DRINKING WATER TREATMENT

Austin Traces Root Of Drinking Water Odor To Zebra Mussel Infestation
Austin Traces Root Of Drinking Water Odor To Zebra Mussel Infestation

An unusual culprit has been identified as the source behind rotten smelling water in Austin, Texas. Though the source of the smell was surprising, at least it wasn’t too difficult to deal with.

DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • The Top 4 Oxidation Methods For Iron & Manganese
    The Top 4 Oxidation Methods For Iron & Manganese

    Iron is one of the earth's most plentiful resources, making up at least five percent of the earth's crust. In well water iron is usually found as ferrous iron, which is in a dissolved state and may appear clear when first drawn from the tap.

  • Advanced Diagnostics of Thermal Mass Flow Meters
    Advanced Diagnostics of Thermal Mass Flow Meters

    Many thermal mass flow meters are of the insertion type. As a starting point, proper insertion depth and straight run per the manufacturer’s recommendations should be adhered to.

  • 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.

  • Can An Anti-Microbial Agent Extend The Life Of Filter Media?
    Can An Anti-Microbial Agent Extend The Life Of Filter Media?

    Harmsco Filtration Products conducted a test to evaluate the performance of the Anti-microbial filter media verses Standard filter media. Two cartridges were compared, both were manufactured with 4 oz filter media, one of the cartridge’s media contained Silver Zeolite fibers which inhibit the growth of biologicals in and on the filter cartridge.

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

  • 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.

  • The 5 Most Common Questions That We Are Asked
    The 5 Most Common Questions That We Are Asked

    The versatility of 2nd Generation ATP monitoring technology enables it to be applied to a wide range of situations involving many sample types in many industries, from anaerobic sludge to paint products to ultra-purified water.

  • ProjectWise’s Geospatial Management Extends Searchability Of Philadelphia Water Documents
    ProjectWise’s Geospatial Management Extends Searchability Of Philadelphia Water Documents

    The Philadelphia Water Department (PWD) is a municipal utility providing a population of nearly 1.7 million people in three eastern Pennsylvania counties with integrated water, wastewater, and stormwater services. The utility is responsible for planning, design, construction, operation, and maintenance of the necessary infrastructure.

  • Cryptosporidium Removal From Commercial Swimming Pools
    Cryptosporidium Removal From Commercial Swimming Pools

    A year long pilot study was performed at an indoor commercial pool in Geauga County Ohio. The testing included an extensive evaluation of common and widely available granular filtration medias and compared the performance results in real time. The intent of the study was firstly to compare the real time turbidity removal capabilities of the various medias and secondly assess the removal ability of cryptosporidium sized particulate (2-5 micron). This assessment also included a polystyrene microsphere challenge on selected well-seasoned medias to compare the ability of the medias to remove crypto sized particles.

  • Town Of Kittery, Maine Relies On Lime Feeders For pH Control For More Than 25 years
    Town Of Kittery, Maine Relies On Lime Feeders For pH Control For More Than 25 years

    The Francis L. Hatch water filtration plant is in the coastal town in York county Maine and has an average capacity of 2.6 MGD. This is a surface water plant that utilizes hydrated or “slaked” lime (calcium hydroxide) to maintain the pH level around 7.0. For over 25 years, the district has used two of the UGSI Chemical Feed model 32‐055 Feeders to mix dry hydrated lime with water to create a lime slurry solution that can then be added to the finished water treatment.

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DRINKING WATER TREATMENT APPLICATION NOTES

  • New Water Turbidity Measurement Technology — The US Experience
    New Water Turbidity Measurement Technology — The US Experience

    The amount of insoluble matter present in drinking water is an essential quality indicator. Silt, sand, bacteria, spores, and chemical precipitates all contribute to the cloudiness or turbidity of water. Drinking water (DW) which is highly turbid can be unpalatable and unsafe. Consumption of even low concentrations of certain bacteria and other microorganisms can cause serious health effects. Consequently, an accurate and sensitive measurement of turbidity is vital for ensuring that drinking water is free of these contaminants.

  • Innovative Solutions To Drinking Water Decontamination In Small And Medium Treatment Plants
    Innovative Solutions To Drinking Water Decontamination In Small And Medium Treatment Plants

    Air stripping technology effectively removes VOCs, THMs, and CO2 for improved adherence to water quality regulations.

  • The Basics: Monitoring Deionized Water
    The Basics: Monitoring Deionized Water

    Years ago, high purity water was used only in limited applications. Today, deionized (Dl) water has become an essential ingredient in hundreds of applications including: medical, laboratory, pharmaceutical, cosmetics, electronics manufacturing, food processing, plating, countless industrial processes, and even the final rinse at the local car wash.

  • Validation Of Environmental Water Methods On One System
    Validation Of Environmental Water Methods On One System

    Water quality laboratories across the nation are faced with both a rising level of water quality awareness amongst the general public, as well as rising costs in water quality monitoring. As a result, laboratories are looking for more efficient ways to provide higher quality monitoring.

  • Application Note: YSI 600 Optical Monitoring System Used To Protect Lake Oconee, Georgia Water Quality Northern Georgia is experiencing unprecedented development; consequently, water quality in many of its watersheds is in jeopardy of severe degradation. The State of Georgia, Environmental Protection Division (EPD) has implemented an NPDES monitoring and enforcement program designed to prevent construction activities from impacting water quality
  • Application Note: Ozone Measurement In Potable Water
    Application Note: Ozone Measurement In Potable Water

    Ozone is a powerful oxidizing agent that can be used to destroy the organic compounds that affect the taste and odor of potable water. Environmental concerns have led to increased use of ozone because, unlike chlorine, it does not form hazardous by-products.

  • Application Note: Continuous Monitoring Of Drinking Water Provides Assurance Of Safety
    Application Note: Continuous Monitoring Of Drinking Water Provides Assurance Of Safety A water utility in Ohio wanted to learn more about the variability of water quality parameters such as pH, ORP, turbidity, and chlorine. Previously, most of these parameters had been measured by spot sampling protocols with only a few measurements during a daily period. In order to more accurately assess the water variability, the utility used a YSI 6920DW Drinking Water Multiprobe
  • Application Note: Using Real-Time Telemetry For Ecological Monitoring Of Coastal Wetlands The Grand Bay National Estuarine Research Reserve (NERR)in Mississippi is one of 27 protected estuarine reserves across the United States. By YSI
  • Activated Carbon And Adsorption Of Trichloroethylene (TCE) And Tetrachloroethylene (PCE)
    Activated Carbon And Adsorption Of Trichloroethylene (TCE) And Tetrachloroethylene (PCE)

    Trichloroethylene (TCE) and Tetrachloroethylene (PCE) are two of the most common solvents that contaminate groundwater supplies in the United States. Both solvents see frequent use in the extraction of fat, in the textile industry, in the production of various pharmaceutical and chemical products. TCE is also used as a degreaser from fabricated metal parts, and PCE serves as a component of aerosol dry-cleaning solvents.

  • 3M™ Liqui-Cel™ Membrane Contactors Improve Water Quality and EDI Performance
    3M™ Liqui-Cel™ Membrane Contactors Improve Water Quality and EDI Performance

    Electrodeionization (EDI) is a widely used water treatment process. EDI technology is an electrochemical process that uses ion selective membranes and an electrical current to continuously remove ions from water. The process uses ion exchange resin to remove the ions from the feed stream, producing pure water.

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DRINKING WATER TREATMENT PRODUCTS

FLUXUS® F401 Portable Flow Meter FLUXUS® F401 Portable Flow Meter

The FLUXUS® F401 is FLEXIM's dedicated single channel portable flow meter for applications in the municipial water and wastewater sector offering long term stable and precise bidirectional flow measurements in remote areas outdoor - being ideal for water loss activities prescribed in AWWA M-36.

WEDECO TAK Series Open Channel Disinfection System by Xylem WEDECO TAK Series Open Channel Disinfection System by Xylem

WEDECO TAK Series Open Channel Disinfection System for wastewater applications.

Ozone Disinfection: 499AOZ Dissolved Ozone Sensor Ozone Disinfection: 499AOZ Dissolved Ozone Sensor

The 499AOZ sensor is intended for the continuous determination of dissolved ozone. The primary application is ozonation basins in municipal water filter plants. Ozone is also used as a disinfectant in bottling and food processing plants.

TOC Drinking Water Analysis TOC Drinking Water Analysis

Teledyne Tekmar has been the market leader in environmental and drinking water testing for decades, having invented many of the instrumental technologies used in today’s lab.  From TOC drinking water analysis to EPA compendium methods for air, soil and water, Tekmar has the right instrument for your application.

TU5 Series Benchtop Turbidimeters TU5 Series Benchtop Turbidimeters

The TU5 Series benchtop turbidimeters for drinking water and other pure water applications feature a revolutionary 360° x 90° Detection Technology™, engineered to see more of your sample than any other turbidimeter. This unique technology is used in both the TU5 online and TU5 benchtop turbidimeters, allowing you for the first time to remove the uncertainty of which measurement to trust. The 360° x 90° Detection delivers the best low level precision and sensitivity while minimising variability from test to test.

DuoSphere™ Biogas Storage DuoSphere™ Biogas Storage

Over the years, WesTech has supplied our customers with anaerobic digestion equipment that has added value to their plant operations. WesTech continues to provide valuable solutions with the DuoSphere™ Dual Membrane Gasholder.

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LATEST INSIGHTS ON DRINKING WATER TREATMENT

  • How Can We Start The Journey To Smart Water Networks?
    How Can We Start The Journey To Smart Water Networks?

    In the developed world, potable water is delivered to people via a complex infrastructure consisting of water catchment, water treatment, water storage (reservoirs, towers), and water distribution (pipes). The first two elements are well understood; what is less understood is what happens to water as it journeys to the tap.

  • Global Experts Offer 2019 Smart Water Insights
    Global Experts Offer 2019 Smart Water Insights

    What are some of the biggest global challenges, trends, and opportunities for the smart water sector in 2019? To answer these questions, the Smart Water Networks Forum (SWAN) interviewed four industry experts from Australia, North America, the UK, and India.

  • Design And Care Of Reverse Osmosis Systems, Part 3: Operation And Monitoring
    Design And Care Of Reverse Osmosis Systems, Part 3: Operation And Monitoring

    Reverse osmosis (RO) systems offer power plant owners and operators a reliable and well-proven water treatment solution. However, designing and caring for an RO system requires a thorough understanding of a plant’s water supply and the technology’s capabilities. The final article of this three-part series will address RO system operation and maintenance best practices.

  • On Site But Out Of Mind… Getting Extra Mileage Out Of Your Disinfection System
    On Site But Out Of Mind… Getting Extra Mileage Out Of Your Disinfection System

    Using on-site sodium hypochlorite generation technology to make oxidant for water and wastewater treatment is cost-effective, safe, and environmentally responsible. But, as with any piece of equipment, choosing the right one and caring for it properly impacts both life cycle costs and effectiveness. We talked with David McWalters, Field Service Manager-Americas, De Nora, to learn more.

  • How The Low Price Of Water 'Causes' Water Scarcity
    How The Low Price Of Water 'Causes' Water Scarcity

    “How can a coastal city that is flanked by an almost endless bank of water have water scarcity problems?”

  • Is A Containerized Treatment System Right For You?
    Is A Containerized Treatment System Right For You?

    As industrial facilities continually look for ways to reduce capital costs and decrease installation timelines associated with water treatment and other systems, the practice of containerizing equipment has become more prevalent. A containerized system offers many benefits of lower costs than comparable field erected buildings, faster timelines, and lower field installation requirements. 

More Drinking Water Treatment Insights

DRINKING WATER TREATMENT VIDEOS

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.

Drought Forum Webinar: The Growing Demand For Re-Used And Brackish Water Drought Forum Webinar: The Growing Demand For Re-Used And Brackish Water

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.

The New IQ SensorNet Product Video The New IQ SensorNet Product Video

The IQ SensorNet wastewater treatment process monitor is a powerful, modular system designed to be flexible enough to place anywhere in your wastewater treatment system and add to it at anytime.

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.

Science Safeguards Drinking Water From Harmful Algal Blooms

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.

More From Drinking Water Treatment Videos

ABOUT 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 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.