DRINKING WATER TREATMENT
The shoreline of the Red Sea is a dazzling destination for tourists and locals to experience the beach and enjoy marine activities. In Egypt, the shoreline sprawls from the Suez Canal in the north, down to the southern part of the country bordering Sudan.
DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS
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.
City Solves Reliability And Maintenance Problems For WTP Hypo Feeds
A municipal water quality manager reports replacement of sodium hypochlorite (hypo) vacuum feeder units with a more advanced type at one water treatment plant (WTP) has helped allow for continued reliability for chlorination.
Ozone Makes A Comeback
Ozone has been a proven effective method of water treatment and disinfection for well over a century.
Dissolved Air Flotation Pretreatment Washes Away Waco’s Foul T&O Problem
During the hot and dusty summers just a few years ago, many thirsty residents of Waco, TX, were reluctant to slake their thirst with the city’s water.
Project Profile: Ohio Willow Wood, Mount Sterling, Ohio, 30 GPM Arsenic, Iron & Manganese System In the winter of 2006 AdEdge Technologies, Inc. was pre-selected to as the treatment vendor to provide a system for arsenic, iron and manganese removal at the Ohio Willow Wood Facility in Mount Sterling, Ohio. By Adedge Technologies Inc.
A Rosemount Chlorine Analyzer Proves Just The Job For Seawater Duty At Dow's Terneuzen Site
The Dow Benelux site in Terneuzen, the Netherlands, uses seawater for process cooling. Environmental regulations require careful control of the concentration of chlorine added to control microbial fouling. The existing chlorine measurement system had become outdated, so after stringent tests Dow decided to replace it with a Rosemount Analytical Model TCL analyzer from Emerson Process Management. By Emerson Process Management, Rosemount Analytical
White Paper: Recycling And Reuse Of Desalinated Seawater This paper presents the technology that is capable of treating wastewater, discusses how this technology is suitable for the challenges presented by wastewater treatment, presents examples of what can be expected as water quality, and presents the results of a plant handling wastewater.
How To Best Reduce DBPs: A Comparison Of Centralized And Decentralized Treatment
Air stripping and granulated activated carbon were applied at different points in the distribution system to evaluate effective removal of disinfection byproducts (DBPs). By Chandra Mysore, Ph.D., James Fletcher, Bill Roberts, and Mark Xerxis, GHD Inc.
High Recovery Reverse Osmosis Water Treatment For Industrial, Agricultural, And Municipal Applications
Industry accounts for nearly 60 percent of fresh water withdrawals in the developed world and agriculture consumes 70 percent of fresh water supplies globally, according to UNESCO.
Ashley Valley Water & Sewer Improvement District Relies On FPI Mag Flow Meter To Comply With Allocation Quota
Ashley Valley Water & Sewer Improvement District (AVWSID) serves rural county residents who live outside the city of Vernal, Utah.
DRINKING WATER TREATMENT APPLICATION NOTES
Disinfection: 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
Network Monitors Water Quality In Shale Gas Drilling Region High-pressure injection of water, sand, and chemicals that fracture shale deposits deep underground to free trapped natural gas is employed by drillers tapping the Marcellus shale beds, a geologic deposit that stretches from central New York to Virginia and contains gas believed to be worth hundreds of billions of dollars. By YSI
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.
Bottled Water Industry: Liquid Analytical Solutions
Americans consume more than 9.1 billion gallons of bottled water annually - an average of twentynine gallons per person every year.
Preliminary Assessment Of Water Quality In Riviera Grise Near Port-Au-Prince, Haiti
The Riviera Grise drains water from the Cul-de-Sac watershed, Haiti, which covers most of the rural areas along the flood plains and areas that extend into steep hillsides. It also covers urban areas of Port-Au-Prince, the capital city of Haiti.
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.
Removal Of DBPs 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.
Water Distribution System Wireless Monitoring Application Note
Providing water distribution monitoring solutions since 1987, Telog continues to offer the industry’s leading remote data acquisition system including the most comprehensive family of battery powered, environmentally rugged wireless monitors available from any single supplier.
Application Note: 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
Activated Carbon And Adsorption Of Trichloroethylene (TCE) And Tetrachloroethylene (PCE)
Trichloroethylene (TCE) and Tetrachloroethylene (PCE) are two of the most common solvents that contaminate groundwater supplies in the United States. Both solvents see frequent use in the extraction of fat, in the textile industry, in the production of various pharmaceutical and chemical products. TCE is also used as a degreaser from fabricated metal parts, and PCE serves as a component of aerosol dry-cleaning solvents.
DRINKING WATER TREATMENT PRODUCTSMore Drinking Water Treatment Products
LATEST INSIGHTS ON DRINKING WATER TREATMENT
Small UV Plant Is Designed To Address Cultural And Safe Drinking Water Needs Cost-Effectively
BI Pure Water worked with University of British Columbia researchers and Lytton First Nation to develop a water disinfection system that addresses the needs of native communities, both cultural values as well as the basic necessity of clean drinking water.
Is Your Utility Taking Advantage Of Data Analytics?
Utilities worldwide are addressing limited resources and operational challenges by deploying and connecting smart technologies through a single communication network.
Understanding Salt Solubility Reaps Benefits In RO System Performance
No matter where it originates, the feed water to downstream reverse osmosis (RO) and nanofiltration (NF) membranes contains some level of dissolved salts.
The Deadliest Contaminant: Solving The Brain-Eating Amoeba
As Halloween approaches and our TV screens fill with frights of all kinds, water managers have a real-life monster to worry about — a parasite (Naegleria fowleri) that’s been dubbed the “brain-eating amoeba.”
Ion Exchange: A Viable Water Treatment Alternative To Membranes
Five decades ago, ion exchange using charged resins was one of two processes used in the water industry for water treatment.
Do-It-Yourself Cryptosporidium Detection
Learn how to construct a simple and inexpensive tool for detecting cryptosporidium in your watershed — and why it’s important.
DRINKING WATER TREATMENT NEWS
DRINKING WATER TREATMENT VIDEOSMore 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.