DRINKING WATER

Evaluating Total Cost Of Ownership Models When Choosing Advanced Metering And Communications Networks
Evaluating Total Cost Of Ownership Models When Choosing Advanced Metering And Communications Networks

This white paper describes how utilities can apply TCO evaluation, which takes into account on-going operations costs, replacement and lifecycle costs and personnel, as well as initial capital investment, to get a more complete picture of what systems will actually cost over time. These TCO calculations prove that point-to-multipoint fixed-network solutions can provide the best TCO of any competitive system, including manual, drive-by or mesh fixed-network solutions.

DRINKING WATER CASE STUDIES AND WHITE PAPERS

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DRINKING WATER APPLICATION NOTES

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DRINKING WATER PRODUCTS

Aquametrix 2250 Multi-Parameter Controller Aquametrix 2250 Multi-Parameter Controller

Designed to be the most flex­ible, easy to use, and easy to see multi-parameter controller on the market, the 2250 and 2250 TX excels in measuring Conductivity, pH, ORP or Flow.

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.

ShaleFlow™: A Mobile Solution For Produced Water Reuse ShaleFlow™: A Mobile Solution For Produced Water Reuse

Veolia has developed ShaleFlow™, a cost-effective mobile solution for reuse of flowback and produced water from hydraulic fracturing operations. This compact, mobile system utilizes proven technologies designed to enable reuse with the flexibility to be moved as the field is developed.

Unreinforced PPS For Fitting Applications Unreinforced PPS For Fitting Applications

Following the successful introduction of glass fiber-reinforced DIC.PPS Z-230 Black and impact modified GF30 for drinking water applications, the unreinforced and impact modified DIC.PPS Z-200-XY series has been commercially launched for fitting applications. As required by European water regulations, ISO 9080 testing of DIC.PPS Z-200-E5 Gray has been performed at an officially accredited laboratory. This grade exhibits impressive values for maximum hoop stress at various temperatures and is an ideal candidate for the replacement of metals and more costly plastic materials such as PPSU and PVDF utilized for fitting applications.

Vortisand For Membrane Pretreament: Not Just Protection! Vortisand For Membrane Pretreament: Not Just Protection!

Neptune Benson’s Vortisand is a high performance automatic backwashable cross-flow microsand filtration system that filters down to the submicron level; 10 to 50 times finer than other media filters. Vortisand combines a cross-flow condition and sand filtration in the same vessel to achieve high performance filtration results both in pre and post membrane applications.

E33 Adsorption Systems E33 Adsorption Systems

In the adsorption process, contaminants break their bond with the water molecules and chemically adhere to a filter media. This is typically accomplished by directing the water flow through pressure vessels containing the filter media at a rate that allows enough contact time for adsorption to occur. AdEdge Water Technologies’ Bayoxide E33 adsorption media is the industry standard for arsenic removal. This granular ferric oxide media reduces up to 99% total arsenic, including both Arsenic (III) and Arsenic (V).

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LATEST INSIGHTS ON DRINKING WATER

  • New Study: Solar, Energy Efficiency Can Help The Texas National Guard Save Money And Water
    New Study: Solar, Energy Efficiency Can Help The Texas National Guard Save Money And Water

    This year has seen historic flooding across the South. In addition to the devastating rains that recently hit Louisiana, severe floods pummeled Texas earlier this year. In both cases, the states’ National Guards were first responders, rescuing families, delivering meals and supplies to survivors, and providing local agencies with high-water trucks, boats, and helicopters.

  • How To Comply With Drinking Water Turbidity Requirements Using 360° x 90° Detection Technology
    How To Comply With Drinking Water Turbidity Requirements Using 360° x 90° Detection Technology

    Drinking water systems must meet a myriad of regulatory requirements to ensure the public’s health and safety. Excess turbidity can be a first indication of degrading water quality, so accurate and timely turbidity measurement is critical. Hach has been a leader in providing analytical instruments to the water industry for many years. Water Online spoke with Hach about turbidity measurements and how to ensure test results reflect actual water quality conditions.

  • Water For Life
    Water For Life

    Look back with me a full decade (and a year) to 2005.

  • Using Smart Irrigation To Conserve Water
    Using Smart Irrigation To Conserve Water

    Using efficient irrigation for outdoor lawns is an effective way to save water and to delay the need for water utilities to develop new water sources. In 2005, Orange County Utilities (FL) began an effort to plan for alternate water sources in Orange County because its primary water source, the Floridan Aquifer, was predicted to meet its capacity to provide water.

  • Seeking Alternatives For Potable Reuse
    Seeking Alternatives For Potable Reuse

    A recent project by the Water Environment & Reuse Foundation in Tucson, AZ, sought to vet more affordable and environmentally-friendly technologies to achieve potable reuse, with promising results.

  • Does Chlorine Get A Bad Rap?
    Does Chlorine Get A Bad Rap?

    When it comes to disinfection at treatment plants, chlorine has quite the reputation. To some, it’s known as a reliable and trusted solution. To many others, especially among the public at large, it’s looked at with skepticism and concern – but that may be simply a matter of not knowing the facts. Either way, it’s one of the ubiquitous aspects of water and wastewater disinfection… and for good reason.

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DRINKING WATER VIDEOS

Lead Poisioning Disaster: How To Fix It

Lead poisoning water service lines are turning up around the globe at an alarming rate leaving millions angry. ePIPE's innovative technology creates a new pipe barrier inside the service lines eliminating water contact with the lead service lines.

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.

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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.