DRINKING WATER TREATMENT

What’s In Your Water?
What’s In Your Water?

When is the last time you took a moment to stop, and smell your water? A continuous supply of clean and safe drinking water is something that most people take for granted. We rarely go to the tap doubting that the water will be clean and safe. Recently, the general population and water supply professionals have become concerned about the safety and protection of our drinking water supplies.

DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS

  • Case Study: Improving RO Performance
    Case Study: Improving RO Performance The client's reverse osmosis system utilized coagulants, antiscalants and cleaners to produce high quality water. With the current chemicals, the reverse osmosis system was cleaned every 90 days due to scaling or deposits.
  • A Legacy Of Clean Water
    A Legacy Of Clean Water

    Helping to maintain clean water is part of the Whalen family history, a story that begins in the mid-1990s with a father’s fervent belief that his research could make a difference and his son’s intense desire to ensure it did.

  • Membrane Treatment Of Groundwater
    Membrane Treatment Of Groundwater

    The groundwater that a southern Louisiana water utility supplies to local residents has traditionally carried a high amount of organic material and color. In the past, the organics were oxidized and broken down by chlorination, but this practice had gone out of favor due to production of disinfection by-products (DBPs) such as Trihalomethanes (THMs) and Haloacidic Acids (HAAs).

  • Ultrafiltration And Reverse Osmosis Testing On Tertiary Effluent From The North City Water Reclamation Plant
    Ultrafiltration And Reverse Osmosis Testing On Tertiary Effluent From The North City Water Reclamation Plant

    Ultrafiltration (UF) membranes have already gained worldwide acceptance in the treatment of drinking water for their removal of chlorine resistant pathogens such as cryptosporidium.

  • An Energy System For Power Generation Relies On Quality Monitoring Instruments From Siemens
    An Energy System For Power Generation Relies On Quality Monitoring Instruments From Siemens

    A U.S. company develops energy technologies that are environmentally sustainable and provides their customers with the ability to use their energy sources in a more practical and cost-effective manner.

  • 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.

  • White Paper: Membranes Deserve Multi-Stage Protection
    White Paper: Membranes Deserve Multi-Stage Protection

    Membranes are extraordinarily effective at water purification at the sub-micron level – which is exactly why they need to be protected from particulate contamination. Membranes last longer, operate more productively, and require fewer cleaning cycles when they are shielded from the silt, sand, fibrous material, algae, bacteria, mollusk larvae, scale, and the other contaminants that can cripple millions of dollars’ worth of membranes in weeks or even days. Multi-stage filtration can be both efficient and cost-effective in protecting membranes

  • Case Study: Leveraging Data To Optimize Operations And Manage Budgetary Pressure
    Case Study: Leveraging Data To Optimize Operations And Manage Budgetary Pressure Budgetary pressure on water utilities continues to grow due to factors such as new infrastructure demands, increasing regulatory compliance requirements, and the scarcity or declining quality of source water. By Gabi Miles, Hach Company
  • Encore® 700 Chemical Metering Pumps Provide SNWA With A Decade Of Flawless Service At River Mountains
    Encore® 700 Chemical Metering Pumps Provide SNWA With A Decade Of Flawless Service At River Mountains

    Built in 2002, Southern Nevada Water Authority’s (SNWA) River Mountains Water Treatment Facility is a state-of-the art  water treatment facility that delivers 300 million gallons per day and was designed to be expanded to deliver up to 600 million gallons per day of treated water in the future.

  • 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.

More Drinking Water Treatment Case Studies and White Papers

DRINKING WATER TREATMENT APPLICATION NOTES

More Drinking Water Treatment Application Notes

DRINKING WATER TREATMENT PRODUCTS

MC4-400 High Capacity Calcium Hypochlorite Disinfection System MC4-400 High Capacity Calcium Hypochlorite Disinfection System
Arch Chemicals, Inc., a Lonza company produces the new generation Constant Chlor® Plus calcium hypochlorite briquette feed systems for disinfection.
Instrumentation: OPTIFLUX 5000 Electromagnetic Flow Sensor Instrumentation: OPTIFLUX 5000 Electromagnetic Flow Sensor

The electromagnetic flow sensor OPTIFLUX 5000 is considered to be the most accurate and hard-wearing, robust flowmeter available in the market today.

Field Transmitter Field Transmitter

SITRANS TF is used where other transmitters can't cope. One main point is its rating of IP67.

Capital Controls® GS4000 Chlorine Dioxide Generator Capital Controls® GS4000 Chlorine Dioxide Generator

The generator produces a chlorine dioxide solution, which can be dosed according to the specific process requirement. The system is able to produce a chlorine dioxide solution always on demand.

Ultrafiltration Membrane System Ultrafiltration Membrane System

WesTech ultrafiltration offers a unique solution to exceed increasingly stringent water quality standards. Membranes with a small nominal pore size (0.01-0.02 μm) provide an absolute barrier to consistently produce high-quality water by removing microbial and viral pathogens, suspended solids, turbidity, precipitated iron and manganese, and coagulated organic matter.

Valve Positioners: Precise And Intelligent Valve Positioners: Precise And Intelligent

For more than 30 years, Siemens valve positioners have provided safe, uninterrupted performance for process industries worldwide. Our valve positioners control a broad range of pneumatic actuated rotary and linear valves and specialty tasks like damper drives with absolute reliability. Siemens positioners meet changing market needs and expectations.

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LATEST INSIGHTS ON DRINKING WATER TREATMENT

  • Meet The New Lead And Copper Rule
    Meet The New Lead And Copper Rule

    As the U.S. EPA’s Lead and Copper Rule turns 25 years old, the country has become inundated with contamination crises. A much-needed update to the regulation may put an end to that.

  • DNA Sequencing: The Future Of Water And Wastewater Analysis?
    DNA Sequencing: The Future Of Water And Wastewater Analysis?

    DNA sequencing can provide more information on water and wastewater than traditional methods. Is it time for treatment operations to adopt the method?

  • Finding Your Next Chemical Metering Pump
    Finding Your Next Chemical Metering Pump

    There are plenty of bells and whistles at a given water treatment plant. Between pumps, mixers, dry chemical feeders, and other chemical handling equipment, it can be easy to go with the status quo when it comes time to upgrade certain pieces of equipment. For an operation’s chemical metering pumps, this usually meant replacing one unit with its exact replica, instead of facing the often arduous task of researching a better option.

  • Helping Small Systems Take A Big Stand Against PFCs
    Helping Small Systems Take A Big Stand Against PFCs

    The U.S. EPA lends advice on how small systems can combat increasingly troublesome PFC contamination.

  • The Six Most Common AMI Questions Answered
    The Six Most Common AMI Questions Answered

    Advanced Metering Infrastructure (AMI) has been available for some time, but the majority of water utilities still don’t utilize it. There are varying obstacles that keep more from embracing the technology, from cost prohibitions to lack of expertise. Increasingly, ways around these obstacles are emerging.

  • The True Cost Of Custody Transfer Mismeasurement
    The True Cost Of Custody Transfer Mismeasurement

    In the oil and gas industry, operations are only as good as what they can measure. When it’s time to move product from one place to another, accurate custody transfer measurement is paramount. Without a precise account of what’s been delivered, operations cannot accurately charge for their services and this can have major financial implications.

More Drinking Water Treatment Insights

DRINKING WATER TREATMENT VIDEOS

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.

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.

Kupferle Foundry - #9800i-GENESIS Turbine Powered Automatic Flushing Device With Chlorine Analyzer

The Eclipse i-Series model #9800i-GENESIS is the newest Intelligent Flushing & Monitoring Station Kupferle offers to maintain safe residual levels and remove DBPs from consumers' water. This permanently installed station incorporates a built-in chlorine analyzer to measure and record disinfectant residual levels based on a programmed sampling schedule.

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.

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.

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.