DRINKING WATER
Your Chlorine Sensor Is Lying to You — Here's 65 Days Of Proof
The operators at Compton Durville Water Treatment Works thought their chlorine dosing was under control. Their Siemens Depolox membrane sensor showed residuals right at setpoint. The PID loop was doing its job. On paper, everything looked fine. It wasn't.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
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Safe And Sustainable Drinking Water For Over 200,000 People
A private company that provides water via privately-owned-and-operated well fields with enough annual water supply to provide sustainable drinking water to more than 200,000 people faced a number of sampling, testing, and monitoring challenges. Lab tests and environmental monitoring costs were high and the data collected was not easily integrated with their SCADA system.
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![HOD-UV-chile]( "RO Membrane Protection For A Desalination Plant In Mejillones, Chile")
RO Membrane Protection For A Desalination Plant In Mejillones, ChileRead about a seawater desalination plant that presented with several performance issues and chose the HOD UV system to control biofouling on the RO membranes.
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Digitization, Water Concerns, And Smart Meters
As our society continues to embrace digital technology, it’s fair to say that the world of water utilities will be, a major beneficiary of this revolution.
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![Filtration-GettyImages-157422468]( "The Role Of Reverse Osmosis (RO) Membranes In The Battle Against PFAS")
The Role Of Reverse Osmosis (RO) Membranes In The Battle Against PFASAs the global concern over per- and polyfluoroalkyl substances (PFAS) contamination continues to escalate, innovative solutions are becoming increasingly pivotal in the pursuit of clean and safe water resources. The City of Rome Water and Sewer Division conducted a comprehensive pilot to identify a treatment process for removing PFAS from the water supply, including high recovery reverse osmosis technologies.
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![article-5-feature]( "Addressing Water Treatment Challenges: Technology Access Limitations By Small, Rural Water Utilities")
Addressing Water Treatment Challenges: Technology Access Limitations By Small, Rural Water UtilitiesWith aging infrastructures, lean and limited personnel, lower budgets, and less accessible, often remote locations, smaller and rural water treatment plants are challenged in maintaining operations while understanding new and important technologies in improving contaminant removal in water treatment.
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![macallan-distillery-instrumentation_1183]( "ABB Flowmeters Help Keep Macallan Whisky At Its Peak")
ABB Flowmeters Help Keep Macallan Whisky At Its PeakAccurate measurement delivered by a range of ABB flowmeters is helping the company behind the world-renowned Macallan whisky brand to maintain its high product quality standards following its move to its new 187.2M USD distillery.
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![spencer-TN]( "Tennessee Town Checks For Water Loss In More Than 8,000 Feet Of Pipe")
Tennessee Town Checks For Water Loss In More Than 8,000 Feet Of PipeLearn how Electro Scan helped a rural Tennessee town check for water loss and to find the sources of its non-revenue water (NRW).
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Solution Highlight: GeneCount NGS Services
LuminUltra’s GeneCount® Next Generation Sequencing (NGS) service takes microbial monitoring to the “next” level by sequencing the 16S rRNA gene, which is present in all bacteria and archaea. This gene contains sections that allow individual organisms to be differentiated from one another and classified to the genus level. Based on this classification, we gain information about how they could impact industrial water systems.
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![Stinkin' Drinkin' Water No More]( "Stinkin' Drinkin' Water No More: Oxidation/Filtration Removes Hydrogen Sulfide")
Stinkin' Drinkin' Water No More: Oxidation/Filtration Removes Hydrogen SulfideAdEdge Water Technologies, LLC was contacted by Aqua Utilities Florida to provide a hydrogen sulfide removal system for the Lake Josephine community, located in Highlands County, FL. The treatment goal for the system was to reduce the levels of hydrogen sulfide to the nondetectable odor threshold of <0.05 mg/l.
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![The Benefits Of Arming Your Consumers With Their Water Usage Data]( "The Benefits Of Arming Your Consumers With Their Water Usage Data")
The Benefits Of Arming Your Consumers With Their Water Usage DataModern-era communication networks and data storage capacities are rapidly transforming the relationship between water utilities and their customers. The technology and infrastructure that we have today can provide timely water usage data directly to customers’ cell phones, creating the most transparent relationship that we have ever seen between water provider and consumer.
DRINKING WATER APPLICATION NOTES
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Determination Of Polycyclic Aromatic Hydrocarbons In Seafood4/20/2015
Polycyclic Aromatic Hydrocarbons (PAHs) are a large group of organic compounds found naturally in the environment. PAHs are monitored by the US Environmental Protection Agency due to their carcinogenic characteristics.
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LC-MS Analysis Of 33 PFAS Compounds In 5 Minutes11/4/2021
In response to environmental testing demands for faster LC-MS analyses, the new Ascentis® Express PFAS HPLC and delay columns allow the highly efficient separation of 33 PFAS compounds in 5 minutes with reduced background contamination.
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Aries Arsenic Reduction1/7/2026
Arsenic has no smell, taste, or color when dissolved in water even in high concentrations. It is a potential concern to those who live in areas with high natural deposits of arsenic, receive runoff from orchards, or from glass and electronic production waste. Long-term exposure to arsenic can cause a number of harmful effects on the human body including cancer, skin lesions, cardiovascular disease and diabetes, among others.
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Application Note: Using Real-Time Telemetry For Ecological Monitoring Of Coastal Wetlands2/3/2011The Grand Bay National Estuarine Research Reserve (NERR)in Mississippi is one of 27 protected estuarine reserves across the United States. By YSI
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LC-MS Analysis Of PFAS Compounds In EPA 533 After Supelclean™ ENVI-WAX SPE Cleanup8/29/2022
This application note demonstrates the extraction and subsequent analysis of 25 related analytes from water using Supelco SPE cartridges.
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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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Protecting Pumps From Dead Head Conditions4/6/2017
The C445 motor management relay offers the most configurable protection options in the industry, with features specifically designed to protect critical pumps from costly damages due to dead-head and other underloaded or starved pump conditions.
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Application Bulletin: Reverse Osmosis3/19/2008
Osmosis is the phenomenon of lower dissolved solids in water passing through a semi-permeable membrane into higher dissolved solids water until a near equilibrium is reached
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How Activated Carbon Works To Purify Air And Water10/31/2019
The first step is to define the performance limiting factors in the application. For this application, most of the adsorber is used for MTBE adsorption in the ppb concentration range. Adsorption of BTEX, TBA, or humic acids or other total organic carbon (TOC) components are removed by the front end of the column.
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Network Monitors Water Quality In Shale Gas Drilling Region9/2/2011High-pressure injection of water, sand, and chemicals that fracture shale deposits deep underground to free trapped natural gas is employed by drillers tapping the Marcellus shale beds, a geologic deposit that stretches from central New York to Virginia and contains gas believed to be worth hundreds of billions of dollars. By YSI
DRINKING WATER PRODUCTS
The OPTISONIC 7300 is a universal 2-path ultrasonic gas flowmeter for process and utility gas measurements in oil and gas refineries or the chemical or petrochemical industries. It is also suitable for non-custody transfer natural gas applications or applications with (compressed) air, mixed or flue gases (up to +180°C / +356°F).
Cloth media filters are designed for a variety of tertiary treatment applications
The Capital Controls® VEGA™ is a disposable chlorinator vacuum regulator vent gas arrestor designed to treat occasional chlorine gas vent releases that may accompany chlorine container changeovers and fouled vacuum regulator inlet valves. The field tested VEGA prevents nuisance tripping of chlorine room air sensor alarms; helps compliance with local, state and federal code restrictions against exhausting chlorine fumes outside of a building; keeps the building free from chlorine related acid corrosion.
Endress+Hauser offers a complete assortment of compact thermometers, modular thermometers, thermowells, measurement inserts, transmitters and accessories for all types of process industries such as Oil & Gas, Chemicals, Food & Beverage, Life Sciences, Primaries & Metal, Power & Energy.
Aqua-Aerobic® Membrane Systems featuring NO BREAK Aqua MultiBore® membranes are designed to effectively remove suspended solids, particulate phosphorus, bacteria, cysts and other harmful impurities, resulting in safe, high quality water
Geospace Technologies offers a complete line of AMI water meter connector cables, specifically designed and manufactured to meet the rugged requirements for in-pit, underwater applications. Geospace’s unique design ensures total moisture sealing for even the toughest underwater environments, yet they are easily re-entered for troubleshooting a transponder or for a meter swap-out.
LATEST INSIGHTS ON DRINKING WATER
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![Smart industry, worker safety technology-GettyImages-2218674119]( "Geotechnical IoT Shifts Water Infrastructure From Reactive To Predictive")
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.
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![Water Drop with brain-GettyImages-481129858]( "When Drinking Water Raises Bigger Questions About Brain Health And Environmental Risk")
A new study linking certain groundwater sources to higher Parkinson’s risk underscores a broader question for the water sector: how environmental exposures in drinking water may influence long-term health. -
![Water Treatment system for boiler station-GettyImages-914817776]( "Filtration Media For Municipal, Industrial, And Landscape Water Treatment: Legacy And Novel Technologies")
The growing demand for water across a variety of sectors combined with the increasingly understood complexity of emerging contaminants is creating a dynamic marketplace for filtration media. The goal of selecting the right filtration media is not to meet minimum standards but to achieve the right balance of performance, durability, and operational simplicity to ensure long-term compliance and cost-effective operation.
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![getty-1314144854-AI-water-robot-hand]( "Scaling Water Reuse: New State Regulatory Guides And What They Mean For Treatment Design")
Emerging state water reuse regulations are driving adoption of ozone and advanced oxidation, requiring flexible, high-performance systems to meet pathogen, trace organic, and DBP control objectives.
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![GettyImages-2153059351-gloved-hand-with-test-tube-testing-water]( "EPA's Proposed Perchlorate Regulation: What It Means For Treatment Engineers And Oxidation Strategies")
EPA’s proposed perchlorate regulation challenges utilities to integrate advanced oxidation and separation technologies, enabling reliable removal, regulatory compliance, and flexible treatment for emerging contaminants.
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![Ozone Contactors]( "Ozone Contactors: The Engineering Variable That Determines Oxidation Success")
Ozone system performance hinges on reactor design, not generator size. Efficient mass transfer, hydraulic integrity, and contact time ensure consistent oxidation, reduced energy use, and reliable treatment results.
DRINKING WATER VIDEOS
V-Bio Polyethylene Encasement is the latest scientific advancement in corrosion control for ductile iron pipe. In this interview with Water Online, Maury Gaston of American Ductile Iron Pipe and American SpiralWeld Pipe talks about the many benefits of iron pipe and the company’s improved polyethylene encasement, including how its revolutionary formulation allows for complete confidence on the part of the owner, engineer and municipality that no matter how aggressive the soils, the rugged iron pipe installed will last for generations.
This 45-minute webinar will explore the latest technology and methodologies that are transforming water management. Participants will gain a comprehensive understanding of how real-time data analytics can significantly enhance the efficiency and accuracy of water-loss detection and proactive management.
In Raleigh, N.C., there's a house... or what looks like a house. What's hidden inside is more important than most people realize.
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.