Cucamonga Valley Water District (CVWD) serves a 47‐square‐mile area with about 45,000 water connections and 35,000 sewer connections and an average daily demand of approximately 50 million gallons.
Transporting pure salt - the raw material needed to generate sodium hypochlorite onsite – is more cost effective, stable, and safer, than transporting and storing bulk sodium hypochlorite, or gaseous/liquid chlorine cylinders from local chemical suppliers. The conversion to on-site hypochlorite generation can be achieved by adhering to these design guidelines.
A chemical company which specializes in Clean-In-Place (CIP) systems, contacted Mazzei to discuss the use of ozone as an alternative to peracetic acid sanitation or heat sterilization at their customers’ plants.
Recently, cyanobacteria and cyanotoxins have become a high profile drinking water quality concern in both the United States and abroad. The combination of weather conditions, agricultural phosphate runoff, and other factors has produced water conditions that have favored the formation of cyanobacteria in surface water supplies.
The objective of the pilot study was to demonstrate “proof of concept” if coagulation followed by filtration was a viable technology to remove arsenic in water from Well No. 6 when raw water arsenic levels are so high, >70 ppb. Preparations were made to reduce the pH of the raw water if it was required. Also, two unique arsenic adsorptive medias were evaluated as a final polishing step to the effluent of the coagulation/filtration process.
When the City of Midlothian, Texas, was ready to expand their water treatment plant to accommodate a growing population, they carefully considered and investigated their water disinfection options.
The Lariana Depur wastewater treatment plant in Fino Mornasco, Italy, treats wastewater from multiple textile manufacturers in the Como region, known as the heart of the textile industry. Since 1994, ozone has been used effectively as a polisher to remove the dark blue-purple color — the result of the dyes used in the textile dyeing and printing process — from the water.
In 2000, Indiana American Water, a subsidiary of American Water Company, purchased the Warsaw Indiana system which serves a population of over 16,000. Indiana American then completed a Comprehensive Planning Study that included a number of upgrades and improvements to enhance the reliability, safety and water quality of the system.
The desert community of Scottsdale, Arizona had no natural surface water sources and a decreasing groundwater supply. Scottsdale had historically treated and disposed of its wastewater.
Micropollutants in our wastewater are a growing problem and so is the concern for the long-term hazard to the ecosystem.
Loprest has been designing and fabricating manganese removal systems using manganese greensand for over forty years. Drawing on that experience; filtration rates, run times, backwash procedures, chemical dosage rates, etc. are all established by theoretical calculations and history. Therefore, Loprest’s goal in this pilot study was to conduct uninterrupted operation per bid testing procedures and document the results.
Favorable reviews of UV technology in wastewater applications influenced Tianjin Economic Development Area (TEDA) Water Supply General Company to investigate the potential of using UV for drinking water applications at one of its water treatment plants. With no previous UV installations for drinking water disinfection in the country, TEDA's process of selecting a UV manufacturer was stringent. We are honored that they chose us and our TrojanUVSwift™ system.
The city of Buhl, Idaho, obtains all of its drinking water from groundwater sources through multiple wells. Prior to 2009, the city did not treat the groundwater but only added chlorine in the form of bulk 12.5% sodium hypochlorite to provide a disinfectant residual. A combination of factors including: changes in EPA and state DEQ regulatory requirements, growth of the residential population and growth of the industrial food processing customers forced the City to build a new water treatment plant to provide filtration to address the naturally occurring arsenic present in the groundwater.
Phoenix is one of the country’s fastest growing metropolitan areas and has one of the most arid desert climates. Population growth coupled with increasingly stringent water regulations pushed the city to proactively address future water supply concerns. The decision was made to build the Lake Pleasant Water Treatment Plant (WTP) and include oxidation and disinfection treatment barriers.
The MIOX RIO Zuni is a compact, easy to install and operate on-site chemical generator designed for minimal maintenance and ultimate simplicity. Similar to the thousands of larger MIOX installations around the world, this small-scale chemical generator can be retrofitted into existing infrastructures. Just load with salt and let the RIO Zuni do the dirty work for you!
Capital Controls Series WM4000 gas feeders are wall cabinet mounted vacuum operated and designed to conveniently house a combination of gas feed equipment. The fibreglass cabinets enclose the gas flow control components.
The latest generation of brine electrochlorination technology, the ClorTec DN range, offers simple operation and maintenance as well as unrivalled safety advantages.
The Leopold Trough-Guard media baffle is a stainless steel assembly that is fastened onto both sides of wash-water troughs to help prevent significant media loss during concurrent air/water filter backwash.
Over 70% of the Earth’s surface is covered with water, about 60% of water makes up a human being. One single person consumes more than 30,000 gallons of fresh water a year on average.
In the battle with hard-to-treat contaminants, drinking water just got a powerful new ally. Leopold Oxelia™ oxidation-enhanced biologically active filtration system.
Every water treatment challenge is a little different. Many companies have a variety of technologies that can be applied to meet the demands of their water utility customers. One such company would be SUEZ. Water Talk recently sat down with Adriano Vieira, Director of R&D with the SUEZ IDEAS Center, to learn more about the unique approach the Company’s North American arm is taking to innovation.
Jim Jackson, National Sales Manager for Mazzei, discusses a San Angelo, TX project removing radium and iron from a radioactive water source to solve the city’s water scarcity problem.
Daryl Weatherup, Director of Marketing for Evoqua’s Wallace & Tiernan brand, recently sat down with Water Online Radio to discuss disinfection management, residuals, dosing, disinfection byproducts (DBPs), chlorination and the latest technological advancements being announced at ACE16, including Evoqua’s acquisition of UV disinfection provider Neptune Benson.
Jim Knepper, Vice President of Sales for Jacobi Carbons, discusses the growth of the Company and the advantages of coconut shell activated carbon in complying with the EPA’s disinfection byproduct phase II ruling.
Vitamins, steroids and hormones are all emerging as contaminants being detected in drinking water supplies. As Jon McClean, Chief Technology Officer with Neptune Benson explains in this Water Online Radio interview, advanced oxidation processes (AOPs) add hydrogen peroxide in front of UV treatment to eradicate contamination.
Over the past two years, no groundwater issue has perhaps received as much community focus and attention as polyfluoroalkyl and perfluoroalkyl substances like PFOA and PFOS, often referred to as perflourinated compounds (PFCs). The U.S. EPA issued a health advisory, limiting the amount of these compounds to 70 parts/trillion which kicked off a nationwide evaluation of local water sources.
MIOX representative Mario Afanador from USA Global Market interviews engineer Carlos Rincon from the Wiesner Water Treatment Plant, where their large MIOX RIO Grande system is safely, cost-effectively disinfecting drinking water for the citizens of Bogota, Colombia.
Ozone is used widely for water treatment in Europe and Asia. Now, with more than 40 years of global experience, De Nora is bringing CAPITAL CONTROLS Ozone to North America.
A powerful oxidant with fast reaction time, no added chemicals, and reduced disinfection byproducts, Ozone is an appealing and growing option for water and wastewater treatment. Watch the full video to learn more.
RWL Water and Emefcy have merged to create Fluence Corporation, bringing together breakthrough, energy-saving technologies and proven delivery platforms that optimize treatment solutions for the complete water cycle. Fluence products address all segments of the water value chain, including desalination, reuse, wastewater treatment, freshwater treatment, and waste-to-energy — making it one of the world’s most comprehensive distributed water services firms. Visit us at WEFTEC booth #7135.
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 (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. 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.
3M 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.
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.
De Nora Water Technologies 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.
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 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.
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.
