DRINKING WATER
A Water Quality Specialist used the Hach SL1000 Parallel Portable Analyzer (PPA) to test 6 parameters simultaneously – all within about 8 minutes. Previously, the procedure took 20 minutes just for one parameter. By cutting down the testing time to 8 minutes, the utility saves about 20,000 gallons of water per site during flushing. Read the full case study to see how this utility uses Hach PPA to get accurate results in less than half the time.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
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Mueller Systems: The City Of Clayton Reduces Non-Revenue Water, Improves Customer Service And Operational Efficiency With Hot Rod™Clayton was plagued with exceptionally high non-revenue water rates in the 50 percent range. The city attributed the problem to leaks in its water system (parts of which have been in place the 1920s) that are exasperated by high pressure levels needed to pump water to more than 3200 service connections throughout Clayton’s mountainous terrain located 2200ft above sea level.
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Understanding ISE Measurements In Wastewater Process MonitoringAnalytic measuring technique provides a huge number of procedures to determine the concentrations of substances in an unknown sample, e.g. photometry, titration or mass spectrometry.
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What Four Savvy Operators Know About Mag Meters Saves Time, Money, And HeadachesIf your flow meter is costing you time and money ... and that all adds up to real operational headaches, then you might want to hear what four McCrometer customers who installed the FPI Mag Flow Meter have to say about this problem-solving flow instrument.
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Remote Diagnostics Will Reduce Service Costs And Increase Uptime Of Filtration SystemsFiltration OEMs can use built-in device diagnostics to monitor and maintain automation component performance.
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MVC Evaporator Technology To Treat And Reuse Produced Water From A SAGD FacilityThe SAGD Facility is called "Orion" and consists of 4 major processes: Steam Generation, Injection/Recovery Wells, Deoiling and Water Purification, for recovery of oil. SAGD (Steam Assisted Gravity Drainage) is a technique to recover bitumen from the oil sands formation. By Aquatech International Corporation
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Reactivated Carbon Reduces Municipality’s Water Treatment Costs By 23%With the cost of virgin granular activated carbon (GAC) on the rise, Guilderland Water District sought an alternative source of filtration media. In this case study, you’ll learn why Guilderland converted its plant to reactivated carbon, and as a result, realized 23% cost savings while maintaining water quality requirements set forth by the EPA.
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Endocrine Disrupting Compounds And Their TreatmentEndocrine disrupting compounds (EDC) are a subset of chemicals identified as contaminants of emerging concern, or “CECs.” EDCs are chemicals that can affect the endocrine (hormonal) systems of humans and animals. Hormones regulate reproduction, growth, and behavior. Anything that can potentially disrupt those functions must be studied carefully.
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Project Profile: 750 GPM Iron & Manganese System, Meadow Lake MHC 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.
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New Filter Helps Luxury Hotel Conserve Energy, Water, Chemicals…And Its Four-Star Reputation In a four-star, luxury hotel, there’s no room for discomfort. And behind the scenes – just as with any business – there’s no room for wasted resources, whether it’s water, energy, labor and money. Or all of them put together.
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SuperDisc™ Filtration System Case StudyGlendale Heights Wastewater Treatment Plant discharges treated water to the East Branch of the DuPage River in Illinois.
DRINKING WATER APPLICATION NOTES
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UV Technology Offers Solution For Emerging Water Crisis
Many are turning to UV as an effective barrier to enable the reuse of wastewater, for indirect reuse, and aquifer recharge.
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Improved Efficiencies In TOC Wastewater Analysis For Standard Method 5310B And EPA Method 415
Total Organic Carbon (TOC) measurement is of vital importance to the operation of water treatment due to organic compounds comprising a large group of water pollutants.
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Application Note: Continuous Monitoring Of Drinking Water Provides Assurance Of Safety A water utility in Ohio wanted to learn more about the variability of water quality parameters such as pH, ORP, turbidity, and chlorine. Previously, most of these parameters had been measured by spot sampling protocols with only a few measurements during a daily period. In order to more accurately assess the water variability, the utility used a YSI 6920DW Drinking Water Multiprobe
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Water Distribution System Security Monitoring
Ensuring safe drinking water doesn’t end when the water leaves the water treatment plant. Protecting the safety and security of drinking water from accidental or intentional contamination within the distribution system is becoming increasingly important.
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Removal of Chloramines with Activated Carbon
In order to reduce the formation of harmful disinfection byproducts in drinking water, alternative disinfectant use has become increasingly widespread. Monochloramine is a leading alternative disinfectant that offers advantages for municipal water. This tech brief details the removal of monochloramine using activated carbon.
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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
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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
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Alcoholic Beverage Fusel Alcohol Testing With Static Headspace
A static headspace method was developed using Teledyne Tekmar automated headspace vial samplers to meet the method requirements of the Alcohol and Tobacco Tax and Trade Bureau of the US Department of the Treasury (TTB) method SSD: TM:2001 for testing fusel alcohols in alcoholic beverages.
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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. By Emerson Process Management, Rosemount Analytical
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Ion Exchange Resins Reduce Pollution From Refineries
A single operational oil and gas refinery produces millions of gallons of contaminated wastewater a year, leading to environmental pollution concerns. Ion exchange resins are a metal- and ion-removal solution to help clean this wastewater for plant reuse or safe disposal. This application guide explains how resins can be used to demineralize refinery water in process, boiler, and cooling water applications.
DRINKING WATER PRODUCTS
WEDECO PRO3MIX Bromate Control System
The ozone oxidation of affected drinking water sources with high levels of bromide may lead to bromate formation in the product water. Bromate in drinking water is undesirable as it‘s a suspected human carcinogen. The PRO3MIX bromate control system is an intelligent ozone-based advanced oxidation process (AOP) introduction and reaction system enabling ozone treatment in a compact and intelligent design to mitigate bromate formation even in cases of high level bromide in source water.
Wallace & Tiernan® Analyzers and Controllers
Wallace & Tiernan MFC analyzer/controller offers a broad combination of drinking water analysis and disinfection/chemical control in a single unit.The MFC analyzer/controller offers an easy, software selectable range of control modes from flow proportional, residual control only, compound loop and set point trim enabling precise control of a chlorinator or metering pump to maintain the desired level of disinfection and water quality.
FLUXUS F704 Ultrasonic Flowmeter
With one or two flow channels and versatile electrical inputs and outputs, the FLUXUS F704 can optimally be configured to your application needs, measuring and handling a variety of process parameters.
FPI-X Dual Sensor Electromagnetic Flowmeter
Based on the revolutionary FPI Mag®, the FPI-X dual sensor electromagnetic flow meter is designed to deliver a highly accurate measurement in extreme flow conditions unachievable by other flow measurement technologies. The McCrometer FPI-X provides ± 0.5% accuracy in flow with severe swirl, such as cascading or multiple pump arrays.
biottta™ Biotreatment Packaged Plants
Groundwater is the primary water source for most communities in North America. biottta™ leverages nature to offer an affordable and sustainable solution for wellhead treatment of inorganic and organic contaminants.
N_SIGHT™ Software Suite
You may be surrounded by data, but starved for insights. To go beyond basic meter reading and billing, your utility needs tools that provide a deeper understanding of the data you collect — that turn it into meaningful information for a smart water network.
LATEST INSIGHTS ON DRINKING WATER
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Climbing Higher For A Better View: Keys To Successful Water ManagementMany utilities are moving to a traditional business mindset rather than continuing as largely compliance-driven entities. This is challenging leaders to apply asset management and smart infrastructure strategies, to become more programmatic in managing water, and to consider the big picture in addressing public needs.
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Asbestos Pipe Safety Awareness And ComplianceThe distribution system for water treatment has several hazards especially asbestos cement piping.
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WWEMA Window: Technology Advances Key To Meeting Future Water NeedsWater scarcity is becoming more and more in focus these days as California enters into the fourth consecutive year of a historic drought, and even as torrential rains pelted the bay area recently, the Sierra’s snow pack, which is a key source of water for the region, is far below the seasonal average.
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Will Dow’s Breakthrough Revolutionize Water Treatment?A Q&A with Snehal Desai, global business director for Dow Water & Process Solutions, about the power of RO (reverse osmosis) membrane technology — to provide cleaner water, save precious resources, and improve sustainability.
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Technological Breakthroughs Driving Growth Of Water Quality MonitoringAdvances in technology, including miniature sensors and robotic fish, are leading a rapid advance in online smart monitoring of the quality of water in both municipal and industrial systems across the world.
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The Future Of Fracking: Evaluating Emerging TechnologiesHow can the U.S. and other countries profit from hydraulic fracturing AND protect water resources? New technologies hold the key to environmentally responsible shale-gas production.
DRINKING WATER NEWS
- Water War Carries High Price Tag
- New Approach To Toxic Algae Detection Mimics The Zebra Mussel
- Suspend Water-Protection Rules So Mining Can Thrive, Lawmaker Says
- Pig Farms In NC Harming Waterways
- Flood At Historic Detroit Building Goes Unnoticed, Reports Say
- H2O Innovation's Fast Response To Drought Stricken California Community
- Severn Trent Services Donates Chlorination Systems To Caribbean Island Nation Devastated By Hurricane Gonzalo
- Calgon Carbon Names James Coccagno, Senior Vice President - Asia, Global Procurement & Strategic Initiatives
- LiqTech International, Inc. Receives Pilot Order For A Revolutionary In-Well Situated Ground Water Treatment System
- How To Market Costly Water Meter Projects To Locals
- Prepaid Water Meters: Unfair To Customers?
- Center For Sustainable Shale Development Expands Its Wastewater Treatment Standard, Fulfilling Initial Plans
- USDA Opens Public Comment Period For Agricultural Conservation Easement Program Interim Final Rule
- Legal Petition Urges Gov. Brown To Impose Emergency Fracking Moratorium After Oil Waste Illegally Dumped Into California Aquifers
DRINKING WATER VIDEOS
Video: Mayor Bloomberg Announces Installation Of Automated Water Meter Readers
Introducing EXO - A New, State-Of-The-Art Water Monitoring Platform Video
EXO, a state-of-the art water quality monitoring platform, is designed to address the many challenges of collecting accurate field data in the natural environment.
ABOUT DRINKING WATER
In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA).
Drinking water considerations can be divided into three core areas of concern:
- Source water for a community’s drinking water supply
- Drinking water treatment of source water
- Distribution of treated drinking water to consumers
Drinking Water Sources
Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater.
Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.
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 for contaminant removal and the removal of pathogens 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.
Drinking Water Distribution
Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.
A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.
Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.