DRINKING WATER

GettyImages-2153059351-gloved-hand-with-test-tube-testing-water From Utility To Ally: Smart Water Management For Customer Satisfaction

Smart water technologies improve customer satisfaction through accurate billing, leak detection, and data-driven insights, helping utilities build trust, reduce losses, and enhance operational efficiency.

DRINKING WATER CASE STUDIES AND WHITE PAPERS

  • Mussel Fouling Prevention At Parker Dam

    Atlantium's HOD UV system was chosen by the US Bureau of Reclamation to prevent mussel fouling in dams. The system adjusts UV dose rate based on water quality and has been installed in multiple locations.

  • What Is PFAS?

    PFOA (perfluorooctanic acid) and PFOS (perflurooctane sulfonate) are organic synthetic chemicals that have been used in manufacturing a multitude of industrial and consumer-based products including coatings, carpeting, and fire-fighting foams. Over several decades, they have contaminated the environment, specifically our drinking water sources, causing significant health concerns that recently prompted the EPA to take action.

  • Drinking Water Treatment: Tianjin, China

    Favorable reviews of UV technology in wastewater applications influenced Tianjin Economic Development Area (TEDA) Water Supply General Company to investigate the potential of using UV for drinking water applications at one of its water treatment plants.

  • New Data Management Capabilities Help Labs Run Smoothly

    Laboratory performance is critical for evaluating water treatment operations — from operational and disinfection efficiency to regulatory compliance reporting to human health and safety. Errors, oversights, or incomplete documentation can plague even the most finely tuned water treatment utilities. Here is a quick review of tools and techniques that can improve workflow accountability.

  • An Advanced Approach To 1,4-Dioxane Treatment (Article)

    Because many locations dealing with groundwater contamination generally have multiple micropollutants to remove, consulting engineers and water treatment plant managers are often put in a position to seek additional or alternative treatment approaches other than activated carbon or reverse osmosis.

  • Bulk Hypochlorite Disinfection System Replaced With On-Site Hypochlorite Generation System Saving About $160,000 Per Year In Materials

    Originally built to treat 10 million gallons per day (MGD), the Quail Creek Water Treatment Plant in Washington County, Utah, now has an operational capacity of 60 MGD and a design capacity of 80 MGD.

  • Retrofit Significantly Reduces Backwash Cycle Interval, Duration And Water Use For Georgia Utility

    A Leopold filter system helped save the North Columbus Resource Facility approximately 1,000,000 gallons of water per day that was previously used for backwash purposes.

  • Companhia Águas de Joinville Keeps Clean Water Flowing For 600,000 Residents In South Brazil

    Learn how OpenFlow WaterGEMS reduced water protection during severe droughts with a water contingency plan. 

  • Gulf Of Mexico's Hypoxic Zone Larger Than Ever

    Last year, the National Oceanic and Atmospheric Administration (NOAA) recorded the largest hypoxic zone in the Gulf of Mexico since monitoring began 32 years ago. Hypoxic waters, often referred to as dead zones, have dissolved oxygen concentrations of less than 2-3 ppm. They are caused by eutrophication or excess nutrients that promote algal growth in water bodies. As algae decompose, they consume oxygen creating dead zones.

  • What The Industry Is Saying About The EPA Contaminant Candidate List 5

    It is assumed that most individuals involved in the advocacy, treatment, and regulation of drinking water in the U.S. have similar opinions on the importance of delivering clean, safe drinking water. But determining how regulatory steps regarding daily practices at water treatment plants (WTPs) should evolve tends to reveal some differences in opinion. Here are some recent industry reactions to the proposed Drinking Water Contaminant Candidate List 5 (CCL 5).

DRINKING WATER APPLICATION NOTES

  • Alcoholic Beverage Fusel Alcohol Testing With Static Headspace
    9/2/2014

    A static headspace method was developed using Teledyne Tekmar automated headspace vial samplers to meet the method requirements of the Alcohol and Tobacco Tax and Trade Bureau of the US Department of the Treasury (TTB) method SSD: TM:2001 for testing fusel alcohols in alcoholic beverages.

  • Ultrapure Water For Determination of Toxic Elements In Environmental Analyses
    4/10/2018

    In this paper the importance of reagent water quality for toxic element environmental analyses is discussed, and the suitability of fresh ultrapure water produced using MilliporeSigma water purification systems for ICP-OES and ICP-MS trace element analyses in environmental laboratories is demonstrated.

  • Water Treatment In Boilers And Cooling Towers
    10/29/2021

     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%!

  • Immediate pH Correction For Fluctuating Flow
    2/19/2014

    In a number of water, wastewater and industrial process applications, pH is one of the most critical and highly sensitive analytical measurements.  Examples of critical pH applications include: Reverse Osmosis (RO) systems in which a controlled feed of caustic solution is typically added to the feed stream in order to convert a portion of dissolved carbon dioxide into bicarbonate precipitate allowing for removal by the RO membrane. By Rafik H. Bishara, Steve Jacobs, and Dan Bell

  • Determination Of EN15662:2008 - Determination Of Pesticide Residue In Food Of Plant Origin, By An Automated QuEChERS Solution
    9/24/2014

    Pesticide residue laboratories are required to undertake analyses of an ever increasing number of samples. The analyses typically involve use of multi-residue methods (both GC-MS and LC-MS) to test for over 500 pesticide residues.

  • Remote Monitoring And Maintenance Through Digitalization
    3/17/2020

    Siemens offers to our customers the ability to make both process measurements, and to remotely monitor the activity and health of instrumentation, whether you have a SCADA, PLC or DCS system, or not. By utilizing Siemens’ ability to offer unparalleled flow, level, pressure, temperature, and weight measurement we can provide a broad range of process measurements and offer unequaled monitoring of the health and performance of those products.

  • Network Monitors Water Quality In Shale Gas Drilling Region
    9/2/2011
    High-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
  • Panametrics Technology Helps Track Potable Water Leaks
    4/22/2022

    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.

  • Determination Of Pesticide Residue In Vegetables
    9/10/2014

    QuEChERS is a Quick-Easy-Cheap-Effective-Rugged-Safe extraction method that has been developed for the determination of pesticide residues in agricultural commodities.

  • VFD Energy Savings For Pumping Applications
    4/6/2017

    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.

DRINKING WATER PRODUCTS

Blue-White’s Polysulfone Flow Meters have durable meter bodies with excellent heat and chemical resistance.  Units for use in UltraPure environments are available.

Gray iron pipe preceded Ductile Iron pipe by well over 100 years. Its intended use was to convey water as well as wastewater. Continuous tests and field experience have brought the production and use of Ductile Iron pipe to maturity. It has replaced gray iron pipe in practically all applications. Ductile Iron is a high-strength, tough material used in water and sewer systems in all states within the U.S. and in many other areas of the world.

HYMAX GRIP®  joins and restrains a wide selection of pipes of different types and diameters, easily and reliably. Due to its patented design, it allows the joining of pipes of the same or different materials and diameters and preventing axial pipe movement.

The 14”– 16” Insta-Valve Plus 250 from Hydra-Stop is the next generation of permanent, insertable gate valves offering increased strength, improved performance, and simplified installation and operation.

The EX-TEND® 200 joint is designed for pipelines that are subjected to expansion and contraction forces and is self restrained at full expansion.

Coriolis mass flow meter systems, sensors, and transmitters utilize the latest technology for high performance.

LATEST INSIGHTS ON DRINKING WATER

DRINKING WATER VIDEOS

Toxins from harmful algal blooms are increasingly contaminating source waters, as well as the drinking water treatment facilities that source waters supply. EPA researchers are helping the treatment facilities find safe, cost effective ways to remove the toxins and keep your drinking water safe.

Alex and the crew travel to Saudi Arabia and talk to Noura Shehab, a Ph.D. student at King Abdullah University of Science and Technology (KAUST), about her research to use microbes to power sea water desalination.

The TROLL® 9500 Water Quality Instrument simplifies multiparameter monitoring. The TROLL 9500 is a powerful, portable unit that houses up to nine water quality sensors, internal power, and optional data logging capabilities.

Across North America, streams and rivers are becoming saltier, thanks to road deicers, fertilizers and other salty compounds that humans indirectly release into waterways. At the same time, freshwater supplies are becoming more alkaline.

Did you know satellites can measure Earth’s oceans from space? The Jason-3 satellite, set to launch in July 2015, will collect critical sea surface height data, adding to a satellite data record going back to 1992.

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:

  1. Source water for a community’s drinking water supply
  2. Drinking water treatment of source water
  3. 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.