DRINKING WATER
The Power Of Ductile Iron Pipe: A Solution For Every Application
Ductile iron pipe is a versatile, reliable solution that resists UV degradation, freezing, and physical stress. Its unmatched durability ensures long-term performance in any piping application.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
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![Benefits_Of_Asset_Mgmt_iStock-967487804.jpg]( "Reaping The Benefits Of Proactive Asset Management")
Reaping The Benefits Of Proactive Asset ManagementThe more a water distribution or wastewater collection operation knows about its infrastructure, the better equipped it is to optimize performance, maximize asset life, and prioritize long-term capital investment. Here is a breakdown of enterprise asset management (EAM) opportunities and the advantages they offer — from more timely data collection, to more in-depth cost analysis, to more cost-effective decision-making.
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![chlorate-formation]( "Options For Mitigating The Formation Of Chlorate In Water Disinfection")
Options For Mitigating The Formation Of Chlorate In Water DisinfectionIn this article, read about chlorate, how it forms, how it can be mitigated, and the benefits of on-site generation of oxidants.
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The Most Misunderstood Fact Behind Dissolved Oxygen Sensors (It's The Pressure, Not The Concentration)
A dissolved oxygen sensor ought to be simple to understand. Whether it is membrane or optically based, it gives a signal that is proportional to the concentration of oxygen concentration in water.
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![Water Bubbles GettyImages-1424980326]( "Nanobubble Ozone Technology – Advancing Mass Transfer Through Physics")
Nanobubble Ozone Technology – Advancing Mass Transfer Through PhysicsNanobubble physics enable higher ozone stability and mass transfer efficiency in water. Discover how the negative surface charge of these microstructures improves localized oxidation and penetration into difficult matrices.
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![EHmagFlowmeterCalibrationWWW20-3]( "Challenges With Calibrating Electromagnetic Flow Meters")
Challenges With Calibrating Electromagnetic Flow MetersThis 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.
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![iStock-1164513589_450_300]( "Winning Strategies For Smart Cities, Smart Water, And Water Reuse")
Winning Strategies For Smart Cities, Smart Water, And Water ReuseEvery city facing infrastructure or operational challenges or concerns about maintaining quality of life in the face of population growth or a changing environment has benefits to gain from a unified smart-city approach. Here are some concepts for promoting understanding and acceptance among utility and government decision-makers, plus several examples of benefits already being garnered by smart cities large and small.
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![Ozone Resolves Hydrogen Sulfide & Color Issues in Well Water_PIX]( "Ozone Resolves Hydrogen Sulfide And Color Issues In Well Water")
Ozone Resolves Hydrogen Sulfide And Color Issues In Well WaterA potable water plant in Eastern Angelina County, Texas, serves over 2,000 rural customers.
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![iStock-918114606_450_300]( "The Natural Way: Biological Treatment For Groundwater Contaminant Removal")
The Natural Way: Biological Treatment For Groundwater Contaminant RemovalNature 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.
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![mp-total-sensor]( "New Monochloramine Sensor Technology Measures Free Chlorine And Total Chlorine On The Same Sensor")
New Monochloramine Sensor Technology Measures Free Chlorine And Total Chlorine On The Same SensorTraditional chloramine monitoring methods have drawbacks that complicate water treatment. A new sensor can measure multiple parameters, offering operators better process control.
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Bulk Emergency Chlorine Vapor Scrubber System Restored For Oklahoma City
As a bulk emergency chlorine vapor scrubber system approached the end of its anticipated 20-year useful life, the city engaged Integrity Municipal Systems, LLC (IMS) inspected the equipment and proposed a system refurbishment plan that would ensure proper system performance and safe storage of the 30,000 gallons of corrosive caustic soda contained within it.
DRINKING WATER APPLICATION NOTES
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Fountain Testing Solutions10/29/2021
Accurate fountain (dampening) solution concentration control is essential for consistent, high-quality results in lithography. Low concentration can cause drying on the non-image area of the plate resulting in tinting, scumming, blanket piling, etc. High concentrations, on the other hand, bring about over-emulsification of the ink. This results in weakening of color strength and changes in ink rheology (body and flow properties). Correct concentration will allow the non-image areas of the plate to be appropriately wetted.
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Panametrics Technology Helps Track Potable Water Leaks4/22/2022
Concerned about the volume of water leakages throughout their network, a Swedish water authority turned to Panametrics flowmeters to map their municipal water network -- enabling quick leak identification and fixes.
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VFD Energy Savings For Pumping Applications4/6/2017
In the early days of variable frequency drive (VFD) technology, the typical application was in process control for manufacturing synthetic fiber, steel bars, and aluminum foil.
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Water Treatment In Boilers And Cooling Towers10/29/2021
Most people recognize problems associated with corrosion. Effects from scale deposits, however, are equally important. For example, as little as 1/8" of scale can reduce the efficiency of a boiler by 18% or a cooling tower heat exchanger by 40%!
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Activated Carbon And Adsorption Of Trichloroethylene (TCE) And Tetrachloroethylene (PCE)12/30/2013
Trichloroethylene (TCE) and Tetrachloroethylene (PCE) are two of the most common solvents that contaminate groundwater supplies in the United States. Both solvents see frequent use in the extraction of fat, in the textile industry, in the production of various pharmaceutical and chemical products. TCE is also used as a degreaser from fabricated metal parts, and PCE serves as a component of aerosol dry-cleaning solvents.
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Application Note: Water Flows From The Golden Hills Of California1/20/2010Each morning John Johnson drives the few miles from his smalltown home in northern California to the Center at Pardee Reservoir. Nestled among the foothills of the Sierra Nevada mountain range, the reservoir is a long 100 miles away from San Francisco Bay. By YSI
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Water Determination In Liquefied Petroleum Gas Using GC BID And Ionic Liquid Column Watercol™6/28/2018
Water in petrochemical feedstocks can cause problems for processors. Freezing of pipe lines and valves and poisoning of expensive catalysts are just a few examples.
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Application Note: Simultaneous Determination Of Total Bound Nitrogen (TNb) And Total Organic Carbon (TOC) In Aqueous Samples5/31/2011Total bound nitrogen (TNb) consists of dissolved ammonia, nitrates, nitrites, amines, and other organic nitrogen-containing compounds. TNb measurements represent an alternative to Total Kjeldahl Nitrogen (TKN) analysis for rapid screening of industrial wastewater, drinking water,agricultural run-off, and surface waters. By OI Analytical
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Why Should We Care About NSF/ANSI 61 Certification?3/17/2021
According to National Sanitation Foundation (NSF) and the American National Standards Institute (ANSI), it's a set of standards relating to water treatment and establishes criteria for the control of equipment that comes in contact with either potable water or products that support the production of water.
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Waste Technologies Transform Problems To Profit9/8/2015
Anaerobic digestion processes that radically improve the quality of wastewater while delivering green energy extracted from biological waste streams are emerging as a profitable way for agricultural and food processing industries cope with the twin impact of drought and pollution challenges.
DRINKING WATER PRODUCTS
High-Resolution LCD 4-20 scaled/unscaled registers feature an electronic LCD register with scaled/unscaled output and an analog 4-20 mA DC output through a dual output wire design. They are designed for use with Recordall® Disc Series, Turbo Series, Compound Series, Combo Series and Fire Service meters and connect to SCADA and other external systems.
The SCANAWAY assembly consists of a hollow PVC or stainless steel pipe with suction nozzles that are facing the inner side of the screen. A handle connected to the suction scanner from the outside, allows turning the scanner in a spiral movement so that it rotates inside the screen surface without touching the screen
Calgon Carbon’s liquid-phase equipment systems provide utilities with compact, flexible, and cost-effective means to apply both granular activated carbon (GAC) and ion exchange (IX) technologies to treat even the most difficult water treatment challenges.
Annual filter inspections are a key component to long term, trouble free filter operation. Loprest’s trained service engineers can inspect your treatment system and provide written recommendations for maintenance, improvements and upgrades to keep your filter system operating at its peak performance.
The Series 2100 MEGAFLANGE Restrained Flange Adapter is a field-adaptable wedge style restrained flanging system. It has a restraint ring and a gasket ring to give the maximum amount of flexibility during and after installation.
ECT2 has ready-to-run Pilot PS Series for rapid deployment and implementation around the world.
LATEST INSIGHTS ON DRINKING WATER
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![0421_Honduras_Barrio El Rosario-0030]( "Safe Sanitation For Students: 2025 World Toilet Day")
Every year on November 19, Water Mission observes World Toilet Day — a day designated by the United Nations to focus on the importance of safe sanitation for all.
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![energy flow, data transmission, technological connectivity-GettyImages-2240709017]( "2026 Water Utility Outlook: Regulation, AI, And Resilience In The Face Of Scarcity")
Global Water Outcomes expert notes that “water utilities are facing unprecedented challenges and opportunities,” citing the role of digital solutions moving forward. -
![running faucet-GettyImages-175426122]( "HAAs In The EU: Monitoring For Haloacetic Acids Under The Drinking Water Directive")
In this Q&A, Dr. Elke Süss of Metrohm addresses the urgent need for haloacetic acid testing in response to “one of the most significant updates to EU drinking water monitoring in recent years.” -
![clean, safe water with AI-GettyImages-1314144773]( "Collaborating To Execute The AI-Water Nexus")
Amazon and Xylem partner to tackle Mexico’s leaking water systems as the country balances water scarcity and a growing tech sector.
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![hands holding water drop-GettyImages-1412243977]( "Reshaping Resilience: How Tech Giants And Utilities Are Confronting The Global Water Crisis")
Water scarcity is increasingly impacting sectors from agriculture and energy to urban planning and high-tech manufacturing. Recently, industry leaders gathered to explore how new technologies and complex industrial demands are forcing a fundamental rethinking of water infrastructure.
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![GettyImages-2218879973]( "When Chemistry Meets Water Innovation")
Nobel-winning molecular materials are poised to reinvent purification, desalination, and reuse.
DRINKING WATER VIDEOS
How researchers at UC Merced are developing a better understanding of the three sources of water upon which California depends in order to adapt to the effects of environmental changes and make better use of this most precious of our natural resources.
ABOUT DRINKING WATER
In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA).
Drinking water considerations can be divided into three core areas of concern:
- Source water for a community’s drinking water supply
- Drinking water treatment of source water
- Distribution of treated drinking water to consumers
Drinking Water Sources
Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater.
Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.
Drinking Water Treatment
Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.
There are a variety of technologies and processes that can be used for contaminant removal and the removal of pathogens to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.
The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.
The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.
During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.
Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.
Drinking Water Distribution
Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.
A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.
Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.