DRINKING WATER TREATMENT

The Smarter Water Manager
The Smarter Water Manager

Communities around the world are facing a growing storm. Complex challenges including water scarcity, changing demographics, extreme weather patterns, and aging or overly stressed infrastructure are colliding to threaten critical water, energy, transport, enterprise and health networks. The water industry is in the eye of the storm.

DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • Drinking Water Turbidity Monitoring: 7 Key Considerations
    Drinking Water Turbidity Monitoring: 7 Key Considerations

    Turbidity, as a measure of cloudiness or haze in water, has many useful applications for industrial processes, pharmaceutical manufacturing, environmental monitoring, and utility applications. Unlike general commercial applications, however, the use of turbidity readings in municipal drinking water treatment comes with unique demands and considerations related to regulatory compliance.

  • Safety And Performance — The Keys To Water Management
    Safety And Performance — The Keys To Water Management

    The key aspects to any process measurement and control of water is the quality and safety of the end product, in this case drinking water.  There are three important factors that contribute to the quality of the product.  Those factors are the performance of the measurement and control instrumentation, the long term reliability of the measurement and the inherent safety to the consumer.

  • Town Of Hillsborough Relies On Hach For Free-Ammonia Testing And Nitrification Control When Bay-area water wholesaler San Francisco Regional Water System (SFRWS) changed its residual drinking water disinfection process from chlorine to chloramine, the town of Hillsborough’s Water Quality staff faced the challenge of updating its water testing procedures to prevent nitrification and continue to meet state-mandated drinking water quality standards.
  • Multi-Barrier Disinfection Strategy - New York City (Case Study)
    Multi-Barrier Disinfection Strategy - New York City (Case Study)

    New York City is home to more than 8 million people, making it the most populous city in the United States. The majority of New York's drinking water is supplied by the Catskill/Delaware watershed, located approximately 100 miles outside the city. Historically, NYC has not filtered the water from this system, nor did they require any additional barriers to microbial contaminants due to the pristine nature of the watershed.

  • Siemens Is Doing Its Part In Maintaining Drinking Water Purity
    Siemens Is Doing Its Part In Maintaining Drinking Water Purity

    Lead in drinking water has become a very visible issue of considerable concern over the last few months.  While municipalities across America have been scrutinizing the quality of their drinking water, it should at least be some consolation that manufacturers of measurement instrumentation have taken serious steps to assure that they are not contributing to the problems that have been encountered.

  • Do You Really Want Manual Calibration?
    Do You Really Want Manual Calibration?

    Many of us who have been around the water industry for a while can recall the days of manually calibrating online analyzers.  The arsenal would include:  a cart of tools, calibration standard, “calibrators”, and “zero sources”.  These tools would only be used a few times a year, if that.  Although the calibration of water analysis instruments should be performed on a monthly basis, most operators would admit to only calibrating them once or twice a year. 

  • Ultrapure Boiler Water Production From Municipal Wastewater

    The term wastewater can be applied to a wide range of water sources from municipal sewage to storm runoff to industrial discharge water. By Michael Sheedy, Vice President of Technology and George Di Falco, Marketing Communications, Eco-Tec Inc.

  • CCD Technology Succeeds With Well Water Purification
    CCD Technology Succeeds With Well Water Purification

    The Kittansett Golf Club in Marion, Massachusetts is rated one of America’s 100 Greatest Golf Courses by Golf Digest Magazine.

  • Retrofitting Malta Desalination Plants With Thin Film Nanocomposite (TFN) SWRO Membrane
    Retrofitting Malta Desalination Plants With Thin Film Nanocomposite (TFN) SWRO Membrane

    Malta is an archipelago of three islands situated in the Mediterranean Sea, around fifty miles south of Sicily. There are no rivers of any significance on the islands, and the sparse annual rainfall is only about 500 mm. There is a water deficit in Malta. It occurs especially in summer when there is a great demand from the farmers for their irrigation and from the tourism sector.

  • Basin Nozzle Manifold Contacting System Installation Remediates Taste And Odor Compounds, Meets Disinfection Goals
    Basin Nozzle Manifold Contacting System Installation Remediates Taste And Odor Compounds, Meets Disinfection Goals

    A water quality audit revealed that two of the largest drinking water plants in the City of Montreal were out of compliance with Quebec’s latest water quality rules. Both drinking water facilities were located in heavily populated areas; consequently, plant modifications had to be accomplished within their existing infrastructure footprints.

More Drinking Water Treatment Case Studies and White Papers

DRINKING WATER TREATMENT APPLICATION NOTES

More Drinking Water Treatment Application Notes

DRINKING WATER TREATMENT PRODUCTS

Model 4200 Gas Vacuum Chemical Feeder Model 4200 Gas Vacuum Chemical Feeder

The JCS Industries Model 4200 Gas Vacuum Chemcial Feeder mixes and feeds gaseous chemicals commonly used for water and wastewater disinfection accurately, reliably and safely.

Xylem’s Leopold Oxelia™ for Drinking Water Applications Xylem’s Leopold Oxelia™ for Drinking Water Applications

Biological and chemical contamination in drinking water poses a significant public health risk and plant operators require a treatment system that allows them to produce a safe and reliable supply of clear, good-tasting and biologically-stable finished water with the lowest concentrations of non-desired substances.

Electrochemical Nano Diffusion (END) Electrochemical Nano Diffusion (END)

Based on proven electrodialysis reversal (EDR) technology, the END® system transforms two key components of traditional EDR to deliver maximum recovery with minimum energy consumption in numerous brackish water treatment applications.

Signet 2250 Hydrostatic Level Sensor Signet 2250 Hydrostatic Level Sensor
The Signet 2250 Hydrostatic Level Sensor for level and depth control has a one-piece injection molded PVDF body and ceramic diaphragm for superior compatibility in corrosive liquids
Custom Designs By Pepcon Systems Custom Designs By Pepcon Systems
PEPCON’s staff consists of highly trained and experienced engineers that will tailor your system to meet your specific project objectives. Our Modular BP electrolytic cell arrangements allow for compact systems designs.
CivilStorm - Stormwater Modeling And Analysis Software CivilStorm - Stormwater Modeling And Analysis Software

Stormwater systems can be very complex to model, with flow backups and reversals, surcharged pipes, and more.

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LATEST INSIGHTS ON DRINKING WATER TREATMENT

  • Point Level vs. Continuous Level Measuring Technologies
    Point Level vs. Continuous Level Measuring Technologies

    While point level measuring approaches are regarded as simple and user-friendly, they lack the capabilities of more sophisticated continuous measuring instruments.

  • Building Resilient Drinking Water Treatment Operations For A Sustainable Water Future
    Building Resilient Drinking Water Treatment Operations For A Sustainable Water Future

    It's spring and the algae are in bloom, but harmful algal blooms are far from the only threats to drinking water. Fortunately, there are advanced treatment technologies to handle some of the most persistent contaminants today, including algal toxins, Cryptosporidium, and 1,4-dioxane.

  • Innovative, Collaborative, Inevitable: Furthering The Evolution Of Smart Water In North America
    Innovative, Collaborative, Inevitable: Furthering The Evolution Of Smart Water In North America

    A Q&A with Gary Wong, chairman of the SWAN North American Alliance

  • How To Cost-Effectively Remove Multiple Contaminants From Water Simultaneously
    How To Cost-Effectively Remove Multiple Contaminants From Water Simultaneously

    Water utilities must protect the public health by producing a final product that meets all regulatory requirements. In addition, the water must be pleasing to the customer, with no taste or odor issues. And finally, utilities must stay abreast of emerging contaminants, health advisories, and new regulations. It’s a constant challenge to shoulder these responsibilities while staying within tight budgets. Utilities need a technology that helps them achieve multiple goals cost-effectively.

  •  How To Improve Test Accuracy With The Latest Sampling Technology
    How To Improve Test Accuracy With The Latest Sampling Technology

    Sampling and laboratory testing are major responsibilities for water professionals. Test results are used for process control, and ultimately to determine that water is safe for drinking, reuse, or discharge to the environment. Regulatory agencies rely on reported results for proof of permit compliance. So, obtaining representative, properly collected and preserved samples is the first critical step to ensure accurate test results.

  • How To Save Costs With Simple, Effective Data Management
    How To Save Costs With Simple, Effective Data Management

    Water and wastewater utilities must monitor numerous aspects of their systems on a continuous basis. Various instruments are used to measure these processes, producing volumes of data every day. Endress+Hauser is a leading supplier of products and services for process measurement and automation. Water Online spoke with three of Endress+Hauser's experts to find out how data loggers and managers can save costs while providing effective data management. 

More Drinking Water Treatment Insights

DRINKING WATER TREATMENT VIDEOS

Video: OPTIMASS Video: OPTIMASS
OPTIMASS the new family of Coriolis mass flowmeters is now improving performance in more applications for more customers than ever before.
Earth Day Outreach: Insights On Water Conservation And Quality Earth Day Outreach: Insights On Water Conservation And Quality

"Wastewater Dan” talks with FOX 4 News Kansas City about drought conditions in California and procedures to conserve water in the home. He also demonstrates the use of a total dissolved solids (TDS) meter to test drinking water quality, and interprets the results.

Building Water Confidence With UV Disinfection (Video) Building Water Confidence With UV Disinfection (Video)

TrojanUV is dedicated to providing the world with more efficient, environmentally-friendly water treatment solutions. This video shows how we’re helping municipalities deliver water confidence to their communities.

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.