dTEC Systems L.L.C. 3012 16th Avenue West Seattle, WA 98119 |
tel: (206) 281-8757 |
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Welcome Page |
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Read about dTEC |
Energy-efficient wastewater treatment process control |
Achieves low-level nitrate/nitrite monitoring |
Overview of our current work |
Collection of reports, publications, and patents |
EnvESI™
Water Monitoring Technology EnvESI™ is a patent-pending technology that offers unique advantages for monitoring chemical contaminants in water in real time. Main applications for this technology lie in chemical testing and on-line monitoring of stormwater discharges (nutrients and metals), wastewater treatment process (nitrate/nitrite/phosphate), and drinking water safety (nutrients/metals/biotoxins). Early EnvESI™ prototypes already showed detection capabilities that exceed the EPA drinking water requirements for nitrate, nitrite, chloride, sulfate, and zinc. Many other pollutants have been detected, including arsenite, arsenate, phosphate, lead, copper, fluoride, ammonium, mercury and others. dTEC Systems continues optimization of EnvESI™ and is seeking commercial partners for its licensing. You can find more information in these summary sheets: EnvESI™ summary short version and longer version. ![]() EnvESI™ prototype for stormwater discharge monitoring ![]() Simultaneous nitrate/nitrite monitoring even at sub-ppm levels ![]() On-line drinking water pollutants monitoring |