DRINKING WATER

image AMI Solution Enhances Efficiency And Boosts Customer Engagement

Read this case study to discover how the City of Santa Barbara uses Hubbell’s comprehensive water utility solutions to enhance customer service.

DRINKING WATER CASE STUDIES AND WHITE PAPERS

  • Ultrasonic And Radar Level Technologies: Bringing Clarity To The Water And Wastewater Market

    If your head spins after reading how amazing one level measurement technology is in comparison to another, understanding the key attributes of these technologies and their applicability to specific processes may help to clear the waters.

  • Pipeline Management Through Measurement

    Pressure transients can be reduced through changes in pump operations and valve usage. Intelligent pipeline monitoring, combining pressure data with analytics, helps utilities prevent problems and educate operators and customers.

  • High-Flux Polymeric Membrane For Industrial Water Separation

    Water is essential to numerous industries such as chemical manufacturing, automotive production, oil and gas refinery and power generation, yet the increasing scarcity of this precious resource makes its recovery from these activities more critical than ever.

  • Going Deep With Surge Analysis And Bubbling Up With Community Engagement

    As a nonprofit membership-based organization, Davidson Water is entirely supported by the rates and fees paid by its member customers – no county taxes involved. Created over 50 years ago by enterprising businessmen who realized that this part of the popular Piedmont corridor of commerce and trade would not be able to host more business without reliable access to clean water, Davidson Water provides a stellar example of both water stewardship and a commitment to innovation.

  • World's Largest 1,4-Dioxane Treatment Initiative

    Groundwater on Long Island, New York, contains the contaminant 1,4-dioxane. Despite no federal regulation, local water providers and state authorities have taken action to address contamination, establishing a state-enforced maximum contaminant level.

  • Retrofitting Water Systems With The Best Meters For The Job

    Although not every water, wastewater, or industrial design engineer or operations manager is familiar with the advantages of the V-Cone differential-pressure (DP) meter design, they are certainly familiar with the problems it can solve. Here is a step-by-step description of how V-Cone meters with + 0.5 percent accuracy offer better alternatives in applications currently being failed by other metering technologies.

  • A Legacy Of Clean Water

    Helping to maintain clean water is part of the Whalen family history, a story that begins in the mid-1990s with a father’s fervent belief that his research could make a difference and his son’s intense desire to ensure it did.

  • Evaluation Of Ceralite-A As An Alternative To Anthracite Filter Media

    The Golden Heart WTP located in Fairbanks Alaska is a lime softened, ground water treatment plant with five filter basins, with a combined surface area of 1495 ft2 . Typical filter loading rates are in the 2.3 –to 3.1 gpm/ft2

  • Future-Proof Your Water Meter Technology With AMI

    Because you can’t track what you can’t measure, modern water solutions bridge the gap between the vision of secure water and the reality of existing infrastructure.

  • Monitoring Chlorine Residuals For RO Membranes - ORP Versus Chlorine Analyzers

    In processes where disinfection is required chlorine is the most common and economic disinfectant followed by sodium hypochlorite (liquid bleach). It is important to disinfect the RO feedwater to avoid fouling of the membranes which results in poor performance and frequent cleaning.

DRINKING WATER APPLICATION NOTES

DRINKING WATER PRODUCTS

The Pulsa Series hydraulic diaphragm metering pumps was the foundation upon which Pulsafeeder was built. For over 70 years Pulsa Series hydraulic pumps have been synonymous with dependability, quality and precision engineering, and are still depended upon to provide years, even decades, of year round operation. Available with a variety of diaphragm styles to deliver everything from thin fluids to lime slurries, materials of construction for contact with the most hazardous chemicals and features and options to provide safe, remote and accurate dosing, count on Pulsa Series for the most demanding applications.

Today, pressure measurement technology is often used for measuring liquids, pastes and gases. With a wide range of sensor technology Endress+Hauser offer instruments with perfect fit for any kind of application.

Many submerged sensor applications require additional weight to prevent incorrect datum reference due to “cable snake.”

Our SmartPoint® 510M non-pit set module is a radio transceiver that gives you RF inbound and outbound access to water measurements and ancillary device diagnostics. It’s designed for non-submersible/non-pit (surface-mount) installations. With two-way communication ability, it serves as a walk-by or drive-by endpoint, a fixed-base endpoint or any combination of those. This versatility gives you highly flexible data collection options and simplifies both current operations and network evolution.

The Ultrameter II is a prime example of how high-tech engineering can greatly simplify and streamline a task. Whether in the lab, industrial plant, or in a remote field location, there are only a few simple steps to take a reading. 

The Aztec 600 Low Range Manganese Analyzer AW634 offers reliable and accurate on-line analysis of manganese up to 0.10 ppm Mn.

LATEST INSIGHTS ON DRINKING WATER

DRINKING WATER VIDEOS

Dr. Jamie Dewitt explains her research in Phamacology and Toxicology and why water pollution might pose a problem no matter where you are.

Runoff from farmlands can carry nutrients, insecticides and sediment that impact source water for downstream communities.

On Wednesday, November 19, 2014, at 10:15 a.m. in 2322 Rayburn House Office Building, the Subcommittee on Environment and the Economy will hold a hearing entitled “Cyanotoxins in Drinking Water."

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.

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.

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.