Month: September 2022

ESTIMATES OF $3-5 TRILLION have been made for replacing the aging US water infrastructure. Clearly, this is unlikely to happen. As urbanization trends increase and more people live in cities, and as all the problems with chlorination byproducts emerge, point-of-use water purification systems in homes or small communities start to make sense. http://cei.org/sites/default/files/Bonner%2520Cohen%2520-%2520Fixing%2520America's%2520Water%2520Infrastructure.pdf View in LinkedIn

CASE AGAINST INVESTMENT. "It does not make commercial sense to invest billions in additional reservoirs and water catchment, treatment plants [and] pumping stations, when as much as 60% of water produced is unaccounted for," says Dale Hartley, director of business development at SebaKMT, a water leak detection specialist." http://lnkd.in/dyFamKB View in LinkedIn

SMART TECHNOLOGY. "New monitoring technologies help companies to ensure the integrity of their vast water supply networks. Electronic instruments, such as pressure and acoustic sensors, connected wirelessly in real time to centralised and cloud-based monitoring systems will allow companies to detect and pinpoint leaks much quicker." http://lnkd.in/dyFamKB View in LinkedIn

INTELLIGENT IRRIGATION. "Approximately 70% of the world's freshwater is used by the agricultural industry. Applying a more intelligent approach to water management by deploying precision irrigation systems and computer algorithms and modelling is already beginning to bring benefits to farmers in developed countries." http://lnkd.in/dyFamKB View in LinkedIn

AGING WATER DISTRIBUTION INFRASTRUCTURE contributes to the problems of centralized water distribution. Urbanization has needed a vast infrastructure of piping between the water treatment plant and the domestic tap, with an inevitable diminishing chlorine concentration gradient, and lots of niches to harbor resistant pathogens. Point-of-use (POU) and point-of-entry (POE) sterilization at destination is worthy of consideration. View in LinkedIn

PVC WATER PIPING. "Of all the plastics, PVC plastic or vinyl can be considered the most problematic. Because PVC on its own is almost useless as a plastic, numerous additives are used to make a wide variety of products. Some of these additives are plasticizers to make it soft and pliable, heavy metals as stabilizers or to give it color, and fungicides to stop fungi from eating the other additives." Many are toxic. http://www.zerowasteamerica.org/watertreatment.htm View in LinkedIn

POU WATER SYSTEMS. "Portable water purification devices – better described as point-of-use (POU) water treatment systems and field water disinfection techniques – are self-contained units that can be used by recreational enthusiasts, military personnel, survivalists, and others who must obtain drinking water from untreated sources." Does this have a future in our private homes? http://lnkd.in/dTFBJ6P View in LinkedIn

POU AND HOSPITAL WATER INFECTIONS. "Infections with Pseudomonas aeruginosa and other waterborne pathogens (WBPs) are major contributors to serious morbidity and mortality in hospitals ... point-of-use (POU) water filtration might result in decreased risk of infection in the subacute care unit." http://lnkd.in/d9uXpFb View in LinkedIn

POOR COUNTRIES cannot afford complex water purification systems. Point-of-use UV purification has been shown to significantly reduce severe diarrheal diseases in children. In Chiapas Mexico, only 31% of water is fit for human consumption. UV kits are highly effective (99-100%) at eliminating parasites, bacteria and viruses, but in field use they were less effective. http://lnkd.in/dWFacSa View in LinkedIn

"POINT-OF-USE DEVICES (such as under-the-sink activated-carbon and/or membrane filters or ultraviolet (UV)-light disinfection units) and bottled water are likely to become increasingly popular. However, bottled water and point-of-use devices in California — as currently produced, regulated and marketed — are not reliable alternatives to the available public water supply." http://lnkd.in/dssgvHd View in LinkedIn