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Water for Sterilizing Medical Devices Water for sterilization has a new requirement and standard. This applies to surgical tools and instruments, and is useful to feed steam sterilizers and autoclaves. New Standard AAMI calls the new standard for water for sterilizing medical devices “Water for the Processing of Reusable Medical Devices”. This is technically AAMI … Read more
SnowPure exhibiting at Aquatech Mexico 2022! Finally! Visit us at USA Pavilion Stand 2221 Aquatech Mexico will be September 6-7-8, 2022. The 2022 show will be held in Centro Citibanamex, Mexico City. SnowPure Water Technologies is in the prime position in the USA Pavilion at the upcoming 2022 Aquatech Mexico Exhibition in Mexico City. Please stop by … Read more
Mechanism of Silica Removal in Electrodeionization (3-Zone EDI Model) Michael J Snow, Ph.D. May 2006 Keywords: Electrodeionization, EDl, CEDI, Water, Pure, Ultrapure, Silica, SiO2, Silicic acid, H4SiO4, Reactive; Non-reactive; Colloidal; Reverse Osmosis; lon-Exchange; Resin; Anion; Cation; Fouling; Rejection; Process design; Membrane; Zones; Electropure; SnowPure ABSTRACT: Electrodeionization (EDI) is a continuous separation process that uses a … Read more
USP concurs: SnowPure’s experience says that heat sanitization should be between 72-80°C: Heat kills most bacteria at 60°C, and kills essentially all bacterial above 65°C. Two common protocols have emerged for sanitizing validated high purity water systems: 72°C for 30-60 minutes (bacteria killed in seconds) 80°C for 15-30 minutes (bacteria killed in milliseconds) SnowPure’s HTS … Read more
In México, EDI (Electrodeionización) is used to produce pure and ultrapure water for both Generación de Energía y Farmacéutica (USP PW y WFI). (Electrodeionización para Energia y Agua Farmaceutica) SnowPure works in México with OEMs to choose technologies and processes that will enable good performance and long life for RO (OI) and EDI Electrodeionization (Electrodeionización). … Read more
Measuring pH properly in pure and ultrapure water is difficult. pH is critical for process control and for preventing corrosion for example. pH of Ultrapure Water pH of Ultrapure water is 7.00. The only ions present are H+ and OH-, and since these must be in balance, the pH is 7. Don’t try to measure … Read more
Simplified, Value-Priced EDI A Complementary Technology to Portable Exchange DI (PEDI) EDI for Dealers is now a reality. Ultrapure water is a concern for water treatment companies who service critical applications such as Laboratory and Pharmaceutical. You must apply the right technology for your customers’ needs, while remaining competitive and realizing a reasonable profit. EDI … Read more
EDI, Why FCE is Important for Electrodeionization System Performance FCE is Important for EDI System Performance. Electrodeionization systems depend on conductivity, CO2, and Silica; all brought together by using FCE, or Feedwater Conductivity Equivalent. For an electrodeionization system to operate properly, the feed water must be high-quality Reverse Osmosis (RO) permeate. An RO permeate water … Read more
Electrodeionization (EDI) history extends back to the mid-1970’s in the USA. Possibly back to Argonne National Labs in the 1950’s as a scientific novelty. However, the first working EDI modules were made by Harry O’Hare in 1977 and 1978, and were tested by the Southern Research Institute (SRI). The concept was “filled-cell ED”, an attempt … Read more
In electrodeionization, DC voltage is the force for driving ions out of the stream to be purified. Current is a result of the movement of ions. Both as a matter of physics and as a practical matter, SnowPure recommends using “Voltage Control” for EDI: set the DC voltage potential to the EDI system and walk … Read more