DRINKING WATER

Following Ultrasonic Success, Master Meter Introduces Sonata
Following Ultrasonic Success, Master Meter Introduces Sonata

A common drive among inventors is the hope of building “a better mouse trap.” There may be products that satisfy their users every day, but are crying out for improvement. One company has found that opportunity in water meters, taking a technology that has worked in the industrial space and offering it for the first time for residential applications.

DRINKING WATER CASE STUDIES AND WHITE PAPERS

  • Ozone Vent Gas For Aeration At Wastewater Plant Expansion In China
    Ozone Vent Gas For Aeration At Wastewater Plant Expansion In China

    The Jimo, China, municipal wastewater plant was originally designed to treat a combination of municipal and textile wastewater (120,000 m3/d) with Class IB effluent limits for BOD, COD, ESS, TN, NH3-N and TP.

  • Carbon Dioxide For pH Control Of Landfill Leachate
    Carbon Dioxide For pH Control Of Landfill Leachate

    A landfill operator’s leachate treatment plant in Missouri required pH reduction following lime-softening and prior to the biological wastewater treatment process. Carbon dioxide (CO2) was chosen as a substitute for sulfuric acid due to improved process control and a reduced tendency to form scale.

  • In-Situ Oxygenation System Enables Increase In Capacity For Municipal Wastewater Treatment Facility
    In-Situ Oxygenation System Enables Increase In Capacity For Municipal Wastewater Treatment Facility

    To increase capacity within the existing footprint of a wastewater treatment facility in Michigan, two existing tanks were converted to aeration tanks with pure-oxygen aeration provided by Praxair’s In-Situ Oxygenation (I-SOTM) System.

  • Following Ultrasonic Success, Master Meter Introduces Sonata
    Following Ultrasonic Success, Master Meter Introduces Sonata

    A common drive among inventors is the hope of building “a better mouse trap.” There may be products that satisfy their users every day, but are crying out for improvement. One company has found that opportunity in water meters, taking a technology that has worked in the industrial space and offering it for the first time for residential applications.

  • Water Surge Prevention: Analysis Of Solutions And Alternatives
    Water Surge Prevention: Analysis Of Solutions And Alternatives

    Water Surge could cause damage in a water conveyance system, from leaking pipes to serious breakdowns and accidents the consequences of which could lead to heavy financial costs and even loss of life.  There are various solutions that are able to prevent or reduce the damage.  It is important to know the differences between the solutions, and the advantages and disadvantages of each technology, before recommending the most suitable solution for the system.

  • Cyanide Analysis Of Wastewater Samples From FCC And Hydrocracking Operations
    Cyanide Analysis Of Wastewater Samples From FCC And Hydrocracking Operations

    Fluid catalytic cracking (FCC) is a major unit operation in refineries around the world. FCC is used to convert lowvalue, high molecular weight feedstocks such as shale oil, tar sands oil, and coker gas oils into lighter, high-value products by “cracking” C-C bonds.

  • Sodium Hypochlorite: The Unsung Hero In Disinfection
    Sodium Hypochlorite: The Unsung Hero In Disinfection

    For the fortunate few in this world, many of us enjoy fresh cold water from our taps, crisp white linens in hotel rooms, and refreshing and safe water in swimming pools. It all seems very easy and straight forward with all the new technologies available in the industry to ensure safe and clean drinking water. A reliable and effective technology is always needed to ensure peace-of-mind for all water treatment processes. In many cases, it is the centuries old Sodium Hypochlorite (NaClO) chemical, or as known by every household – Bleach. By Angela Yeung, District Sales Manager, Grundfos

  • Gore Hill Water Treatment Plant’s Backwash Recycle System Conserves More Than 1.5 Million Gallons Of Water Annually

    The emphasis on sustainability in recent years has placed an increased demand on environmentally friendly solutions that adhere to strict regulatory standards. The H2ZeroTM backwash/recycle system from AdEdge Water Technologies conserves water by storing and treating contaminated backwash water from filtration and treatment systems.

  • Direct Filtration Of Spring Water

    The Franklin Water Treatment Plant, near the Utah/Idaho state border, serves approximately 600 residents. Traditionally, water was drawn from springs and chlorinated.

  • Wicked Awesome Remediation
    Wicked Awesome Remediation

    July 13, 2013 in Boston was a day more than 50 years in the making, as the long-suffering Charles River was opened for recreational swimming. Infamous for its heavy pollution, the river had become the butt of many a joke, and deservedly so. It sounds like jest to say that anyone who fell in the river was advised to go to the hospital for a tetanus shot, but that was exactly the case. After receiving a “D” grade for water quality by the U.S. EPA in 1995, the Charles began a steady road to recovery that resulted in a “B+” in 2011. And this summer, after half a century, it was once again open to swimmers — and swim they did.

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DRINKING WATER APPLICATION NOTES

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DRINKING WATER PRODUCTS

SORB 07™ Nitrate Removal System SORB 07™ Nitrate Removal System

With more than 25 years of ion exchange treatment process experience, De Nora Water Technologies has designed the SORB 07™ nitrate removal system to treat nitrate (NO3) contamination in ground water supplies.

SORB 09™ Fluoride Removal System SORB 09™ Fluoride Removal System

The SORB 09 system treats a wide range of water qualities at capacities ranging from 50 to 3,000 gpm. The SORB 09 system features a small footprint and enhanced operation as compared to conventional activated alumina adsorption systems.

Magnetic Flow Meters Magnetic Flow Meters

Interchangeable sensors and transmitters provide ideal flexibility for flow measurement.

Service, Training and Rentals Service, Training and Rentals

Siemens Process Instrumentation Service group provides a highly-skilled staff of competent, trained engineers and specialists to provide service and support.

Leopold® Clari-DAF® PW System Leopold® Clari-DAF® PW System
The Leopold® Clari-DAF® PW (Potable Water) system is a clarification technology for the pretreatment of rapid gravity filter feedwater.
Recordall® Compound Series Meters Recordall® Compound Series Meters

Recordall Compound Series Meters from Badger Meter combine two metering technologies in one innovative package. A positive displacement chamber measures low flow, while a turbine chamber records high flow. These meters are an ideal choice for facilities that experience rapid and wide fluctuations in water demand, such as hospitals, universities, residential complexes and manufacturing or processing facilities.

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LATEST INSIGHTS ON DRINKING WATER

  • Celebrating 10 Years Of WaterSense
    Celebrating 10 Years Of WaterSense

    Did you know that two-thirds of the continental U.S. has experienced drought in the last few years? It has left many utilities grappling with water scarcity and the costs of finding new water resources and treatment.

  • Piping Up About Chemical Resistance
    Piping Up About Chemical Resistance

    The lead contamination crisis in Flint, MI, brought more attention to the country’s piping systems than we’ve seen in a long time. Average Americans were questioning what exactly constitutes the water infrastructure below them and what that might mean for the water they enjoy in their homes.

  • How To Remove PFOA And PFOS
    How To Remove PFOA And PFOS

    The Water Research Foundation has released the results of a study testing the most effective method for treating PFOA and PFOS in drinking water.

  • Texas’ Evolving Energy Reality: Clean Energy Uses Less Water
    Texas’ Evolving Energy Reality: Clean Energy Uses Less Water

    It’s been an interesting time for water in Texas. Beyond the incredibly wet and cool spring we’ve been having, Memorial Day saw the second year in a row of record-breaking floods.

  • Take 5: Movies About Water
    Take 5: Movies About Water

    Last month, I attended a municipal open house that was held just a few miles from the Water Online offices. The scene, like that of a movie, triggered thoughts of Hollywood's take on water issues. Just how many movies have featured water as the central theme? I came up with five.

  • Choosing A Corrosion Control Treatment Strategy
    Choosing A Corrosion Control Treatment Strategy

    Here in the post-Flint era of municipal water operations, and for the foreseeable future, the loudest mandate for utilities will be to "get the lead out" of our distribution systems. Until such time that all lead lines are replaced, control strategies will need to be employed.

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DRINKING WATER VIDEOS

Expanded Version-Jason 3-Continuing Decades Of Ocean Surface Measurements

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.

People Drink Sewage Water For The First Time

Rather drink sewage water than LA tap water any day.

Kupferle Foundry - #9800i-GENESIS Turbine Powered Automatic Flushing Device With Chlorine Analyzer

The Eclipse i-Series model #9800i-GENESIS is the newest Intelligent Flushing & Monitoring Station Kupferle offers to maintain safe residual levels and remove DBPs from consumers' water. This permanently installed station incorporates a built-in chlorine analyzer to measure and record disinfectant residual levels based on a programmed sampling schedule.

NASA: Megadroughts Projected For American West NASA: Megadroughts Projected For American West

NASA scientists used tree rings to understand past droughts and climate models incorporating soil moisture data to estimate future drought risk in the 21st century.

Putting Drinking Water To The Test Putting Drinking Water To The Test

Appearing on The Weather Channel's "Wake Up With Al" morning show, water expert Dan Theobald puts drinking water to the test by measuring total dissolved solids (TDS) in tap water samples from Brooklyn, Manhattan, and New Jersey, as well as bottled water samples.

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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.