DRINKING WATER ANALYSIS CASE STUDIES AND WHITE PAPERS

How To Clean And Handle pH Sensors
How To Clean And Handle pH Sensors

For a pH sensor to maintain an accurate reading, the sensor must remain clean. Specifically, the glass measuring electrode cannot become coated, and the reference electrode assembly must not become coated, plugged or otherwise contaminated by the process solution. Here’s how to clean pH sensors to ensure correct operation.

  • Multi-Point Chlorination Process To Treat Raw Water Yields To A Multi-Barrier Chain Of Treatment Technologies
    Multi-Point Chlorination Process To Treat Raw Water Yields To A Multi-Barrier Chain Of Treatment Technologies

    For decades, a Winnipeg utility used a multiple point-chlorination process to treat raw water drawn from remote Shoal Lake. Concerns eventually arose about the potential presence of chlorine-resistant pathogens–Crytosporidium and Giardia–and residual disinfection byproducts, which coincided with encroaching development near the lake. The Clari-DAF system was selected and now removes 70 percent of the organics at the Winnipeg plant, which also improves filtration and extends the intervals between filter backwashes.

  • Ozone Vent Gas For Aeration At Wastewater Plant Expansion In China
    Ozone Vent Gas For Aeration At Wastewater Plant Expansion In China

    The Jimo, China, municipal wastewater plant was originally designed to treat a combination of municipal and textile wastewater (120,000 m3/d) with Class IB effluent limits for BOD, COD, ESS, TN, NH3-N and TP.

  • 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.

  • In-Situ Oxygenation System Enables Increase In Capacity For Municipal Wastewater Treatment Facility
    In-Situ Oxygenation System Enables Increase In Capacity For Municipal Wastewater Treatment Facility

    To increase capacity within the existing footprint of a wastewater treatment facility in Michigan, two existing tanks were converted to aeration tanks with pure-oxygen aeration provided by Praxair’s In-Situ Oxygenation (I-SOTM) System.

  • Monitoring Lead In School Drinking Water
    Monitoring Lead In School Drinking Water

    The EPA’s guidance documentation “3T’s for Reducing Lead in Drinking Water in Schools and Child Care Facilities: Training, Testing, Telling” recommends for schools to routinely test their facility’s drinking water, with a focus on lead levels in drinking water fountains.

  • Retrofit Membrane System Treats High Turbidity Water
    Retrofit Membrane System Treats High Turbidity Water

    The City of Wilmington, Delaware is situated where the Christina River and the Brandywine Creek flow into the Delaware River.

  • High Turbidity Water Treatment Reached With Mobile Water System
    High Turbidity Water Treatment Reached With Mobile Water System

    Starting in 2010, the drinking water plant in Wellsboro, PA, began experiencing high turbidity and algae in the water which caused emergency notices for citizens to boil their water before use.

  • The Most Misunderstood Fact Behind Dissolved Oxygen Sensors (It’s The Pressure, Not The Concentration)
    The Most Misunderstood Fact Behind Dissolved Oxygen Sensors (It’s The Pressure, Not The Concentration)

    A dissolved oxygen sensor ought to be simple to understand. Whether it is membrane or optically based, it gives a signal that is proportional to the concentration of oxygen concentration in water.

  • Lightning Fast Response Prevents Extended Down Time
    Lightning Fast Response Prevents Extended Down Time

    The City of Gordon Texas’s drinking water facility was struck by lightning. Thinking long term, and desiring the latest technology available, the City took this opportunity to upgrade their on-line instrumentation with a range of new continuous monitoring on-line instruments including chlorine analyzers, pH monitoring, temperature monitoring, and turbidity monitoring.

  • Turbiwell Comparision Report Before And After Upgrade
    Turbiwell Comparision Report Before And After Upgrade

    Russellville water treatment plant is a surface water plant using traditional clarification, filtration, and treatment. The plant historically has used traditional contact turbidimeters that employ tungsten lamps that required quarterly maintenance, but replaced their turbidimeters with Swan Turbiwell turbidimeters in 2012. Read the full report for a comparison of the performance of the Swan Turbiwell to the previously installed turbidimeters. 

Utah Water District Saves Time And Resources, Improves Accuracy By Upgrading Sensors And Analyzers
Utah Water District Saves Time And Resources, Improves Accuracy By Upgrading Sensors And Analyzers

Monitoring chlorine and fluoride levels in the drinking water of Utah’s Taylorsville-Bennion Improvement District used to be expensive, labor intensive, and often sensitive to interference from the vari­able frequency drives used to operate the chlorine injection pumps. That is, until the district upgraded to Rosemount free chlorine and fluoride sen­sors and analyzers from Emerson.

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DRINKING WATER ANALYSIS PRODUCTS

Capital Controls® Series WP840 Gas Feeders Capital Controls® Series WP840 Gas Feeders

Easy to install for indoor installation, each Series WP840 wall panel is factory tested and needs no field adjustment prior to start-up. Six different flowmeter capacities ranging from 10 to 500 PPD (200 g/h to 10 kg/h) provide versatility in meeting gas flow requirements.

Fusion Total Organic Carbon (TOC) Analyzer Fusion Total Organic Carbon (TOC) Analyzer

The Fusion Total Organic Carbon (TOC) Analyzer utilizes UV Persulfate oxidation allowing superior carbon liberation from even the most challenging matrixes. Low-end sensitivity is achieved from a Non-Dispersive Infrared (NDIR) detector. The Fusion Total Organic Carbon (TOC) UV Persulfate Analyzer offers more flexibility, intelligence and user friendliness making this analyzer ideally suited for the most demanding laboratory needs.

Signal Converter For Electromagnetic Flowmeters Signal Converter For Electromagnetic Flowmeters

The electromagnetic signal converter IFC 050 is a perfect choice for measuring volumetric flow in various kinds of applications in the water industry but also in the food and beverage business.

TruLab pH 1110 Laboratory Benchtop Meter TruLab pH 1110 Laboratory Benchtop Meter

The YSI TruLab® line includes the 1110 (single channel), 1310 and 1310P (single channel) and 1320 and 1320P (dual channel) instruments providing easy-to-use and calibrate instruments ideal for the laboratory.

M2B Transmitter M2B Transmitter

The Millennium II Basic (M2B) universal transmitter is a robust and reliable safety solution delivering highly accurate monitoring of toxic and combustible gases. Utilizing our state of-the-art sensor technology, it provides a flexible detection platform that includes all the advanced features users in the field demand with complete ease-of-use and operation.

ATP And DNA Services ATP And DNA Services

Combining LuminUltra’s 2nd Generation ATP monitoring solutions with Microbe Detectives’ advanced DNA analysis and classification service allows you to identify and analyze the entire microbiome. This provides critical answers as to why control was lost AND how to fix and prevent future problems. For drinking water and wastewater utility managers, that means mitigating risk while improving capital and operating efficiencies.

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DRINKING WATER ANALYSIS PODCASTS

Predictive Maintenance Enabled By Moving Secured Data To The Cloud Predictive Maintenance Enabled By Moving Secured Data To The Cloud

Cloud-based monitoring and reporting was all the rage at WEFTEC 2017. Water Talk sat down with Tom Perry, National Product Manager with Veolia to discuss Aquavista, one of the more established technologies for capturing critical data, storing it in the cloud and allowing it to be accessed real time, 24/7 from any smart, web-enabled device.

Real-Time Monitoring Aids Adoption Of New Water Treatment Technologies Real-Time Monitoring Aids Adoption Of New Water Treatment Technologies

With the ability to store mass amounts of data, real-time monitoring and the timely analysis of that data is spurring significant change in the water industry. As Rick Bacon, CEO of Aqua Metrology Systems, explains in this Water Talk interview, high frequency data is not only aiding in the battle to identify contamination but also in summarizing performance once a solution has been installed to fix it.

Microbial Contamination Monitoring For Water Distribution Systems Microbial Contamination Monitoring For Water Distribution Systems

Back in 2014, Louisiana’s Department of Health and Hospitals wrote an executive order for municipalities to boost their chlorine residuals as high as possible to burn off all biofilm and stop the outbreak of brain-eating amoeba (Naegleria fowleri) that had been detected as the cause of death in a number of individuals.

Water Regulations Change As Data Accuracy Intensifies Water Regulations Change As Data Accuracy Intensifies

It makes sense that water regulations are written in line with the available means to detect contaminants. The same logic would suggest that as newer, more accurate diagnostic technologies become available, the list of MCLs and the depth of water regulations will continue to evolve.

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DRINKING WATER ANALYSIS NEWS AND HEADLINES

Siemens Reveals 3 Key Factors For Water Quality Siemens Reveals 3 Key Factors For Water Quality

Jack Roushey, product manager for instrumentation at Siemens, gives his take on trends in the water industry, including the three most important factors for ensuring a quality end product — safety, performance, and reliability within your process measurement and control regime. Talking to Water Online's Kevin Westerling, Roushey illuminates the impact of these important parameters with a discussion on lead in drinking water, which has recently caused contamination events, regulatory scrutiny, and a mandate for improved process control.

Capital Controls® MicroChem®3 Multi-Parameter Analyzer And Controller Capital Controls® MicroChem®3 Multi-Parameter Analyzer And Controller

From the experts in chlorine management comes a multi-parameter water analysis system offering both chlorine measurement and control in one versatile instrument. Tailor the modular MicroChem®3 to your individual application with up to three measurement parameters. Watch the video to learn more.

Mazzei Degas Separators Selected For Wichita Aquifer Project Mazzei Degas Separators Selected For Wichita Aquifer Project

A key component of the water supply plan for the City of Wichita, Kansas, was recharging the large aquifer that lies under the region with water from the Little Arkansas River. The river basin contains substantial farming operations which, during rain events, spike the river water with the commonly used herbicide Atrazine. Atrazine concentrations in the river frequently rose forcing the city to shutdown the bank filtration system. Advanced oxidation process (AOP) was selected to remove the herbicide. The AOP reactor’s design limited the amount of hydraulic backpressure it could tolerate. Consequently, Mazzei was challenged by the project’s design team to remove the entrained gas bubbles that remained from the prior oxidation treatment at a “not to exceed” hydrostatic backpressure of 19 feet.

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DRINKING WATER ANALYSIS SUPPLIERS

  • RELIANT Water Technologies
    RELIANT Water Technologies

    Reliant Water Technologies is a global marketing company that supplies high quality, one-of-a-kind products to the water and wastewater treatment industries.

  • Hach Company
    Hach Company

    For more than 60 years, Hach has been at the crest of the industry - finding solutions that help you best manage your water. Our analytical instruments and reagents are used to test the quality of water in a variety of industries and markets - from around the corner, to around the globe.

  • Emerson
    Emerson

    Rosemount Analytical, one of Emerson’s leading process management companies, is the world’s premier supplier of technologies for liquid and combustion analysis, process analysis, gas measurement, and emissions monitoring. With an 80-year legacy of manufacturing liquid and gas analytical products that have revolutionized the process industries, we continue to provide real, quantifiable analytical solutions.

  • Myron L Company
    Myron L Company

    The Myron L Company, originally founded in 1957 as a Research and Development company, is a privately owned and operated California Corporation

  • OI Analytical
    OI Analytical

    OI Analytical designs, manufactures, and supports analytical instrumentation used for sample preparation, detection, and measurement of chemical compounds and elements. Our products are supported by an ever-increasing network of sales, service, and applications personnel. The Company's products are sold worldwide by direct sales personnel, independent representatives, and distributors

  • Real Tech Inc.
    Real Tech Inc.

    Real Tech Inc. Is dedicated to providing high quality UV photometric and spectroscopic analytical instrumentation for the water and wastewater industry.

  • Swan Analytical USA
    Swan Analytical USA

    Swan Analytical Instruments is a leading manufacturer of high quality on-line analytical instruments for water analysis in applications such as high purity water, steam, condensate, cooling water, potable water, and effluent.

  • Thermo Scientific
    Thermo Scientific

     

    Thermo Fisher Scientific offers a full range of water analysis instruments from pH, ISE, conductivity and dissolved oxygen meters, electrodes and solutions, to colorimetry, titration and on-line process monitors.

     

  • YSI, a Xylem brand
    YSI, a Xylem brand

    YSI offers a full line of environmental monitoring and sampling instruments, systems, and services for water quality and water velocity data. Our multiparameter instruments, aquaculture monitoring systems, handheld sampling instruments, and complete line of SonTek products can be incorporated into any of your monitoring or sampling applications.