DRINKING WATER TREATMENT
With water shortages and energy costs increasing worldwide, brewers are turning to state-of-the-art technologies to access water and use it more conservatively.
DRINKING WATER TREATMENT CASE STUDIES AND WHITE PAPERS
Case Study: Newport News Uses Emerson Ozone Instrumentation For Safe, Effective Disinfection
Maintaining the quality of the water supply is the top priority for municipal drinking water treatment plants across the country. Water plants use several treatment processes to ensure water quality and safety, and these treatment steps include disinfection. Traditionally, chlorine is used in both primary and secondary disinfection treatments and has been used since 1908. Some water plants are moving to ozone for primary disinfection. One water utility that is taking this direction is Newport News Waterworks.
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.
Continuous Phosphate Monitoring Improves Reliability
When municipalities choose to manually feed phosphates into their potable water, this often creates an over-feed of chemicals. Learn how employing an automatic-dosing phosphate analyzer can reduce operating costs and improve reliability.
Instrumentation For Produced Water Applications
Produced water refers to any water brought up to the surface during oil and gas production, typically as the result of drilling, exploration and hydraulic fracturing. By Steven Smith, Product Business Manager – Analytical, Endress+Hauser
Hydro-Guard® Improves Water Quality And Saves Man-Hours For Central Texas Vacation Community
The user population of the Horseshoe Bay Water Distribution System does not reach its peak until summer and the resultant levels of peak and low usage vary widely.
Ultrapure Boiler Water Production From Municipal Wastewater
The term wastewater can be applied to a wide range of water sources from municipal sewage to storm runoff to industrial discharge water. By Michael Sheedy, Vice President of Technology and George Di Falco, Marketing Communications, Eco-Tec Inc.
A New Way To Desalinate — Government Tested, Real-World Approved
Developed by the Department of Defense, capacitive deionization (CDI) removes salt from water, while conventional methods remove water from salt. By Patrick Curran, CEO and founder, Atlantis Technologies
Sensor Technology For Control Of Activated Sludge Aeration
Design routines and operation strategies for activated sludge aeration systems have traditionally been based on manual control. By Robert Smith, P.E., BCEE, Ph.D., YSI
The Important Role Of Ultrasonic Flowmeters In Biogas Production
As interest in biogas grows, more attention is being paid to measuring biogas flow, which has long been a problem area in process measuring technology. By Dick Laan, Ultrasonic Flow Product Manager, and Rick Lowrie, Water & Wastewater Industry Manager, KROHNE, Inc.
The Basics Of Disinfection
From utility water to wastewater, whether used in industrial processes or for drinking, disinfection plays a prominent role in providing safe and useable water. Water free from pathogens and other microorganisms ensures processes run efficiently and people are kept safe from disease. By Harland R Pond, Business Development Manager – Water Treatment
DRINKING WATER TREATMENT APPLICATION NOTES
Application Note: Busseron Creek Watershed Partnership Addresses Concerns In A Rural Watershed As with other watershed organizations, the Busseron Creek Watershed Partnership (BCWP) exists because of surface water quality degradation. In this case, those waters drain 163,231 acres of a watershed that crosses the boundaries of Vigo, Clay, Green, and Sullivan counties in West- Central Indiana. By YSI
Bottled Water Industry: Liquid Analytical Solutions
Americans consume more than 9.1 billion gallons of bottled water annually - an average of twenty nine gallons per person every year.
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
Non-Contact Radar Level Meter Improves Reactor Vessel Measurement
A North Carolina-based specialty chemical manufacturer, a major producer of insect repellent, was looking for a better way to measure the liquid level in its glass-lined agitated reactor. The company uses a number of complex technologies to manufacture sebacates, adipates, isophthalates, catalysts, alkyds, and other natural and renewable chemistries based on castor and citrates.
The Basics: Testing RO Quality
Osmosis is the phenomenon of lower dissolved solids in water passing through a semi-permeable membrane into higher dissolved solids water until a near equilibrium is reached.
Technical Note: Using Liqui-Cel® Membrane Contactors To Solve Resistivity Problems In A High Purity Water Loop Pureflow, Inc. is a Southeastern-based expert in designing complete water treatment systems as well as providing value-added solutions for fixing operational issues in existing systems. Pureflow teamed up with Membrana to help solve an operational issue at one of their customer’s facilities. By Membrana
Application Note: YSI 600 Optical Monitoring System Used To Protect Lake Oconee, Georgia Water Quality Northern Georgia is experiencing unprecedented development; consequently, water quality in many of its watersheds is in jeopardy of severe degradation. The State of Georgia, Environmental Protection Division (EPD) has implemented an NPDES monitoring and enforcement program designed to prevent construction activities from impacting water quality
Monitoring Aromatic Organics For Optimizing Coagulation
With the increasing awareness about the negative effects of organics within the water and wastewater treatment process along with increasingly strict water quality regulations, the need for more effective organics removal is becoming more important.
Determination Of EN15662:2008 - Determination Of Pesticide Residue In Food Of Plant Origin, By An Automated QuEChERS Solution
Pesticide residue laboratories are required to undertake analyses of an ever increasing number of samples. The analyses typically involve use of multi-residue methods (both GC-MS and LC-MS) to test for over 500 pesticide residues.
Application Note: YSI Water Quality Monitoring Buoys Help Connecticut DOT Protect The Housatonic River When replacement of the Sikorski Bridge spanning the Housatonic River was authorized, Paul Corrente and the Connecticut Department of Transportation (CT-DOT) set about the design and development of a water quality monitoring program to monitor the contractor’s in-water activities to insure full protection of the river from perturbation
DRINKING WATER TREATMENT PRODUCTSMore Drinking Water Treatment Products
LATEST INSIGHTS ON DRINKING WATER TREATMENT
10 Tips For Accurate Disinfection
Disinfection can rightly be called the “ultimate” stage of drinking water treatment — typically occurring at the end of the process, and acting as a final step before water is sent out of the plant, through the pipes, and into the world. It may come last, but it’s certainly not least.
Desalination Innovation In The UAE
A delegation of prominent UAE government and private sector representatives, organized by Masdar, will be attending the 7th World Water Forum in Daegu and Gyeongbuk, South Korea, from April 12 to 17. The delegation will showcase the country’s adoption of innovative technologies as a means to ensure a water secure future and address the inter-connected challenges of the energy-water nexus with the global community.
New Frontiers In Desalination
As persistent, widespread drought dominates headlines and decimates farmland, a competition held this month by the U.S. Agency for International Development (USAID) turns to innovative desalination technologies for answers.
A Roundup Of Energy, Water, And Climate Bills In The 84th Texas Legislative Session
We’ve almost made it to the midway point of the 84th Session of the Texas Legislature. As many already know, the Texas Legislature only meets from January to May every other year, so a lot has to get done in these few months.
Understanding The Dynamics Of Reverse Osmosis: Fluctuations In Flow, Rejection, And Pressure
What you don’t know about your reverse osmosis membrane feedwater may surprise you — and hurt your system’s performance.
10 Must-See Membrane Technologies
A collection of innovative membrane technologies found at the AWWA/AMTA Membrane Technology Conference & Exposition
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.