Water Inlet Problem of Industrial Pure Water Equipment

Many factors can affect the normal operation of industrial pure water equipment, and the quality of the influent water is one of them. To avoid being affected by the influent water quality, what issues should be considered when designing the influent water for industrial pure water equipment?

The influent water should consider the expected water volume, water quality, water source, and any potential problems. Sometimes the current raw water flow rate may be sufficient, but you should ensure that the estimated raw water volume includes future increases in water consumption, and that changes in current water requirements are also considered during the design phase. The quality requirements of the product water are determined by the final water usage process.

The production cost of the product water increases with the purity of the final product water. If the water usage requirements do not necessarily require the high quality of the effluent from the industrial pure water equipment, alternative treatment methods should be carefully considered, and this factor should be fully considered during the design phase.

The chemical composition and characteristics of the water source must be thoroughly understood. Any system design must be able to withstand best and worst conditions. Well water generally has relatively stable temperature and chemical composition, with low suspended solids (SS), but each well should be considered a different water source. Surface water varies greatly. While generally having low dissolved solids (TDS), it often has high levels of suspended solids (SS), organic matter, and microorganisms. Municipal water supplies typically originate from surface water, and the operating conditions of these systems frequently change, leading to significant variations in water quality.

Preserving original source water quality data is crucial. Only data obtained through proper sampling and correct analytical methods can be reliable. Water sample bottles should be acid-washed, and caps should be fitted with plastic gaskets. Sampling points should be in free-flowing water areas, not dead zones. A single sampling point is insufficient; a series of samples must be obtained, covering all seasons and conditions, such as after rain or during droughts. Any potential future water source must undergo thorough water quality analysis.

This concludes the introduction to the considerations for the influent of industrial pure water equipment. Industrial pure water equipment has many requirements for influent and often includes pretreatment before the equipment to prevent excessive impurities in the influent from damaging the reverse osmosis membrane.