delivered to our homes and businesses 24/7, and wastewater is efficiently and cleanly whisked away. The ability of our utilities to manage these services means we only take notice at times of inconvenience: water outages, sewer blockages, or stormwater overflows.
Central district heating systems have gained attention in recent years because they can be more efficient than localized boiler units. The efficiency of district heating is usually due to power generation plants being able to produce heat and electricity simultaneously. District heating also helps prevent pollution by using advanced flue gas cleaning techniques.
A major power plant in Thailand is using 3M™ Liqui-Cel™ Membrane Contactors to remove carbon dioxide from a DI water system. The system is an expansion project and will be used to feed a high pressure boiler. Liqui-Cel membrane contactors are being used to lower the CO2 inlet into an Ionpure Electrodeionization (EDI) system. Carbon dioxide adds an ionic load to the EDI system, which can reduce the performance of the system. Manufactures of the EDI equipment suggest lowering the inlet CO2 to reduce the load on the equipment and improve the water quality.
For any drinking water or wastewater treatment operation, pH neutralization is never far from top-of-mind. The regulatory standards for pH to which effluent must adhere, also known as “pH neutralization,” are central to ensuring that treatment is performed accurately and that the water or wastewater leaving a plant is safe.
The manufacturing of soda ash from Trona is a multi-step process that results in the production of a waste liquor that contains significant levels of organic contamination.
The Hagerstown Wastewater Treatment Plant in Maryland incorporated several plant modifications, one of which was the conversion of their disinfection process from the use of ozone to UV.
The Lariana Depur wastewater treatment plant in Fino Mornasco, Italy, treats wastewater from multiple textile manufacturers in the Como region, known as the heart of the textile industry. Since 1994, ozone has been used effectively as a polisher to remove the dark blue-purple color — the result of the dyes used in the textile dyeing and printing process — from the water.
It is no secret that the number of landfills has been steadily decreasing across the United States. As more and more cities adopt ‘zero waste to landfill’ sustainability goals, the number of landfills has shrunk from 6,326 in 1990 to 1,738 in 2015. Decreasing landfills has meant increased waste hauling costs for wastewater treatment plants (WWTPs) as sludge travels farther distances to reach landfills.
An estimated 90 million illnesses each year are caused by exposure to microbial contaminants in U.S. recreational waters, costing approximately $2.2- $3.7 billion in medical bills. Much of the contamination is a result of human or other animal feces getting into the water.
Two states have mandated that public water systems test their water for algae toxins, and more states could follow suit, according to NPR.
Water utilities in the U.S. were once operated almost completely by private companies. That began to change when Boston, New York, Los Angeles, and other large cities expanded in the late 19th century. Water utilities failed to manage the increased demand and government leaders stepped up to assume responsibility for adequate water resources. That’s been the case for decades, but now water problems are critical again.
Our environment is rife with testimonials to the law of unintended consequences. When it comes to water treatment, the compound 1,2,3-trichloropropane (TCP) is the latest surprise making its way through the remediation lifecycle.
During 2017’s Hurricane Harvey, the wettest tropical storm on record in the United States, over 52 inches of rain fell in the Houston area. The Vaughan pumps ran continuously for 72 hours with no plugging incidents and no problems while pumping over 2.5 million gallons of unscreened sewage through the lift station. It never flooded and none of the 150 homes served by this lift station experienced sewer back-ups.
This month, the Bloede Dam will be removed from the Lower Patapsco River near Ilchester, Maryland. The restoration is a one-of-a-kind natural experiment that will help test how relatively inexpensive drones can help scientists like me understand the integrity of streams and rivers.
On the banks of Puget Sound and in the shadow of Mount Rainier exists Tacoma, Washington. The city is home to approximately 211,000 residents, making it the third largest in the state of Washington. Tacoma’s vision is one focused on stewardship and resiliency, as outlined the Environmental Services Department strategic plan: “We believe everything we do supports healthy neighborhoods and a thriving Puget Sound, leaving a better Tacoma for all.”
Can you imagine calling the electric company to demand a rebate because you had just received your bill and realized that over the past month, you inadvertently left all your lights on? As ludicrous as this scenario seems, it’s exactly the type of call water utilities receive from their customers.
Condensation, build up, obstructions and silt can cause difficulties in making reliable level measurements in lift station wet wells. New trends in low cost radar units solve these problems.
In this video, we discuss the curious science that is the inclined plate settler (also known as a Lamella). The process is a bit counter-intuitive, but through an interesting experiment, this video shows how they work. Inclined plate settlers can reduce required footprint by 80% compared to traditional gravity settling.
New York American Water is under scrutiny for what public officials see as questionable charges on customer bills.
Following a disaster like the back-to-back hurricanes that hit Texas, Florida, and Puerto Rico in 2017, water systems can become flooded and unable to provide safe drinking water to communities. EPA researchers recognized the need for portable water treatment systems that can quickly and cost-effectively provide safe drinking water to affected communities following a disaster.
Despite the destruction of Hurricane Harvey in August 2017, Duperon® wastewater screening systems in the cities of Cuero and Refugio, Texas – approximately 150 miles southwest of Houston – were virtually unaffected by the storm. Duperon’s FlexRake® bar screens, installed at both locations as well as dozens of other sites in and around Houston, remove objects like rags, paper, plastics, and metals to prevent damage and clogging of downstream treatment equipment. Both communities found essentially no damage to their wastewater screening equipment.
It has long been established that predictive maintenance of existing equipment will reduce operating costs and help ensure safe operation.
A farm in Lower Saxony with sow breeding, floor-feeding laying hens and biogas plant is installing a BlueBox Ultra for the treatment of manure from the Swiss agri-tech company Bluetector.
Governor Tom Wolf today announced the establishment of a multi-agency PFAS Action Team and other executive actions to address growing national concerns surrounding per- and polyfluoroalkyl substances (PFAS). These man-made chemicals are resistant to heat, water and oil, and persist in the environment and the human body, heightening concern among residents in areas of the state in which these chemicals have been identified in drinking water.
Landia has been awarded a contract to supply a second set of submersible propeller mixers for a major project in Yorkshire that is producing a high-value, multi-nutrient organic fertiliser.
In a ceremony in the City of Industry with the San Gabriel Basin Water Quality Authority, the U.S. Environmental Protection Agency (EPA) recently announced the start of construction of a groundwater treatment system in Puente Valley as part of ongoing cleanup at the San Gabriel Valley Superfund Site.
The Water Environment Federation (WEF) proudly announces the 2018 WEF Awards recipients for published papers. The WEF Published Papers Awards recognize WEF members for valuable research that has the potential for broad contribution to industrial wastewater management.
De Nora, a leading designer of safe, innovative, and sustainable water disinfection and oxidation, filtration and electrochlorination solutions, today announces the launch of its next generation of ClorTec® on-site sodium hypochlorite generators at WEFTEC, the Water Quality Event.
Ovivo Inc. ("Ovivo"), a global provider of water and wastewater treatment equipment, technology and systems, is pleased to announce the acquisition of the business of FilterBoxx Water & Environmental Corp. and its subsidiaries (collectively "FilterBoxx").
Centrisys/CNP (Kenosha, WI), a leader in decanter centrifuge technology and systems for nutrient recovery and sludge optimization, has announced their exclusive distributorship for the Passavant hydrograv adapt System in North America (U.S. patent pending).
It’s now possible to both quickly and easily identify all microbes in a sample and determine the abundance of specific microbes as LuminUltra, a global market leader in rapid and portable microbiological monitoring tools, has acquired InstantLabs, a developer of DNA-based measurement technologies.
The responsibilities of the Royal Irrigation Department of Thailand (RID) include developing the nation’s irrigation systems and managing its flood control infrastructure.
These documents provide technical descriptions of the signal-in-space eLoran waveform and two accepted data channel techniques that include explanations, and recommended practices.
Pipeline Renewal Technologies, a distributor of underground pipeline rehabilitation solutions, has released an “Installation Logbook for Mechanical Point Repair.”
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17 years of 100% effectiveness from our previous TrojanUV system made us confident that upgrading with TrojanUV would continue this excellent performance. Read the case study. |
Robert Renner, Chief Executive Officer
Water Research Foundation
Visit the Water Intelligence Panel page.
Atlas Copco ZB centrifugal air blowers have proven their efficiency and reliability over many years. Thanks to the unique design of centrifugal frictionless direct drive, you get a constant air flow and the highest air volume for all your low pressure applications like waste water treatment, fermentation, printing.
Complete systems for the automatic and constant measurement and control of elevated chlorine concentrations.
Cloth media filters are designed for a variety of tertiary treatment applications
Increase filtration capacity and performance in existing footprint.
The Rosemount CX1100 In-Situ Oxygen Analyzer provides measurement of oxygen in clean-burning applications. Get accurate oxygen measurements to optimize combustion reactions, reduce energy costs and meet environmental regulations. All welded construction and no reference gas requirement reduces installation and maintenance costs.
Introducing SmartRun, a pump controller solution for pump stations with up to three alternating pumps. An integral part of the Flygt Experior® concept, this pump-control unit lets your pump take care of itself, freeing the pump station from debris, setting the optimal speed for energy efficiency and cost savings, as well as communicating with external monitoring equipment for peace of mind. SmartRun handles pump cleaning, pipe cleaning, sump cleaning, soft starts and stops; giving you to a new level of reliability and efficiency in an easy-to-install solution. The integrated intelligence and variable speed control mean it’s the perfect match for Flygt N-pumps – a combination that can potentially reach energy savings up to 50%
LGR-ICOS Series 950 laser process analyzers accurately measure gas concentrations with extraordinarily high sensitivity, fast response and over a wide dynamic range in both simple and complex mixtures.
The need to recycle wastewater has grown dramatically in various markets. Due to the increasing drought, rural villages suffer from lack of water for agricultural needs. Fluence delivers a revolutionary aerobic wastewater treatment solution is modular and reduces energy usage by up to 90% compared to conventional treatment.
Local and decentralized wastewater treatment and reuse is known to be a cost-efficient resource, which is why more and more communities are adapting this planning approach.
In this video, we discuss the curious science that is the inclined plate settler (also known as a Lamella). The process is a bit counter-intuitive, but through an interesting experiment, this video shows how they work. Inclined plate settlers can reduce required footprint by 80% compared to traditional gravity settling.
Ozone is used widely for water treatment in Europe and Asia. Now, with more than 40 years of global experience, De Nora is bringing CAPTIAL CONTROLS Ozone to North America.
A powerful oxidant with fast reaction time, no added chemicals, and reduced disinfection byproducts, Ozone is an appealing and growing option for water and wastewater treatment. Watch the full video to learn more.
Sun Chemical Advanced Materials delivers SEPAREL® hollow fiber membrane modules for liquid degassing, a proprietary technology from the DIC Corporation. SEPAREL modules are optimized for the degasification of various liquids, including water, inkjet ink, and a range of corrosive chemicals. Learn more.
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