DRINKING WATER

Water Algae Cells-GettyImages-1328660998 Using Biological Competition To Suppress Algae Growth

Effective algae control shifts the focus from removal to nutrient management. By leveraging bioaugmentation to outcompete algae for nitrogen and phosphorus, facilities can stabilize pH levels and dissolved oxygen, ensuring long-term pond clarity and consistent wastewater treatment performance.

DRINKING WATER CASE STUDIES AND WHITE PAPERS

  • Jobsite Water Compliance

    Understanding water compliance, as used on a construction job site, is critical for keeping projects on time and budget. Expected or unexpected water, and contaminants in that water, can potentially cause challenges, delays, and a hit to the bottom line.

  • Hot Springs Combats Aging Infrastructure Challenges With Xylem Digital Solutions

    The City of Hot Springs, Arkansas knows the challenges of dealing with aging infrastructure well. The city’s 143-year-old system covers 923 miles of water mains in rocky terrain, making it difficult to detect leaks. That is why the utility’s water department decided to act. 

  • The Chemistry Of A Bloom: What Water Tests Reveal About Toxic Algae

    Understanding the chemistry behind algal blooms is key to early detection, effective monitoring, and mitigating their impacts. Fortunately, water testing technologies are revealing powerful insights into what’s really happening below the surface. 

  • Troubleshooting A Sudden Fecal Coliform Non-Compliance Event

    A municipal wastewater treatment plant investigated a sudden increase in fecal coliform exceedance events.

  • EPA Researchers Partner With The Minnesota Department of Health To Screen For Chemicals Of Health Concern In Water

    There are many different chemicals that are released into our environment, and the ability to characterize human exposure and risk of every one of those chemicals is limited. Because information about these chemicals and their sources is limited, it’s difficult to know which chemicals are of highest concern, and regulatory agencies struggle to determine where they should focus efforts.

  • 10 Essentials To Specify A Thermal Mass Gas Flow Meter

    Whether you are working on a plant upgrade, a process improvement or an expansion project, doing your homework on the application and installation will save you time and expense, and ensure first-time right success. To specify a thermal mass flow meter correctly, there are 10 key questions you will want to understand, consider and then be able to answer.

  • The Reasons Behind The Wide Array Of Liner And Electrode Choices In Magnetic Flow Meters

    Electromagnetic flow meters offer significant benefits in water, wastewater, and industrial applications because they can be reliably used to measure liquid with many different characteristics. Since these devices contain no moving parts, making them virtually maintenance-free, they are becoming the workhorse for a growing number of utilities and industrial operations. Despite the advantages, however, electromagnetic flow meters are often avoided based on the misconception that there are limitations on what they can measure.

  • Dow Achieves Maximum Efficiency With Glass-Lined Storage Tank

    Every morning when you pour a cup of coffee or tear open a package of frozen waffles, the science of Dow Chemical is there to help make your breakfast convenient and fresh. Dow makes high-performance materials that go into food packaging, personal care products, medications, and clothing — to name a few.

  • Ozone Disinfection System Provides Second Stage Treatment For Water Treatment Plant

    Tampa Bay Water’s state-of-the-art surface water treatment plant has provided high-quality drinking water to the Tampa Bay region.

  • 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.

DRINKING WATER APPLICATION NOTES

  • Simplify And Optimize Your Process With Level And Pump Control
    3/1/2022

    Level controllers have evolved to meet today’s environmental challenges and industry demands. Learn how they support improved process management and, ultimately, a better bottom line.

  • How Activated Carbon Works To Purify Air And Water
    10/31/2019

    The first step is to define the performance limiting factors in the application. For this application, most of the adsorber is used for MTBE adsorption in the ppb concentration range. Adsorption of BTEX, TBA, or humic acids or other total organic carbon (TOC) components are removed by the front end of the column.

  • Pikeville, Kentucky Medical Center Leak Found Despite Ambient Noise
    6/23/2021

    Leaks found in 60 psi high density PE pipe by FELL in less than three hours. Acoustic and CCTV failed to find any leaks after more than a year of investigation. Read the full case study to learn more. 

  • Determination Of Polar Pesticide Residues In Food Of Plant Origin, By And Automate QuPPe Solution
    9/29/2014

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

  • Irrigation Technology In Agriculture: How New Technologies Overcome Challenges
    1/29/2019

    As the world’s population continues to increase at a fast pace, more food and water will be needed to sustain humanity. In the past 50 years, we have tripled our need for water and food, and there are no signs of this trend slowing down. As a result of these conditions, smart, innovative agricultural practices are needed now more than ever. Technology can, and already does, aid agriculture in innumerable ways. One prominent part of agriculture that can use technological innovation to increase efficiency and effectiveness is irrigation.

  • What Are You Doing To My Pipe: Can PVC Pipe Be Loaded?
    4/13/2021

    The argument has been used that PVC pipe is delicate and can’t be subjected to any kind of loading. In EBAA's years of testing we have found that is not the case at all. PVC can take an extreme amount of strain.

  • 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%!

  • FLEX-TEND® Flexible Expansion Joints, Features And Specifications
    12/3/2020

    FLEX-TEND® flexible expansion joints are designed to protect structures and pipelines from differential movement whether this movement is earthquake induced or the gradual motion of soil subsidence. This bulletin offers a concise listing and discussion of the important features and materials of the double and single ball assemblies.

  • SensyMaster Thermal Mass Flowmeter
    8/3/2021

    SensyMaster helps to improve the operating costs of the most cost intensive process in sewage plants: Aeration. High-measuring performance and state of the art technology helps customers increase plant efficiency.

  • Water Determination In Liquefied Petroleum Gas Using GC BID And Ionic Liquid Column Watercol™
    6/28/2018

    Water in petrochemical feedstocks can cause problems for processors. Freezing of pipe lines and valves and poisoning of expensive catalysts are just a few examples.

DRINKING WATER PRODUCTS

Say hello to the Myron L Company ULTRAPENx2™ PTBT6 Nitrate & Temp pen. It features an array of high-performance features.

The AquaDiamond® filter, a new horizontal configuration for the Cloth Media Filter, has been produced. It utilizes PA-13 pile cloth as its filter media.

Utilizing the secure, existing cellular network infrastructure, the ORION® Cellular LTE endpoint is designed for maximum flexibility to meet a variety of your AMR and AMI water meter reading system and application needs.

Understand your pipe condition without impacting service using ePulse Optimize and ePulse Discovery.

The Series 71P11A Gas Pressure Reducing and Shutoff Valve is a diaphragm-type gas pressure regulating valve designed for use on chlorine, sulfur dioxide and ammonia gas service. The valve is used in a gas dispensing system to prevent liquefaction of the gas by providing a controlled pressure drop in the piping system. Downstream pressure is regulated to a reduced value by adjustment of the control setting. If the downstream pressure exceeds the pressure at which the valve is set, gas flow will be shut off.

The modular design of the ProcessMaster FEP500 enhanced version offers the industry's widest range of liners electrodes and sizes to meet the needs of even the most demanding process applications in sectors as diverse as chemical, power, oil & gas, pulp & paper and metals & mining.

LATEST INSIGHTS ON DRINKING WATER

DRINKING WATER VIDEOS

The Western Governors' Drought Forum webinar “Once Marginal, Now Crucial: The Growing Demand for Re-used, Produced, and Brackish Water” explores the technological and regulatory obstacles to utilizing re-used, produced, and brackish water.

In this episode of The Water Online Show: On Location, our guest is Mike Blackburn from Hach. Mike dives into the benefits of panel-mounted solutions for water quality monitoring.

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.

How much water does it take to make a hamburger? How about to manufacture a car? Having experienced growing up with limited resources living in a refugee camp in India, Anil Ahuja is leading a movement to design sustainable cities and systems that protect the earth and the people who live on it.

Water Research Foundation at the Silicon Valley Advanced Water Purification Center talking with Jim Fiedler and Andrew Salveson about upcoming WRF Direct Potable Reuse research projects.

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.