DRINKING WATER TREATMENT

Add Flow To Your Liquid Analysis With Advanced Analytical Instrumentation

Averting regulatory violations and fines. Avoiding system disruptions. Maintaining effective monitoring in complex applications. How do you tackle these kinds of age-old plant monitoring problems? 

DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • Municipality Removes Biofilm, Improves Water Quality, Lowers Dosage With MIOX
    Municipality Removes Biofilm, Improves Water Quality, Lowers Dosage With MIOX

    Looking to reduce potential disinfection byproducts issues that new and difficult regulations were requiring, a Tennessee municipality began investigating alternative water treatment disinfection methods in an effort to reduce the potential liability (RMP) involved with using and storing gas chlorine. Within months of switching to a mix of oxidants (MOS), a difference was noted in the systems residual, residual was no longer dead spotting in low flow areas, and much higher residual was noted in areas that had been difficult to maintain At the end of the first year of operation the municipality had also documented a reduction in their disinfection byproducts formations, specifically both TTHMs and HAAs, which were both reduced by 50% in direct comparison with the quarterly results from the previous year.

  • Full Scale Installation: Village Of Bartlett, Illinois

    Located 35 miles northwest of Chicago, current population approximately 36,000. Average radium levels approximately 9 pCi/L. No other treatment, only the addition of chlorine and polyphosphate.

  • Technology Qualification Of Liqui-Cel® Membrane Contactors For Deoxygenation Of Low Salinity Water For Polymer Flooding
    Technology Qualification Of Liqui-Cel® Membrane Contactors For Deoxygenation Of Low Salinity Water For Polymer Flooding

    Polymer flooding using low salinity water has been shown to improve oil reservoir recovery rates by altering the reservoir characteristic from an oil-wet state to a water-wet state. It has also been shown to be cost competitive with other Enhanced Oil Recovery (EOR) processes. The combined cost savings and increased recovery rate have prompted a lot of attention in the polymer flooding process with low salinity water in recent years.

  • Article: A Field Testing Must Have Device
    Article: A Field Testing Must Have Device To take control of our water quality, we first need to know what's in our water. Having portable testing devices to measure important water quality parameters in the field empowers water treatment professionals with improved water quality understanding, enabling them to take more immediate and effective action. By Real Tech Inc.
  • Solving A Taste and Odor Problem Step By Step (Article)
    Solving A Taste and Odor Problem Step By Step (Article)

    The City of Alliance Ohio’s water system has experienced annual Taste and Odor (T&O) events since the mid 1950’s, when the first of two reservoirs, Deer Creek Reservoir, was placed into service. Nutrient contaminants, in particular phosphorous, in the watershed accumulate in the reservoirs causing algal blooms. By Terry Keep of TrojanUV, Said Abou Abdallah of Arcadis, and Dr. Dean Reynolds, Department of Water Treatment City of Alliance, Ohio

  • Raw Water Treatment For Drinking Water Production
    Raw Water Treatment For Drinking Water Production

    Water is an essential element of life: it accounts for 70% to 80% of the weight of a human being. The quality of water is an important parameter that affects all aspects of the well-being of ecosystems and mankind, from human health, to food production, economic activities and biodiversity.

  • Project Profile: Highland Hills MHC Highland, MI 450 GPM AD26 Arsenic, Iron System In January 2008 AdEdge Technologies, Inc. was selected among other vendors by Nationwide MHP to supply a turnkey arsenic, iron, and manganese treatment system for the Highland Hills MHP in Highland, Michigan. The system consists of multiple wells that combine together to serve potable water to 306 connections and a population of 765 in the community. By Adedge Technologies Inc.
  • The Benefits Of A Venturi Meter
    The Benefits Of A Venturi Meter

    With the introduction of new measurement technologies and the myriad of performance claims from sale literature, it’s easy to lose sight of the important elements that an effective flow meter offers no matter what technology is used. Long known for their longevity, reliability, and long term performance, Venturi meters provide the widest variety of measurement options in piped systems for liquids, gas, steam, and mixed media of any metering technology – all while offering the highest degree of traceable accuracy. By Primary Flow Signal, Inc.

  • Technology Advancements Improving Real Time Spectral Analysis

    Real time spectrophotometers offer the immediate detection capability of a wide range of important and emerging contaminants of concern.

  • On-Site Chlorine Generation Replaces Conventional Chlorine Gas Feed System In Scottsdale AZ
    On-Site Chlorine Generation Replaces Conventional Chlorine Gas Feed System In Scottsdale AZ

    The city of Scottsdale, Arizona, a community of more than 200,000 residents was historically totally dependent on groundwater resources.  By the mid 1980’s, the city began putting together a multi-faceted water resource program to provide the community with a long-term sustainable water supply.

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DRINKING WATER TREATMENT APPLICATION NOTES

More Drinking Water Treatment Application Notes

DRINKING WATER TREATMENT PRODUCTS

Activated Carbon for Emerging Pollutants

Activated Carbon for Emerging Pollutants

The presence of active pharmaceutical ingredients, radio-opaque substances and endocrine disrupting chemicals in raw water sources is a relatively new emerging issue in relation to drinking water quality. However, the in"uence of pollutants on health and general well-being is becoming apparent with the incidence of carcinoma increasing and fertility rates being affected. A solution for the ef#cient removal of these substances from water use by production sites is required.

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.
Aztec 600 Low Range Manganese Analyzer

Aztec 600 Low Range Manganese Analyzer

The Aztec 600 Low Range Manganese Analyzer AW634 offers reliable and accurate on-line analysis of manganese up to 0.10 ppm Mn.
Filtration And Separation Solutions

Filtration And Separation Solutions

Veolia Water Technologies combines innovative technology with industry experience to provide economical and effective operation of filtration and water treatment applications.

EM-Pure™ Membrane Systems

EM-Pure™ Membrane Systems

As a preferred GE partner, we offer the full line of GE Membrane Systems, products and services which include complete systems, membrane elements, controls, filters, high-pressure pumps and maintenance plans. The GE brand is synonymous with quality, engineering and craftsmanship! With Filtronics, you will get quick delivery, fast installation, responsiveness to your concerns, ease of use and extreme reliability.

Disinfection: FCL<I>i</I> Free Chlorine Measuring System

Disinfection: FCLi Free Chlorine Measuring System

Measuring free chlorine for on-line continuous applications can be accomplished in fresh water applications using the free chlorine system FCL without the use of chemical reagents or pre-treatment. The complete system includes a sensor, cable, analyzer, and flow controller. Continuous pH correction eliminates expensive and messy reagents and troublesome sample conditioning systems in samples having pH as high as 9.5. The full feature-packed analyzer includes dual outputs, three programmable alarm relays and a two-line display with a choice of six languages.

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LATEST INSIGHTS ON DRINKING WATER TREATMENT

  • Decrease Membrane Treatment Capital And O&M Costs With Optimum Flux Rates
    Decrease Membrane Treatment Capital And O&M Costs With Optimum Flux Rates

    Despite a global effort to standardize units of measure to the metric system, the water treatment industry still follows the U.S. trend in resisting that directive by referring to water volumes in treatment plants as gallons per day (GPD).  While achieving a specified permeate GPD is certainly important in overall membrane plant design, production capacity has absolutely nothing to do with determining optimal methods of treating site-specific feedwaters and offers no indication of potential membrane fouling rates and related maintenance costs. To evaluate these factors, knowledgeable professionals rely on membrane flux rates as the key consideration in achieving optimal system design and operation. By Harold G. Fravel Jr., Executive Director, American Membrane Technology Association and Karen Lindsey, VP, Avista Technologies, Inc.

  • The UV Uprising: How UV Disinfection Will Claw Its Way To Prominence
    The UV Uprising: How UV Disinfection Will Claw Its Way To Prominence

    Chlorination in all of its forms — gas, liquid, or solid — has been the primary way for treatment plants to disinfect the treated wastewater. The treatment plants that use gas chlorination must face federal regulatory oversight in the form of a Risk Management Program (RMP). Liquid chlorine plants trade in the regulatory oversight for a more expensive and less effective product. While chlorine in its solid form is good for small treatment facilities known as package plants (named for their mobility). However, ultraviolet (UV) technology is rapidly altering the landscape of disinfection throughout the industry. By Sheldon Primus, MPA, COSS

  • Has Fracking Gone ‘Green’?
    Has Fracking Gone ‘Green’?

    There are few topics more controversial these days than hydraulic fracturing ("fracking"). While the debate rages on as to whether fracking poses a risk to water quality, a new desalination technique addresses two other environmental concerns: water scarcity and greenhouse gas (GHG) emissions. Developed by researchers at the University of British Columbia (UBC), the breakthrough technology uses excess carbon dioxide created in the fracking process to desalinate the process water, making it available for water reuse. It also generates chemicals — hydrochloric acid and carbonate salts — that are valuable for many industrial applications.

  • Integrated Smart Device Technologies: The Road To Smart City Infrastructure
    Integrated Smart Device Technologies: The Road To Smart City Infrastructure

    Phones have now become smart phones, water has become smart water, and cities are now trending towards becoming smart cities, but what does all this mean and how do we effectively make our water infrastructure smarter?

  • Next-Generation Arsenic Removal
    Next-Generation Arsenic Removal

    A novel process gives spent adsorptive media — and utilities’ budgets — new life.

  • Disinfection Byproducts: Treatment Options And Challenges For Public Water Suppliers
    Disinfection Byproducts: Treatment Options And Challenges For Public Water Suppliers

    Regulated and emerging disinfection byproducts (DBPs) pose several challenges for water suppliers, but there is a variety of cost-effective cures.

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DRINKING WATER TREATMENT VIDEOS

Video: Hanna Instruments 98703 Portable Turbidity Meter

Video: Hanna Instruments 98703 Portable Turbidity Meter

The Hanna Instruments 98703 portable turbidity meter is perfect for stormwater testing.
Introducing EXO - A New, State-Of-The-Art Water Monitoring Platform Video

Introducing EXO - A New, State-Of-The-Art Water Monitoring Platform Video

EXO, a state-of-the art water quality monitoring platform, is designed to address the many challenges of collecting accurate field data in the natural environment.

Video: TETRA&reg; Filtration Systems

Video: TETRA® Filtration Systems

Download this video to learn more about Severn Trent Services' award-winning TETRA DeepBed wastewater filtration technology.
Video: Amiad AMF Filters

Video: Amiad AMF Filters

The Amiad automatic microfiber (AMF) filtration system delivers filtration down to the 2-micron level without the use of disposable cartridges. Polyester microfibers wound tightly around specially designed cores capture suspended solids.
Video: UAT™ Membrane Filtration Systems

Video: UAT™ Membrane Filtration Systems

Using high quality components, the skid-mounted UAT systems are engineered to effectively produce treated water, free of particulate matter or contaminants
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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.