Ultrapure water (UPW) is water that has been purified to very strict specifications, containing by definition only H20, and H+ and OH– ions in equilibrium. Therefore, ultrapure water conductivity is about 0,055 uS/cm at 25oC, also expressed as resistivity of 18.2 MOhm
Ultra pure water is mainly used in Semiconductor and Pharmaceutical industry. Membrane filtration or Ion Exchange system is used in the primary stage to treat the water to reach deminerlised stage. The demineralised water is then processed through a high performance Mixed Bed or by Electrodeionization
Our systems are custom-designed based on a range of factors including the specific characteristics of feed water and the desired quality of the finished product. Our systems can produce ultrapure water for a range of applications, including food, beverage, pharmaceutical, or microelectronics production, as well as boiler makeup water for power plants or any industry producing steam.
Industries We Serve
- Semi Conductors
- Photo Voltaic Cells
While each industry uses what it calls “ultrapure water”, the quality standards vary, meaning that the UPW used by a pharmaceutical plant is different than that used in a semiconductor fab or a power station. For instance, semiconductor plants use UPW as a cleaning agent, so it is important that the water not contain dissolved contaminants that can precipitate or particles that may lodge on circuits and cause microchip failures. The power industry uses UPW as a source to make steam to drive steam turbines; pharmaceutical facilities will use UPW as a cleaning agent, as well as an ingredient in products, so they seek water free of endotoxins, microbials, and viruses.
Today, Ion Exchange and Electro Deionisation (EDI) are the primary deionization technologies associated with UPW production, in most cases following reverse osmosis (RO). Depending on the required water quality, UPW treatment plants often also feature Degasser, Micro Filtration, Ultra Filtration, UV Radiation