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

  • Veteran Potable Water Superintendent Sees Benefits Of Secondary Containment Equipment To Help Enable Use Of Chlorine Gas For Chlorination
    Veteran Potable Water Superintendent Sees Benefits Of Secondary Containment Equipment To Help Enable Use Of Chlorine Gas For Chlorination

    A veteran potable water production and treatment superintendent, currently overseeing potable water needs for a federal reservation, reports significant benefit from the availability of secondary containment equipment for chlorine gas storage, as part of a management strategy to help enable the use of that chlorination method. 

  • Solve High Alkalinity With Membrane Contactors
    Solve High Alkalinity With Membrane Contactors

    A membrane degassing system can solve high bicarbonate alkalinity that negatively affects anion bed life. 

  • Ultrasonic vs. Radar In The Water Industry
    Ultrasonic vs. Radar In The Water Industry

    In recent years, the debate about which technology is best suited for level monitoring and open channel monitoring (OCM) applications has taken some traction. There are those who argue that ultrasonic level technology has been uncontested as the standard for level and OCM applications in the water industry. The counter-argument is that radar technology is more effective because it is more robust and accurate than ultrasonic technology. 

  • Grundfos Dosing Pumps Play Important Role In Indian Desalination Plant
    Grundfos Dosing Pumps Play Important Role In Indian Desalination Plant In Minjur, a town in Thiruvallur district of Chennai in India, will soon be able to overcome a hurdle facing many growing urban areas: an adequate supply of drinking water.
  • Hassle-Free Chlorination For Large Municipalities
    Hassle-Free Chlorination For Large Municipalities

    For Robert Stout, general manager of Mid-Arkansas Utilities (MAU), the primary water provider for a three-county rural area spanning 2,220 square miles, the reason to switch to a dry calcium hypochlorite feeding system was simple, “using chlorine gas was not only dangerous for us, it was a big hassle and time-consuming.”

  • What Lies Within… What You Need To Know About Hardness Monitoring
    What Lies Within… What You Need To Know About Hardness Monitoring

    Water hardness can wreak havoc on your boilers, creating holes in tubes, eating away at the walls. To keep the hardness at bay, you’re going to need to monitor the levels of calcium and magnesium seeping into your system.  There are things you need to know to ensure that you are doing this properly. First, use an automated system to increase reaction time to hardness. Next, monitor the softeners; they are critical in keeping the system functioning. Last, learn the temperament of your individual boiler; no two are alike.  

  • Drinking Water Plant Replaced 30 Year Old Carbon Steel Piping With PVC
    Drinking Water Plant Replaced 30 Year Old Carbon Steel Piping With PVC

    The city of Virovitica in Croatia is located near to the Hungarian border. Its water works company Virkom serves approximately 20.000 people daily with drinking water. In order to assure required European potable water standards, Virkom decided in 2008 to replace the existing old sand filtration units (total flow rate approx. 320 m³/h) by new ones.

  • Project Profile: Meadow Lake MHC White Lake, MI 750 GPM Iron & Manganese System
    Project Profile: Meadow Lake MHC White Lake, MI 750 GPM Iron & Manganese System In February 2008 AdEdge Technologies, Inc. was selected as the sole vendor by Sun Communities, a nation wide owner and operator of Mobile Home Communities, to supply an iron and manganese treatment system, for the Meadow Lake MHC in White Lake, Michigan. By Adedge Technologies Inc.
  • “Eureka!” Nevada Community Rushes To Meet U.S. EPA Arsenic Level Standard
    “Eureka!” Nevada Community Rushes To Meet U.S. EPA Arsenic Level Standard

    With the United States Environmental Protection Agency (USEPA) now requiring arsenic levels of 10 ppb for drinking water, reducing high levels of arsenic in one of its community’s water supply had been a challenge for Eureka County. Find out how a community, who once searched for silver, hunted down a way to remove high levels of arsenic from its drinking water.

  • Sensing The Future: Water Technology’s 'Holy Grail'
    Sensing The Future: Water Technology’s 'Holy Grail'

    Real-time contaminant detection, featuring a network of sensors throughout the distribution network, is poised to revolutionize the water industry.

More Drinking Water Treatment Case Studies and White Papers

DRINKING WATER TREATMENT APPLICATION NOTES

  • Ultrapure Water For Determination of Toxic Elements In Environmental Analyses
    Ultrapure Water For Determination of Toxic Elements In Environmental Analyses

    In this paper the importance of reagent water quality for toxic element environmental analyses is discussed, and the suitability of fresh ultrapure water produced using MilliporeSigma water purification systems for ICP-OES and ICP-MS trace element analyses in environmental laboratories is demonstrated.

  • Application Note: Turbidity Monitoring In Drinking Water Treatment Plants

    Turbidity, or the relative clarity of a liquid (in this case drinking water), is caused by the presence of microscopic particles such as clay, silt, or other fine undissolved matter

  • 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.

  • The Basics: ORP and Free Chlorine Monitoring
    The Basics: ORP and Free Chlorine Monitoring

    Oxidation Reduction Potential or Redox is the activity or strength of oxidizers and reducers in relation to their concentration. Oxidizers accept electrons, reducers lose electrons. Examples of oxidizers are: chlorine, hydrogen peroxide, bromine, ozone, and chlorine dioxide. Examples of reducers are sodium sulfite, sodium bisulfate and hydrogen sulfide. Like acidity and alkalinity, the increase of one is at the expense of the other.

  • Membrane Degassing and Debubbling of High Viscous Fluids with 3M™ Liqui-Cel™ Membrane Contactors
    Membrane Degassing and Debubbling of High Viscous Fluids with 3M™ Liqui-Cel™ Membrane Contactors

    Increased gas content often leads to problems with bubble formation in highly viscous fluids. 3M™ Liqui-Cel™ Membrane Contactors can provide a simple, compact, and efficient in-line solution for removing bubbles from viscous liquids before they create problems in a process operation.

  • Application Note: Simultaneous Determination Of Total Bound Nitrogen (TNb) And Total Organic Carbon (TOC) In Aqueous Samples Total bound nitrogen (TNb) consists of dissolved ammonia, nitrates, nitrites, amines, and other organic nitrogen-containing compounds. TNb measurements represent an alternative to Total Kjeldahl Nitrogen (TKN) analysis for rapid screening of industrial wastewater, drinking water,agricultural run-off, and surface waters. By OI Analytical
  • Application Note: Troubleshooting A pH Electrode

    Many factors affect performance of a pH electrode. When performance degrades, it is always a challenge for the analyst to identify the cause. Common troubleshooting procedures, which include evaluation of slope, electrode drift, time response, and accuracy, take considerable time. By Thermo Fisher Scientific

  • Free Chlorine Measurement In Drinking Water Treatment

    Before water can be used as a safe and reliable source for drinking water, it must be properly treated. Since water is a universal solvent, it comes in contact with several different pathogens, some of which are potentially lethal, and inactivation is accomplished through chemical disinfection and mechanical filtration treatment. This treatment consists of coarse filtration to remove large objects and pre-treatment which includes disinfection using chlorine or ozone

  • Determination Of Pesticide Residues In Honey, By An Automated QuEChERS Solution
    Determination Of Pesticide Residues In Honey, By An Automated QuEChERS Solution

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

  • Phosphate Corrosion Control In Drinking Water
    Phosphate Corrosion Control In Drinking Water

    Corrosion occurs because metals tend to oxidize when they come in contact with oxygenated water, resulting in the formation of stable metal oxides.

More Drinking Water Treatment Application Notes

DRINKING WATER TREATMENT PRODUCTS

Capital Controls® Series CL500, CL1000 And CL1000B Residual Analyzers Capital Controls® Series CL500, CL1000 And CL1000B Residual Analyzers

The Capital Controls® CL500 residual analyzer is designed to continuously monitor free and total chlorine. The analyzer is auto ranging to 20 mg/l and operates using the amperometric method of measurement. The amperometric method is EPA approved for on-line chlorine residual monitoring in drinking water.

ModMAG® M-Series® Electromagnetic Flow Meters ModMAG® M-Series® Electromagnetic Flow Meters

Whether it’s improving accuracy, decreasing system maintenance or meeting the demands of challenging liquid conditions, Badger Meter electromagnetic meters deliver the performance your critical flow measurement applications require. Our electromagnetic flow meters are designed to achieve ± 0.25 percent accuracy.  In addition, the non-intrusive, completely open flow tube design virtually eliminates pressure loss.  And with no moving parts to impede the flow stream, maintenance is kept to a minimum – even in less than ideal fluid conditions.

Capital Controls® Series NXT3000 High Capacity Gas Feed System Capital Controls® Series NXT3000 High Capacity Gas Feed System

The Series NXT3000 High Capacity Gas Feed System is a family of vacuum-operated, solution-feed, gas dispensing components including a vacuum regulator, meter assembly and ejector to meet customer needs for feeding chlorine, sulfur dioxide, ammonia or carbon dioxide gas. The Series NXT3000 is a versatile, high quality system which operates at sonic conditions eliminating the need for differential pressure regulation across the rate control valve.

PDO evo Ozone Systems PDO evo Ozone Systems

Ozone is one of the most powerful commercially available oxidants and is commonly used for municipal water and wastewater treatment. In addition to its oxidizing capabilities, it is an environmentally-friendly method of treatment.

FlowConnect FlowConnect

FlowConnect is a built-in solution for collecting and transmitting flow data from McCrometer’s Mc Propeller and Water Specialties Propeller meters, automating data collection to provide accurate and reliable information for water resource management.

ClorTec® On-Site Sodium Hypochlorite Generating Systems SCT Series ClorTec® On-Site Sodium Hypochlorite Generating Systems SCT Series

The revolutionary new ClorTec® SCT is a fully integrated patent pending design from De Nora Water Technologies. Salt, water and electricity are electrolyzed to produce up to 4.4 lb/day (2 kg/day) chlorine equivalent of hypochlorite solution at 0.7% strength. The system offers superior health and safety benefits for employees on site due to its innovative design.

More Drinking Water Treatment Products

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

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.

Video: Variable Area Flowmeters Video: Variable Area Flowmeters
Variable area flowmeters from KROHNE offer not only the maximum possible accuracy but also maximum reliability.
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.

From Toilet To Tap Water

Alex and the crew travel to Saudi Arabia and talk to Noura Shehab, a Ph.D. student at King Abdullah University of Science and Technology (KAUST), about her research to use microbes to power sea water desalination.

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.

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.