DRINKING WATER DISINFECTION
CASE STUDIES AND WHITE PAPERS
Endocrine 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.
UV Disinfection Eliminates Groundwater-Borne Pathogens At Water Utility
A study led by the Marshfield Clinic Research Foundation set out to prove the growing evidence 'that our groundwater is fairly heavily contaminated with human pathogenic viruses.'
UV Disinfection Produces Highly Purified Water In Silicon Valley
With diminished rainfall, a depleted aquifer basin, near-empty recharge ponds, and an earthquake-vulnerable aqueduct system, the Santa Clara Valley Water District (SCVWD) in San Jose, CA, required additional water supplies to maintain regional economic vitality for its growing community.
Filtration Avoidance in Surface Water - North Tahoe, California (Case Study)
With its mountain beauty and deep, clear waters, Lake Tahoe is one of the most popular vacation spots in the California/Nevada area.
The UV Uprising: How UV Disinfection Will Claw Its Way To Prominence
Chlorination in all of its forms — gas, liquid, or solid — has been the primary way for treatment plants to disinfect the treated wastewater. The treatment plants that use gas chlorination must face federal regulatory oversight in the form of a Risk Management Program (RMP). Liquid chlorine plants trade in the regulatory oversight for a more expensive and less effective product. While chlorine in its solid form is good for small treatment facilities known as package plants (named for their mobility). However, ultraviolet (UV) technology is rapidly altering the landscape of disinfection throughout the industry.
On-Site Disinfection Helps Ensure Safety At British Columbia Water Treatment Facility
Constructed in 1997, the District of Chetwynd Water Treatment Plant (British Columbia, Canada) treats nearly 2,500 cubic meters of water per day using gas chlorination as its primary form of drinking water disinfection
Hydro-Guard Advanced Flushing System Simplifies Operations, Increases Water Quality And Saves Treatment Expenses
Birmingham Water Works Board (BWWB), Birmingham, Alabama has consistently achieved the rating of the number five water system in the United States for water quality. BWWB’s potable water distribution system (WDS) serves 600,000 people with a daily average use of 100 million gallons (378 million liters) of water, received from nearby lakes and rivers. The system includes 51 water storage tanks, nearly 4,000 miles (6,437 km) of pipe, over 13,000 fire hydrants and over 200,000 service connections.
All chemical processes involve the loss, gain, or redistribution of electrons on an atom or group of atoms. Electricity is the movement of electrons along a conductor. It is no wonder then that chemical changes can be made to occur by passing an electric current through a solution containing atoms or groups of atoms which will accept or give up electrons. Processes which pass an electrical current through a solution to effect chemical changes are called electrochemical processes. By PEPCON Systems
Treating Trace Contaminants In Drinking Water - Aurora, Colorado (Case Study)
Many waterways contain environmental contaminants resulting from agricultural runoff or industrial/municipal wastewater discharge. Possible environmental contaminants include nitrosamines, pesticides, pharmaceuticals, personal care products or other environmental contaminants. To protect residents from these contaminants, the City of Aurora set stringent water treatment goals, and adopted an advanced treatment process at the Aurora Reservoir Water Purification Facility. Find out what role our TrojanUVPhox™ plays in that process.
The Role Of UV In Solving Next-Generation Water Challenges
The global market for water treatment technologies is growing and becoming increasingly important as the quality and quantity of freshwater sources are stressed and the link between fresh water sources and wastewater — returned to the environment — is more and more obvious. By Rick VanSant, President & CEO, UV Pure Technologies, Inc.
Ozone Disinfection System Provides Treatment In Arizona
Water is disinfected before it enters the distribution system to ensure that dangerous microbial contaminants are killed.
Stormwater Treatment and Reuse - Toronto, Ontario (Case Study)
Sherbourne Common is an innovative waterfront park that provides the public with green recreational space along Lake Ontario in a former industrial area.
Generating Disinfectants From Water: Could In Situ Electrolytic Production Be The Future?
Chemical disinfection using strong oxidants involves the transportation, storage, and handling of unstable and/or aggressive and hazardous chemicals. The production of oxidants at the location where they are to be used has therefore been a preferred option, especially in small-scale or remote installations. On-site electrolysis of NaCl for the local production of chlorine or hypochlorite, or the production of ozone-enriched oxygen by silent discharge has been standard for years. However, it is possible to take the idea of producing chemical disinfectants locally a step further and look at in situ techniques, i.e. at devices, which produce oxidants in and from the water to be treated. By Dr. Samuel Stucki, Scientific Consultant to Innovatec Gerätetechnik GmbH,Germany
Drinking water treatment plants use various forms of chlorine to inactivate pathogens, oxidize metals or metalloids and provide disinfection residual for distribution systems. By Glen Smith, PEPCON Systems
DRINKING WATER DISINFECTION PRODUCTSMore Products
DRINKING WATER DISINFECTION PODCASTSMore Podcasts
DISINFECTION APPLICATION NOTES
DRINKING WATER DISINFECTION VIDEOSMore Videos
DRINKING WATER DISINFECTION NEWS
DRINKING WATER DISINFECTION SUPPLIERS
Lonza Microbial Control produces the new generation Constant Chlor® Plus calcium hypochlorite briquette feed systems that provide increased capacity and accuracy that exceeds its first generation system, plus new capabilities and features that further enhance operation, maintenance and safety.
Calgon Carbon Corporation
Calgon Carbon Corporation (NYSE:CCC), and its European operation Chemviron Carbon, is a global manufacturer and supplier of granular activated carbon, innovative treatment systems, value added technologies and services for optimizing production processes and safely purifying the environment
JCS Industries Inc.
JCS Industries, Inc. was founded in 2002 as a product development company charged with developing an alternative to the current vacuum feed liquid doser technology for a worldwide manufacturer of water and waste treatment equipment. After one year of design and two years of beta testing, JCS developed the Model 4100 Automatic Vacuum Liquid Feeder.
Liqui-Cel® Membrane Contactors are used for degassing liquids. They are most commonly used for O2 removal from water and CO2 removal from water, but they are also capable of controlling a variety of other dissolved gasses as well, such as Nitrogen.
With a history of scientific innovation, MIOX Corporation began manufacturing on-site generators in 1994. Now with more than 1,700 installations in hundreds of U.S. communities and over 30 countries, MIOX is employed in many markets and applications including potable water, wastewater and reuse, commercial swimming pools, on board military and cruise ships, cooling towers, the beverage industry, oil and gas water treatment, and other commercial and industrial applications.
PEPCON Systems PEPCON Systems (PEPCON) designs, manufactures and services equipment that utilizes a proven electrochemical process to safely and economically treat water and control odor in a variety of applications. These systems are marketed under the names ChlorMaster® and OdorMaster® and are available worldwide.
Pinnacle Ozone is the manufacturer and world class integrator of rugged & compact, energy efficient industrial ozone systems. Our Pinnacle systems are used in a diverse array of industrial, commercial and municipal water application areas where treatment requires compact size, system mobility, high efficiency, wide operational pressure, and complex system integration solutions and services.
Severn Trent Services
Severn Trent Services is a leading supplier of water and wastewater treatment solutions. We provide our clients with some of the industry’s brightest minds, advanced technologies, and quality products to provide you with truly efficient, cost-effective solutions to your water and wastewater challenges
TrojanUV specializes in the design, manufacture and sale of pressurized and open-channel ultraviolet (UV) disinfection systems for municipal wastewater, municipal drinking water and environmental contaminant treatment applications. We are proud to have the largest installed base of UV systems in the world and are committed to reducing water stress and maximizing this invaluable resource for current and future generations.
WEDECO -- A Xylem Brand
Using processes that are both future-oriented and ecologically harmless, WEDECO products are committed to improving the foundations on which we live, on a global scale. As a company committed to healthcare, we consider it our duty to create health provisions, especially in the area of water disinfection. The broad outline of our business is to realize the best possible solution for mankind and the environment, and the most economic solution for our clients.
UV Pure Technologies
UV Pure® Technologies develops and manufactures technically advanced UV water purification systems. Since 1998, over 12,000 UV Pure systems have been installed in residential, commercial, industrial, public and municipal applications treating wastewater, reuse water, rainwater, and drinking water. The company’s Crossfire Technology is dramatically advantaged compared to conventional ultraviolet systems. UV Pure Systems are self-cleaning, and smart - with multiple sensors and on-board diagnostics. They are engineered to be fail-safe and virtually maintenance-free. Lamps are mounted in air surrounded by elliptical reflectors providing more effective deactivation of pathogens, incorporating easy lamp changes and visual quartz inspection. Remote monitoring is available.
ABOUT DRINKING WATER DISINFECTION
Water disinfection is the process of removing unwanted chemicals, biological contaminants, suspended solids and gases from contaminated water. It is also the elimination, deactivation or killing of pathogenic microorganisms.
Methods used include physical processes such as filtration, sedimentation, and distillation, biological processes such as slow sand filters or activated sludge, chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light.
Ozonators produce small quantities of ozone which is a strong oxidizing agent that kills pathogens over a short period of time.