DRINKING WATER

GettyImages-621393082 The Power Of Ductile Iron Pipe: A Solution For Every Application

Ductile iron pipe is a versatile, reliable solution that resists UV degradation, freezing, and physical stress. Its unmatched durability ensures long-term performance in any piping application.

DRINKING WATER CASE STUDIES AND WHITE PAPERS

  • Hydroinformatics 101: Intro To Water Optimization And Efficiency

    Hydroinformatics offers a fresh perspective that is enabling communities around the world to tackle age-old problems in new ways and with a bigger toolset.

  • Degas Separator Selected For Wichita Aquifer Storage And Recovery Project

    In the 1990s, the City of Wichita, KS, developed a water supply plan that included creating a sustainable water supply through the year 2050. The key component of the plan is recharging the large aquifer that lies under the region with 100 MGD of water from the Little Arkansas River.

  • New 23-Mile San Antonio Water Pipeline Wins Industry Award

    A water pipeline extension recently completed for the San Antonio Water System (SAWS) is the largest high-density polyethylene (HDPE) pipe project of its type ever done in North America according to the Plastics Pipe Institute, Inc. (PPI).  The $149 million, Regional Carrizo Project undertaken to provide water to 60,000 homes by late 2013, was named Project of the Year for PPI's Municipal and Industrial Division.  PPI is the major trade association representing all segments of the plastic pipe industry.

  • Close Data And Control Gaps With Remote Monitoring

    For as many water/wastewater utilities that use SCADA systems inside their treatment facilities, there are many where that automated data collection and control all but ends at the property line. In reality, a significant percentage of customer service and performance efficiency opportunities exist ‘beyond the fence.’ Here is how utilities can use remote monitoring to leverage those opportunities for success.

  • Partners Can Help With Funding Requirements To Fix Aging Infrastructure

    Read more about why prioritizing budgets for addressing aging infrastructure is critical. 

  • Upcoming Standards And Compliance Regarding Lead-Free Requirements

    Badger Meter has and will continue to manufacture and provide products that meet the requirements of current and future lead-free standards. This white paper discusses these changing industry needs both as they relate to Badger Meter products and to water utilities in general.

  • Sensitive Determination Of Iron In Drinking Water, Mineral Water, Groundwater, And Spring Water Using Rapid Photometric Tests

    The quality of drinking water is regulated by a variety of guidelines, such as the EU Council Directive 98/831,2 and WHO guideline. The key principles used to define these limits consider both health hazards and sensory and technical reasons. Iron, for example, does not exhibit a risk for health in concentrations usually found in drinking water.

  • Dangerous Waters In A Changing World

    Americans and Canadians got a peek into the future when the City of Toledo shut its drinking water taps in 2014, issuing a do-not-drink order on the municipal water supplies serving 500,000 people. Levels of microcystin, a potent liver toxin produced by blue-green algae, were more than double the World Health Organization's safe limit. More than 700 square miles of the Lake Erie surface was covered by a harmful algal bloom (HAB), and drinking water plants couldn't remove the algal cells and the toxins they produced.

  • The Product Of Choice For Birmingham Water Works' 4000 Miles Of Pipe

    The Birmingham Water Works Board is the largest water utility in the state of Alabama, providing water to approximately 600,000 people across the Greater Birmingham area. Its service area is about 759 square miles and contains about 4,000 miles of pipe.

  • EPA Creates Database To Find Thermal Treatment Processes For Remediating PFAS

    Per- and polyfluoroalkyl substances (PFAS) are a group of synthetic chemicals that have been in use since the 1940s. PFAS are found in a wide array of consumer and industrial products. Due to their widespread use and persistence in the environment, most people in the United States have been exposed to PFAS. There is evidence that continued exposure above specific levels to certain PFAS may lead to adverse health effects.

DRINKING WATER APPLICATION NOTES

  • How To Install A Submersible Pump In Discharge Tubes
    11/28/2012

    In the fields of water and waste water technology, submersible pumps represent a viable economic and technical alternative to conventional, dry-installed pumps. In particular, they offer a number of handling advantages during maintenance and installation work.

  • Analyzing Total Organic Carbon In Sea Water
    4/2/2015

    The analysis of Total Organic Carbon (TOC) in seawater can be both challenging and expensive. The concentration of organic carbon in seawater is of considerable interest. The effect this matrix can have on TOC analyzers can lead to rapid consumable turnover, costly maintenance and repairs.

  • 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%!

  • How To Read An Encoder
    9/13/2013

    The HR-E LCD encoder has a 9-digit Liquid Crystal Display (LCD) to show consumption, flow and alarm information. The display automatically toggles between 9-digit and 6-digit consumption, rate of flow and meter model.

  • Improved Determination Of Volatile Organic Compounds In Water By SPME And GC/MS
    6/21/2018

    The analysis of water for volatile organic compounds is important due to their toxicity. The current methods for this determination lack of sensitivity, selectivity or capability for automation. This paper presents the new ISO 17943 Standard using Solid Phase Microextraction (SPME) and GC/MS. The sample preparation by SPME enables limits of detection and easy automation of the whole method. GC/MS provides the required sensitivity and selectivity. This ISO Standard was validated by an interlaboratory trial, which results confirm the outstanding performance for this method.

  • Flexible Expansion Joints Provide Protection For Pipelines Subject To Subtle Or Sudden Movement
    12/7/2020

    Flex-Tend flexible expansion joints have a proven record of providing protection for pipelines subject to subtle or sudden movement. As with all products used in the water and wastewater industry, protection is optimized with the selection of the proper assembly incorporated into a sound design. This paper is intended to provide assistance in both of these areas.

  • LC-MS Analysis Of PFAS Compounds In EPA Methods 537.1, 533 And 8327
    11/4/2021

    The Ascentis Express PFAS HPLC column is designed for the separation of novel and legacy PFAS as per recent EPA methods. A specific PFAS delay column prevents background PFAS contamination from interfering with sample results in quantitative LC-MS methods.

  • Determination Of Pesticide Residues In Honey, By An Automated QuEChERS Solution
    9/17/2014

    The QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample extraction method was developed for the determination of pesticide residues in agricultural commodities.

  • Ion Exchange Resins And Activated Carbons For Better-Tasting Water
    12/18/2013

    For many, access to good-tasting tap water is limited, and buying bottled water can be expensive. Simple pour-through jug filters offer a low-cost and effective alternative. Activated carbons, in conjunction with ion exchange products, produce drinking water that is absent of all industrial pesticides and contaminants.

  • A New Way Of Designing With Reverse Osmosis Membranes
    7/23/2015

    Process design in water treatment is historically confined to proprietary or user-defined spreadsheets on a unit operation basis, with users manually adding results from each unit process upstream into the next operation.

DRINKING WATER PRODUCTS

The Swan AMI DIST series offers three options for measuring chlorine, pH, conductivity and Turbidity on one easy to install, easy to maintain panel.

Proprietary Composite Spiral Element. Available in Fiberglass and Netting Wrap configurations. Anti-Telescoping Device (ATD) both ends. Brine seal (one end) - Fiberglass Wrap only.

The Automatic Switchover system Series 1041 provides safe, reliable switching between two gas (pressure or vacuum) or two liquid (pressure or level) sources assuring an uninterrupted supply of chemical to the application. Automation of all functions (switchover, system initialization, configuration, lamp test, and safety functions) is done with an internal programmable logic controller for operational flexibility, enhanced reliability, and ease of use. If needed, local manual override is conveniently available for operator control to maintain continuous operation.

The ORION® Cellular LTE-M endpoint is an evolution in AMI technology, strengthened by the Network as a Service (NaaS) approach. The innovative endpoint utilizes existing IoT (Internet of Things) cellular infrastructure to efficiently and securely accomplish two-way communication of meter reading data via the LTE-M cellular network.

Ozone treatment for water and wastewater has been utilized successfully for several decades and continues to be a viable disinfection solution for both municipal and industrial plants, worldwide.

Recordall® Fire Hydrant Meters are designed for use in measuring potable cold water from a fire hydrant or other non-permanent installation where flow is in one direction.

LATEST INSIGHTS ON DRINKING WATER

DRINKING WATER VIDEOS

GE partnered with the Wharton School's Initiative for Global Environmental Leadership (IGEL) for an industry leaders' discussion about the energy/water nexus in unconventional oil & gas production.

The recoating of a potable water tank in Lancaster, PA, included an already tight timeframe and several challenges that cause delays.

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.

The International Junior Science Olympiad 2017 (IJSO) was held in the Netherlands in December 2017. Xylem Inc. was official sponsor of the event, in which students aged 15 from 50 countries compete with one another on the topic Water & Sustainability.

The Orange County Water District (OCWD) has long been an innovative leader in indirect potable reuse. An integral component of its Groundwater Replenishment System (GWRS) – a 100 million gallon per day advanced water purification facility – is reverse osmosis membrane technology.

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.