DRINKING WATER TREATMENT

Balancing The Yin And Yang Of Water Pressure
Balancing The Yin And Yang Of Water Pressure

All the effort and expense required to produce high-quality water can be for naught if the distribution system cannot maintain appropriate pressure to deliver it efficiently, at a reliable flow rate. Simply pumping more pressure into the system is not the answer. Learn how new pressure monitoring options make it easier to track pressure in every zone to deliver customer satisfaction at peak energy efficiency.

DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • Generating Station Maximizes Efficiency By Choosing A Membrane Decarbonation System
    Generating Station Maximizes Efficiency By Choosing A Membrane Decarbonation System

    When dissolved carbon dioxide in the water began overloading the anion resin and decreasing capacity at its Rokeby Generating Station, Lincoln Electric Systems had to act quickly to update its winter contingency plans and meet increasing demand. In this case study, learn why the municipality chose a membrane degasifying system over chemical treatment options or a forced draft aerator, thus reducing costs and improving overall efficiency by minimizing downtime.

  • The Role Of pH Measurement During Coagulation
    The Role Of pH Measurement During Coagulation

    In the wastewater treatment industry, coagulation has become one of the most widespread processes for effectively separating contaminants and effluent. But coagulation is a complicated and sensitive process, one that alters the chemical balance of the wastewater in order to strip it of unwanted constituents. As in many such processes, pH plays a critical role, and treatment professionals must analyze it closely if they want to properly coagulate their product.

  • How Calibration Impacts Flow Meter Performance
    How Calibration Impacts Flow Meter Performance

    Utility managers and operators rely on flow meters to provide critical information for process monitoring and control. They require and fully expect the flow data to be accurate and reproducible.

  • 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.

  • Mass Or Volume? A Weight Off The Bottom Line
    Mass Or Volume? A Weight Off The Bottom Line

    Confusion often arises over the difference between mass and volume flow measurement and when a particular measurement should be applied.

  • Bulk Emergency Chlorine Vapor Scrubber System Restored For Oklahoma City
    Bulk Emergency Chlorine Vapor Scrubber System Restored For Oklahoma City

    As a bulk emergency chlorine vapor scrubber system approached the end of its anticipated 20-year useful life, the city engaged Integrity Municipal Systems, LLC (IMS) inspected the equipment and proposed a system refurbishment plan that would ensure proper system performance and safe storage of the 30,000 gallons of corrosive caustic soda contained within it.

  • Desalinated Water Supply Helps Plant Meet Strict Environmental Regulations
    Desalinated Water Supply Helps Plant Meet Strict Environmental Regulations

    STX Heavy Industries, a Korean EPC, recently implemented a flue-gas desulfurization (FGD) system at a coal-fired power plant in Chile in order to comply with the country's strict environmental regulations. The FGD process requires large amounts of high-quality water. STX.

  • TotalCare Condition Audit Results In Energy Savings Of 80% And Improved Controls
    TotalCare Condition Audit Results In Energy Savings Of 80% And Improved Controls

    Xylem TotalCare Condition Audit, an inspection and recommendation program that helps plant operators find ways to lower maintenance costs by identifying inefficiencies in the operation of water and wastewater equipment, was elected to audit the American Canyon Wastewater Treatment Plant (WWTP) in California.

  • Case Study: Chemplast Chooses Aquatech’s HERO™ & ZLD The Chemplast Mettur plant uses the Cauvery River as their main fresh water source. A strong industrial growth in recent years has resulted in water scarcity in the region. Industries are also required to follow strict environmental norms for discharging effluents. The intent of a Waste Water Treatment Plant was to have complete treatment, recycle and reuse of the combined waste water streams to reduce intake from the Cauvery River while not discharging any liquid waste streams. By Aquatech International Corporation
  • Ozone Demand Testing = Disinfection Project Success
    Ozone Demand Testing = Disinfection Project Success

    Water and wastewater facilities are increasingly looking to ozone disinfection. A strong and indiscriminant oxidant, ozone can effectively address treatment issues with THMs and DBPs in the disinfection process. Ozone disinfection is also a proactive step toward addressing future rules on endocrine disrupting compounds (EDCs) and other trace organics at both water and wastewater plants. While there are many aspects to ozone disinfection system design, the single most important factor in project success is a thorough understanding of your facility’s ozone demand profile. This article provides an outline of the key factors to make your ozone demand test -and ozone project- a success. By Thoram Charanda and Louis LeBrun

More Drinking Water Treatment Case Studies and White Papers

DRINKING WATER TREATMENT APPLICATION NOTES

More Drinking Water Treatment Application Notes

DRINKING WATER TREATMENT PRODUCTS

InnovaSwitch™ Flow Switch for Gases & Liquids InnovaSwitch™ Flow Switch for Gases & Liquids

Switches on a flow/no flow condition in both gases and liquids. Flow Switch range of 0.01 to 5 sfps (.003 to 1.524 smps) in liquids and 0.1 to 500 sfps (.03 to 152.4 smps) gases. Response Time of 0.5 to 10 seconds (media dependent) Wide operating temperature range of -100F to +390F (-70C to 200C) CE, CENELEC and CSA approvals.

Capital Controls® Series WP70CV3 Gas Feeders Capital Controls® Series WP70CV3 Gas Feeders

Easy to install, each Series WP70CV3 wall panel feeder is factory tested and needs no field adjustment prior to start-up. Eleven different flowmeter capacities ranging from 5 to 3000 PPD (100 g/h to 60 kg/h) provide versatility in meeting gas flow requirements.

Process Automation Process Automation

Festo is a leading global manufacturer of automation technology including systems, components, and controls for process control and factory automation solutions.

Iron and Manganese Removal by Filtration Using Electromedia® I Iron and Manganese Removal by Filtration Using Electromedia® I
A simple, compact iron and manganese filtration system that effectively removes iron and manganese concentrations without the use of greensand or potassium permanganate.
WaterCAD WaterCAD

Utilities and engineering firms around the world trust WaterCAD as a reliable decision-support tool for their infrastructure. Design new water systems and manage existing water networks effectively to reduce disruption risks and energy use.

Capital Controls® CHLOR-A-VAC® Series 1420 Chemical Industion Unit Capital Controls® CHLOR-A-VAC® Series 1420 Chemical Industion Unit

The Series 1420 CHLOR-A-VAC® affords high efficiency addition and mixing of gases and liquid chemicals resulting in substantial chemical cost savings.

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LATEST INSIGHTS ON DRINKING WATER TREATMENT

  • 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. 

  • Where’s The Fire? Industrial Uses For Fire Hydrant Meters
    Where’s The Fire? Industrial Uses For Fire Hydrant Meters

    There are many options for ensuring accurate billing of water used at established industrial customer locations. But how do municipalities or businesses keep track of water availability and use for intermittent applications or movable access points? We spoke with McCrometer, Inc.’s Marc Bennett for insight into how water utilities and industries can efficiently track and allocate water use for billing or internal accounting purposes in such ad hoc applications.

  • Design And Care Of Reverse Osmosis Systems, Part 2: Upstream Equipment
    Design And Care Of Reverse Osmosis Systems, Part 2: Upstream Equipment

    The success of a new reverse osmosis (RO) membrane system is often directly related to its pretreatment. The previous section of this article discussed RO design issues and introduced how a pilot study should include a study of its probable pretreatment equipment since the pretreatment performance will directly affect the performance of the RO system. However, piloting the upstream processes can be challenging in sizing these components for the pilot RO unit’s low flow rate.

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DRINKING WATER TREATMENT VIDEOS

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.

The YSI Pro2030 Handheld Conductivity And DO Meter Video The YSI Pro2030 Handheld Conductivity And DO Meter Video

The YSI Pro2030 DO/conductivity water quality meter is ideal for any field application. The instrument is rugged and extremely simple to use.

Webinar: Optimize Mixed Bed & EDI Systems With Integrated Membrane System Designs Webinar: Optimize Mixed Bed & EDI Systems With Integrated Membrane System Designs

Discover how integrated membrane system designs can maximize the operating stability of EDI systems and reduce mixed bed regeneration frequency.

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.

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.

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.