• Double Duty Flow Measurement: How To Conquer Changing Flow Conditions And Tight Footprints
    Double Duty Flow Measurement: How To Conquer Changing Flow Conditions And Tight Footprints

    While accurate flow measurement is critical for most industries, flow conditions that change over time can make it difficult to properly size a flow meter. Replacing a meter as the flow changes is impractical and expensive. In addition, flow disturbers can greatly impact meter accuracy, so addressing that issue is important as well. A uniquely designed flow meter may be the solution to both problems.

  • What’s In Your Water? An Updated Analysis
    What’s In Your Water? An Updated Analysis

    NRDC’s new analysis of the most recent EPA data finds that nearly 30 million people in the United States drank water from community water systems that violated the EPA’s Lead and Copper Rule between January 2015 and March 2018.

  • How To Maintain Chlorine Residuals In Small Or Remote Systems With Calcium Hypochlorite
    How To Maintain Chlorine Residuals In Small Or Remote Systems With Calcium Hypochlorite

    Small water systems serving communities, schools, and commercial establishments are required by regulatory agencies to maintain a chlorine residual in their distribution systems.

  • USGS Shares Wellspring Of Insight On Groundwater Trends
    USGS Shares Wellspring Of Insight On Groundwater Trends

    If your customer base is among the 140 million people who depend upon groundwater for drinking water, irrigation, or agriculture, it is important to know whether you can expect the quality of your source water today to be the same tomorrow. Fortunately, a recent update to the first-of-its-kind assessment of trends in groundwater supply has been announced by the U.S. Geological Survey (USGS) to help you identify emerging problems. The results are detailed in an informative and easy-to-use interactive map.

  • Baltimore To Vote On Water Privatization Ban
    Baltimore To Vote On Water Privatization Ban

    Baltimore voters will consider a measure to ban privatization of the city water system this November, potentially making it the first major city to do so.

  • Price Tag On Repairing South Dakota Wastewater: $160M
    Price Tag On Repairing South Dakota Wastewater: $160M

    Municipal wastewater systems in South Dakota need upgrades, but costs are a major barrier to completing the task.

  • How To Boost Water System Efficiency With Smart Output Technology
    How To Boost Water System Efficiency With Smart Output Technology

    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.

  • Eliminating A Silent Killer — A Critical Review On The Viability Of Decentralized Arsenic Removal Systems For Rural Communities
    Eliminating A Silent Killer — A Critical Review On The Viability Of Decentralized Arsenic Removal Systems For Rural Communities

    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.

  • MABR Benefits And Applications
    MABR Benefits And Applications

    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.

  • The Aspiral MABR Plant
    The Aspiral MABR Plant

    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.

  • Sequencing Your Bioreactor – Who’s Doing The Work?

    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.

  • Upgrading From Gas Chlorine To On-Site Hypochlorite Generation To Improve Safety And System Resilience

    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.” 

  • The Value Independent Certification Brings To Global Water Stewardship

    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.

  • Following Florence, Lessons From Harvey In Recovery And Resilience

    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.

  • The Role Of pH Measurement During Coagulation

    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.

  • Hoboken Searches For New Water Utility After 18 Main Breaks

    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.

  • Meat-Free Diets Could Cut Our 'Water Footprint' In Half, Say Scientists

    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.

  • Measuring pH And Its Role In Corrosion Control

    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.

  • The Importance Of pH Measurement During Industrial Treatment

    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.

  • Portrait Of Hurricane Florence Fallout Emerges

    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.

  • How To Get Accurate Flow Measurements Despite Flow Disturbers

    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.

  • Sending Your Wet Weather Problem Back To The Cloud(s)

    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. 

  • Oxygen Removal From The Feedwater Of A Central District Heating System

    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.

  • Power Plant Uses Membrane Contactors To Remove CO2 From Water

    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.

  • How To Utilize pH Neutralization Systems And Adhere To Discharge Regulations

    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.

  • Product Recovery Through Ozone Oxidation Of Waste Liquor

    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.

  • Pure Oxygen Injection Into A Pipeline

    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.

  • Wastewater Plant In Como, Italy, Upgrades To De Nora Ozone For Significant Savings

    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.

  • How Data And Nature Can Combine To Help Small Wastewater Treatment Plants Address Huge Hauling Costs

    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.

  • Microbial Source Tracking: How Did That Get In There?

    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. 

  • Oregon, Ohio Regulate Algae. Will More States Follow Suit?

    Two states have mandated that public water systems test their water for algae toxins, and more states could follow suit, according to NPR.

  • Government Leaders Are Beginning To Turn To Collaborative Joint Ventures For Water Projects

    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.

  • Making TCP Removal Almost As Easy As 1, 2, 3

    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.

  • Hurricane Tested, Texas Approved

    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.

  • Drones To Track One Of The Largest Dam Removals On The Eastern Seaboard

    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.

  • Wastewater Management System Helps City With Consolidation Of Data, Reduction Of Manual Input

    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.”

  • Smart Meters Educate Consumers On Water Usage

    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.

  • Level Measurement In Water And Wastewater Lift Stations

    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.

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