Pure water production equipment design process, the flow of produced water, produced water quality and water quality of the three bases is the most basic design basis. System design conditions of the influent water quality is the pretreatment system water quality, not only the various components of the water body indicators should meet the system requirements, but also because of the addition of scale inhibitors and dispersants to make the system water intractable salt saturation increased accordingly. Pure water production equipment, three categories of design basis for the specific content is as follows.
1, water production flow:
To cubic meters per hour numerical characterization of the system's water production flow requirements, the individual system's water production flow requirements with seasonal changes.
2, produced water quality:
Including the total salt content, fluorine and boron and other special ion content and PH value and other indicators. General pure water preparation system mainly examines the total salt content (mg / L) indicators, for the PH value or special ion content requirements can be combined with the membrane system before and after the process to be dealt with. Produced water quality requirements generally do not exist seasonal differences.
3, feed water quality:
Can be subdivided into water temperature, total salt content, insoluble salt content, non-salt pollutants and water type of five categories. Natural water bodies as a source of water intake water quality will change with the seasons, and process drainage as a source of water intake water quality may have a higher frequency of change and higher amplitude of change.