The tragic events of September 11th highlighted America’s vulnerability to terrorism and spurred an unprecedented domestic security response. Water treatment facilities were identified almost immediately as a potential target for further attacks and were urged by the FBI to implement security measures, most of which are still in place.
As membrane systems become more prominent in the treatment of well water supplies, more care must be taken to review the effects of microbiological contamination.
As the POU/POE water treatment industry progresses to new levels and meets new challenges, issues regarding regulations and standards continually arise. As the industry waits for the EPA and U.S. government to finalize regulations, the industry is forced to ride out the MCL changes, rule withdrawals and estimated costs that each proposal brings. Listed here is a review of regulation changes the industry has seen in the last year and a brief look at which ones to watch for in the future.
Government Regulations and Safe Drinking Water Act Updates
The Kenosha Water Utility treatment facility, located on the shores of Lake Michigan in Wisconsin, needed to upgrade its two plants to meet the expanding water needs of the community it services. Continuous microfiltration helped meet those needs.
In the last issue, we reviewed ultraviolet (UV) disinfection as a suitable technology for treating biologically unsafe water supplies. In this article, we will focus on system design and understanding the many available options for residential and commercial applications.
Understanding Residential and Commerical UV
The following is some basic information compiled from industry experts at diverse companies. Additional information is available at the contact information provided.
The Basic Types, Materials and Applications for Various Filter Cartridges.
The occurrence of Cryptosporidium parvum and other pathogens in water supplies poses a dangerous problem to the water industry and human health. Read about a new technology that is helping rid of this problem.
While temperature is acknowledged to be an important factor in water treatment, remarkably little study has been made of the adverse influence of low temperatures on physical treatment process effectiveness. An early study concluded that "there is no preventative or retarding effect on alum floc formation with low raw water temperatures."
Part 4: Microbiologically-Mediated Deterioration in Surface Water Supplies