What is ultrapure water?
In addition to water molecules (H20), ultrapure water contains almost no impurities, no bacteria, viruses, organic matter such as chlorinated dioxins, and no mineral trace elements required by the human body. Ultrapure water has no hardness and tastes sweet. It is often called soft water and can be drunk directly or boiled.
Ultrapure water is water produced by distillation, deionization, reverse osmosis technology or other appropriate supercritical fine technology. It is difficult to reach the level of general technology and is widely used in biology, medicine, automobiles and other fields.
Process flow of ultrapure water equipment
Water treatment equipment that uses pretreatment, reverse osmosis technology, ultrapurification treatment and post-treatment methods to almost completely remove the conductive medium in the water and remove the undissociated colloidal substances, gases and organic matter in the water to a very low level is called ultrapure water equipment. Ultrapure water system equipment is generally composed of a pretreatment part, a reverse osmosis host part, and a post-treatment part.
1. The pretreatment consists of a quartz sand filter, an activated carbon filter, and an AC filter. An ultrafiltration system can also be used as pretreatment. The main purpose of pretreatment is to remove the sediment, rust, colloids, suspended matter, chroma, odor, and biochemical organic matter contained in the raw water.
2. The reverse osmosis host is mainly composed of a high-pressure pump, a membrane shell, an imported reverse osmosis membrane assembly, an online surface, and control electronics. As long as the number of membranes and the type of pump are properly selected, the desalination rate and water output of the reverse osmosis host can reach the specified indicators, and the conductivity of the outlet water can be guaranteed to be ≤10us. CM.
3. The post-treatment part is to further deepen the pure water produced by reverse osmosis to produce ultrapure water, generally an ion exchange mixed bed device or an EDI device. If it is used in the direct drinking water process, a sterilization device can be added, generally an ultraviolet sterilizer or an ozone generator, so that the produced water meets the direct drinking standard.
Fulham ultrapure water machine process flow diagram
Scope of use of ultrapure water equipment
●Water for physiological, pathological and toxicological experiments
●Purified water and high-purity water for hospitals, pharmaceutical preparation rooms and central laboratories
●Water for atomic absorption spectroscopy
●Water for animal and plant cell culture
●Water for various medical biochemical analyzers, analyzers, and hemodialysis machines
●Water for analytical reagents and drug preparation and dilution
●Use in semiconductors: water for production and processing of semiconductor raw materials, testing and preparation of semiconductor devices
●Water for various high-performance liquid chromatography and ion chromatography
●Other laboratory water and medical water
