DRINKING WATER
Engineering Resilience In Water Supply: How Ozone-Based Oxidation Supports DC Water's Pure Water DC Vision
Securing urban water futures requires shifting toward resilient, multi-source supplies. Advanced oxidation provides a critical barrier against emerging contaminants, enhancing treatment efficiency and ensuring long-term reliability without chemical residuals. Explore the foundations of engineering a decentralized, drought-proof water supply.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
-
![GettyImages-1437987503 washington DC]( "Engineering Resilience In Water Supply: How Ozone-Based Oxidation Supports DC Water's Pure Water DC Vision")
Engineering Resilience In Water Supply: How Ozone-Based Oxidation Supports DC Water's Pure Water DC VisionSecuring urban water futures requires shifting toward resilient, multi-source supplies. Advanced oxidation provides a critical barrier against emerging contaminants, enhancing treatment efficiency and ensuring long-term reliability without chemical residuals. Explore the foundations of engineering a decentralized, drought-proof water supply.
-
Why We Should Use Naturally Occurring Microbes To Save Our Waterways
The most common technologies utilized in the treatment of natural bodies of water that become polluted, or begin to undergo eutrophication, involve primarily some form of physical or chemical treatment such as chemical oxidizers, flocculants, activated carbon and zeolites, and/or mechanical treatments such as dredging. The primary drawback to chemical treatments is that the treatments are based on stoichiometry or molecule to molecule interactions. As a result, they get very expensive when treating large volumes of water.
-
![oakmont-success-story]( "How Strategic Valve Installation Prevented Service Disruption at a Senior Living Facility")
How Strategic Valve Installation Prevented Service Disruption at a Senior Living FacilityLearn how Hydra-Stop’s insertion valve provided new control points to mitigate future disruptions during a service line emergency.
-
ORP And pH — What You Don't Know Can Hurt You
When I look back at 2016 one of the most significant trends I observed was the growing acceptance of ORP measurements, especially for monitoring disinfection. With one caveat, the ORP value measured in a solution provides an unambiguous measure of the disinfection efficacy.
-
![CastleRockCS]( "Thanks To Digital Upgrade, Castle Rock's Asset Management Becomes Model For State")
Thanks To Digital Upgrade, Castle Rock's Asset Management Becomes Model For StateWith a population of 55,000, the town of Castle Rock, Colorado, was named to “Money” magazine’s list of 100 Best Places to Live in America. It’s also a town on the cutting edge of managing its water, wastewater and storm water system assets with the help of the Hydrant and Valve Inspector from AMERICAN Flow Control (AFC) and Trimble Navigation.
-
![lucas_county_case_study___wastewater_disinfection-2]( "Wastewater Treatment Plant Realizes The Importance Of Using Genuine Replacement Parts In Its UV Treatment System")
Wastewater Treatment Plant Realizes The Importance Of Using Genuine Replacement Parts In Its UV Treatment SystemThe Lucas County Water Resource Recovery Facility was experiencing treatment inefficiencies and staff couldn’t figure out why. The issues were stemming from the use of non-OEM, non-genuine UV lamps, quartz sleeves, and ballasts.
-
![Hydrants_valves]( "Making It Work: 174 Hydrants And 280 Valves Installed In 120 Days")
Making It Work: 174 Hydrants And 280 Valves Installed In 120 DaysA timeline of 120 days. Construction in the middle of winter, when temperatures were frigid and snow covered the ground. Despite these challenges, Elite Excavating Company of Ohio, Inc., was able to install 174 AMERICAN Flow Control American-Darling MK 73 fire hydrants and 280 resilient wedge gate valves in sizes 6 to 18 inches in three months.
-
Tank Shark® Active Tank Mixing Proven To Be Superior To Dedicated Tank Inlet/Outlet Design
San Jose Water Company (SJWC) provides drinking water for over a million people in the greater San Jose Metropolitan region and is a recognized leader in drinking water treatment and distribution system water quality management. With over 90 water storage facilities in service, planned maintenance and rehabilitation of capital assets is a key component of SJWC’s CIP program.
-
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.
-
![Getty-1652511983-supply-chain-management]( "Overcome The Supply Chain Disruptions")
Overcome The Supply Chain DisruptionsThe water utility industry is transitioning to wireless smart meters, creating opportunities for small to medium-sized utilities. Cloud-based applications offer automation, data management, and remote access, providing billing solutions, water usage monitoring, and safety tools.
DRINKING WATER APPLICATION NOTES
-
MEGA-STOP Bell Protection System Aids In Pipe Joint Assembly4/13/2021
Water and wastewater piping come in a variety of materials, joints, and diameters. They can meet a multitude of demands and needs for the country's infrastructure.
-
Hemodialysis Patient Health10/29/2021
Controlling dialysate quality is critically important to hemodialysis patient health. Complications as minor as nausea and fatigue or as severe as metabolic acidosis and sepsis can result if dialysate composition is incorrect. All the factors that ultimately affect dialysate composition must therefore be carefully monitored and controlled: proper proportioning and mixing of concentrates with water; the quality of water mixed with concentrates to form dialysate; and the quality of water used in the reprocessing of hemodialyzers, system maintenance and disinfection.
-
Deployment Of NextStep In Reverse Osmosis Systems1/15/2026
Pulsafeeder has secured a significant order for its NextStep series of stepper motor-driven metering pumps, specifically for use in advanced Reverse Osmosis (RO) applications. This deployment underscores the growing demand for precision chemical dosing in high-performance water treatment systems. The order includes NextStep NS1 and NS9 models, each selected for their unique capabilities in high-pressure and low-pressure RO environments.
-
The 'First Line Of Defense' In Protecting Membrane Filters8/9/2019
Multi-element, self-cleaning pretreatment filters optimize membrane filter life and production while minimizing maintenance and downtime.
-
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.
-
Cloth Media Filtration Removes Coal Ash And Coal Fines At Power Plants1/15/2019
Coal-fired power plants generate coal fines and coal ash from a number of sources, including coal combustion residuals (CCR), particularly fly and bottom ash from coal furnaces, and coal pile runoff during rain events. In support of an industry-wide effort to reduce, improve, and remove coal ash ponds, a variety of technologies have been tested and employed. Read the full application note to learn more.
-
Background And Summary Of Tests For The 2000PV Restraint4/13/2021
The 2000PV is a restraint for PVC pipe and the standardized mechanical joint. This product is the result of years of testing and evaluation and its performance has been proven by thousands of hours of proof tests, as well as third-party evaluations. This report describes the 2000PV through the 12" size.
-
Pile Cloth Media Filtration Removes 97% Of Microplastics From Wastewater12/6/2023
Learn about filtering microplastics from industrial wastewater prior to discharge, and how this is one way to effectively reduce the volume of this waste material from entering our surface water.
-
LC-MS/MS Analysis Of PFAS Extractables In Polyethersulfone Syringe Filters Using EPA 537.15/18/2022
A key consideration for any PFAS method is to avoid contamination that can impact the accuracy of data, including those coming from sample preparation techniques such as filtration.
-
Flow Meter Enhances Chlorination System Performance For Municipal Water Department12/12/2017
The water municipality at a mid-size city in the Western region of the U.S. serving a population of about 180,000 people needed to address a chlorine disinfection system problem at one of its water treatment plants.
DRINKING WATER PRODUCTS
The ModMAG® M3000 electromagnetic flow meter is virtually unaffected by density, temperature, pressure and viscosity changes, making it an accurate and reliable long-term metering solution. This meter is approved for Class 1, Division 2 environments.
iPERL+ redefines water metering, offering an integrated solution that not only ensures seamless system compatibility but also maintains unmatched accuracy in water usage measurement for your utility. With enhanced data logging capabilities and a choice between polymer and metal flow tube casings, iPERL+ is tailored to meet the unique needs of your utility.
The Ms6 is a plug-and-play flow meter that works right out of the box, and accurately measures liquid chemical feed from ranges of 10-5,000 mL/min and 100-10,000 mL/min.
The PHOSPHAX sc Phosphate Analyzer is environmentally controlled for rugged, outdoor installations, provides a wide measurement range for a variety of wastewater and drinking water applications (e.g. in the activated sludge basin, for phosphate elimination and my more), and comes with the fully featured "Plug & Play" digital controller.
From the experts in chlorine management comes a multi-parameter water analysis system offering both chlorine measurement and control in one versatile instrument. Tailor the modular MicroChem®3 to your individual application with up to three measurement parameters. Designed with extensive customer input, the easy and innovative system includes an intuitive touchscreen display, menu-driven software to easily guide users through set-up and operation, and a USB interface for software updates and data log downloads.
The WATERFLUX ,3300 is an electromagnetic flowmeter (EMF) for demanding water applications and custody transfer operations (MID MI-001, OIML R49; MI-004). The high-end meter is particularly suitable for applications requiring high accuracy and extensive diagnostics. With its rectangular and reduced cross-section the EMF enables a stable measurement even at low flow rates. This way, the WATERFLUX ,3300 offers a much larger turndown ratio (1000:1) than mechanical flowmeters (e.g. turbine meters) in drinking water distribution networks.
LATEST INSIGHTS ON DRINKING WATER
-
![Cutting Red Tape-GettyImages-502421630]( "How The NEPA Rollback Will Impact Water And Wastewater Industries")
The White House has finalized plans to roll back rules under the National Environmental Policy Act (NEPA), narrowing its focus and limiting what the current administration claims are needless delays for federal approval of water, energy, and other infrastructure plans. For water and wastewater utilities, the changes could speed up permitting for critical projects, although experts warn the tradeoffs could do more harm than good.
-
![Ultraviolet lamps for water disinfection-GettyImages-1271779123]( "Setting Global Standards: Inside North America's Only Full-Scale UV Disinfection Validation Facility")
Setting Global Standards: Inside North America's Only Full-Scale UV Disinfection Validation FacilityPortland's industry-leading facility reaches 100 reactor validations in 23 years.
-
![Water analysis, purification, filtration, treatment, quality monitoring, contamination detection-GettyImages-2234293664]( "Why Haven't Field Tests For Lead In Water Gone Mainstream?")
Given the maturation of sensor technology, the scientific and operational hurdles to portable lead analysis are somewhat surprising — but surmountable.
-
![peace-athabasca-delta-flood-mapping-265153]( "What Is Bathymetric Modeling? And How Can It Protect Ecosystems While Saving Resources?")
Bathymetric modeling maps underwater terrain. It also helps guide planning, prevent hazards, and build climate-resilient infrastructure.
-
![Large datacenter-GettyImages-2196655358]( "Building Your Water-Positive Data Center Roadmap: A Step-By-Step Implementation Guide")
The data center industry stands at a critical juncture. As facilities scale to meet exponential computing demands, water consumption has emerged as a defining operational challenge. Traditional approaches focused on water efficiency are no longer sufficient. -
![pregnantwater_Getty-2241371016]( "PFAS In Pregnant Women's Drinking Water Puts Their Babies At Higher Risk, Study Finds")
When pregnant women drink water that comes from wells downstream of sites contaminated with PFAS, known as “forever chemicals,” the risks to their babies’ health substantially increase, a new study found. These risks include the chance of low birth weight, preterm birth, and infant mortality.
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.
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.
In this episode of Ozone Talks, host Sannel Patel takes viewers deep inside Pinnacle Ozone Solutions’ cutting-edge ozone generation technology. Joined by senior engineer Eric Francis and technician Dayton Julius, the discussion centers around the Quad Block ozone cell—a patented, modular system redefining ozone production through innovation, precision, and durability.
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.