Laboratory ultra pure water equipment

It usually consists of three parts: raw water pretreatment system, reverse osmosis purification system, and ultra purification post-treatment system. The main purpose of pretreatment is to meet the inlet requirements of the reverse osmosis membrane separation module and ensure the stable operation of the reverse osmosis purification system. The reverse osmosis membrane system is the most economical and efficient purification method for removing over 98% of ions, organic matter, and 100% microorganisms (theoretically) from raw water in one go. The ultra purification post-treatment system further removes trace ions, organic matter, and other impurities remaining in reverse osmosis pure water through various integrated technologies to meet the final water quality requirements for different purposes.

Preparation system

The pure water preparation system uses tap water as the inlet to prepare a sufficient amount of pure water that meets the specific water quality requirements of the laboratory, which is the starting point of the overall pure water system in the laboratory. The daily usage of pure water in the laboratory may range from a few liters to several thousand liters. The first consideration in design is to determine the daily water consumption and required pure water quality for each user and instrument, as well as the water usage pattern. Then the pure water design department can calculate the total daily and peak water consumption of the entire laboratory based on this.

Storage system

The storage system can act as a buffer between daily peak water usage, allowing the pure water preparation system sufficient time to produce the laboratory's daily required pure water. At the same time, the pure water storage tank must be able to ensure stable water quality and prevent pollution. The material and many design details of the water tank will affect the quality of pure water stored in the tank.

Distribution system

The main purpose of the pure water distribution system is to deliver pure water to each water point through distribution pumps and pure water distribution pipelines. To ensure the flow rate and pressure of pure water in the pipeline, laboratory pure water designers should accurately calculate the pressure loss caused by the pipeline system and equipment in the pipeline, and then select the appropriate distribution pump.

The pure water distribution system should also include additional equipment to further purify the pure water while maintaining its quality, and monitor the water quality in the pipelines. Therefore, it may be necessary to use pipeline ultraviolet devices to reduce the levels of microorganisms and total organic carbon in pipeline pure water, or to use pipeline sterilization filters to reduce the microbial content in pipeline pure water. The water quality monitoring during the pure water distribution system stage is very important. Because the water quality in the pipeline is the true water quality of the pure water we obtain from various water points and use for experiments.

Ultra pure water system