Pure Aqua Inc. is a manufacturer and distributor of RO systems and components for industrial and commercial applications, from small skid-mounted systems to large water treatment plants. Products include RO systems, filters, softeners, electrodeionization, UV sterilizers, chemical dosing systems, ozonation systems, chlorination systems and custom-built systems.
Since 1963, Atlantic Ultraviolet Corp. has pioneered the discovery and development of uses of UV energy. It has developed cost-effective and environmentally sound products now known around the world. The company’s application specialists assist in the selection of germicidal lamps and equipment. Their specialized knowledge is a valuable resource in formulating effective, cost-conscious UV solutions.
Dr. Ashok Gadgil received $100,000 Lemelson-MIT Award for Global Innovation for solutions to global water crisis, among other accomplishments
The Lemelson-MIT Program recently announced Dr. Ashok Gadgil as the recipient of the 2012 $100,000 Lemelson-MIT Award for Global Innovation in recognition of his steady pursuit to blend research, invention and humanitarianism for broad social impact.
Gadgil is a chair professor of safe water and sanitation at the University of California, Berkeley, and director of the Environmental Energy Technologies Div. at Lawrence Berkeley National Laboratory, whose diverse inventions and sustainable innovations are helping those in the developing world to live healthier, safer lives.
Researchers found that solar disinfection coupled with lime juice removed harmful bacteria “significantly” faster than solar disinfection alone
A team of researchers from the Johns Hopkins Bloomberg School of Public Health and the Johns Hopkins School of Medicine found that adding lime juice to water that is treated with a solar disinfection method removed detectable levels of harmful bacteria such as E. coli significantly faster than solar disinfection alone.
The results are featured in the April 2012 issue of American Journal of Tropical Medicine and Hygiene.
As the market for ultraviolet (UV) disinfection systems continues to grow, so does the need for more modern, user-friendly controls. UV systems have come a long way from early versions, which had control features that included a lamp-out circuit and an audible alarm. Modern UV systems include system architecture and displays that are reminiscent of the iPod. Most advances for residential UV systems have come in the form of system controllers instead of reactor designs or lamp technology.
Modern controls make systems easier to use and simpler to service
These NSF/ANSI 55 Class A certified products use a proprietary extended cold-spot lamp design along with an active temperature-controlled cold-spot cooling fan, resulting in improved lamp output maintenance during stagnant hot water conditions. The microprocessor-controlled UV power source has audio/visual alarm indicators to validate lamp operation and an annual lamp change timer. The UV display indicates actual dose in millijoules per square centimeter at rated flow.
Cactus UV purification systems are available for residential and light commercial use, and are engineered to reduce bacteria, cysts and most viruses to safe levels. The X-8 model is available for 8-gpm flow and the X-12 model works for 12-gpm flow. Air-cooled lamps and a standard anti-fouling system allow for a wider and more effective temperature range as well as minimized quartz fouling.
DUV Series UV water disinfection systems are designed for commercial applications from 7 to 25 gpm and feature a stainless steel treatment chamber, visual viewport for lamp operational status, heavy-duty ballast power supply and grounded power cord. The optional UV monitor provides a zero to 100% display of UV lamp intensity.
With its patent-pending secondary window and PTFE probe body, this new UV sensor is designed for long field life and ease of servicing. The single-piece primary PTFE probe body is resistant to leaks, and the removable secondary window enables users to service a fould sensor in minutes with no tools required.