There are obvious differences between point-of-use (POU) and point-of-entry (POE) water treatment products. For example, POE treats water for the whole house, or a majority of the house, while POU treats water for a single tap or multiple taps, but not a majority of the house. For POE systems, pressure drop is a major concern because most of the household plumbing is downstream of the system.
Examining the differences between POU and POE systems in the NSF/ANSI DWTU Standards
POE arsenic removal program provides testing, support and residuals removal in addition to treatment system
Decentralized treatment helps small communities comply with arsenic rule and prepare for future regulations
NSF/EPA project delivers cost-effective solutions to meet new arsenic MCL in Grimes, Calif.
According to Global Water Intelligence, an English publication, worldwide annual industry revenues are estimated at $420 billion, with the U.S. accounting for around $100 billion. This number is expected to grow as water becomes scarcer, and markets begin to mature. Two of the fastest growing segments are point of use/point of entry (POU/POE) systems and wastewater treatment.
Commercial POU installations improve drinking water quality in Grimes, Calif.
Until recently, using membranes for whole-house residential clarification and disinfection had not been an option for water treatment dealers. Technical advances made by Zenon Environmental in hollow fiber membrane technology for its large-scale municipal and industrial plants have changed this. Membranes are now being used in the company’s Homespring point-of-entry (POE) systems, providing a cost- effective solution for the removal of turbidity and pathogens, and delivering clear, biologically safe water.
Field applications of Homespring ultrafiltration units
Long-term cost benefits of the point-of-use program for communities to comply with the arsenic rule
Water Quality Products asked Frank DeSilva, national sales manager for ResinTech, Inc. to share his thoughts on the potential market the new arsenic rule may create for POU/POE dealers.
The new arsenic rule takes effect on Jan. 23, 2006. The U.S. Environmental Protection Agency (EPA) has set the new arsenic limit to 10 parts per billion (ppb), down from the previous limit of 50 ppb. Municipal water utilities are the major water treatment facilities that are faced with these changes. All purveyors of drinking water are affected, including public and private systems.
Joint NSF/EPA study analyzes the feasibility of an economically sustainable POU/POE decentralized public water system