I. Overview of Reverse Osmosis Systems
High levels of impurities are present in natural water, making a pretreatment system before reverse osmosis indispensable. A well-designed pretreatment system not only ensures the long-term stable operation of subsequent equipment but also operates safely for an extended period. The choice of pretreatment methods varies with water quality, including multimedia filters, activated carbon filters, sediment filters, softeners, iron and manganese removal filters, and disk filters, etc.
1. Multi-Media Filter
Process Features: Multi-medium filter, also known as a mechanical filter, primarily retains physical impurities in water, removing suspended matter, solid particles, and some colloidal substances.
Materials include: fiberglass, carbon steel (internally coated for corrosion resistance), and stainless steel SUS304 (lined with rubber for corrosion resistance), catering to the production and process requirements of various industries.
Control Methods: Manual Operation, Semi-Automatic, Fully Automatic (with automatic control valves, pneumatic valve groups, and electric valve groups, etc.).
Model and Specifications: Glass Reinforced Plastic specification NCHJL-B-200-1500. Filter diameter ranges from 200-1500mm.
Carbon steel, Stainless Steel SUS304, specification NCHJL-T-200-3000. Filter diameter: 200-3000mm.
Based on your actual water usage, we'll assist you in selecting the appropriate specifications and materials.
2. Active Carbon Filter
Process Features: Activated carbon filters are primarily used to adsorb color, taste, residual chlorine, organic matter, and colloidal substances in water; they also serve to filter out large particles. They can be equipped with pasteurization to extend the lifespan of the activated carbon, reducing bacterial growth during the production process.
Materials include: fiberglass, carbon steel (with internal corrosion protection), and stainless steel SUS304 (lined with rubber for corrosion protection), which can meet the production and process requirements of various industries.
Control Methods: Manual Operation, Semi-Automatic, Full Automatic (including automatic control valves, pneumatic valve groups, and electric valve groups, etc.).
Model and Specifications: FRP specification NCHTL-B-200-1500. Filter diameter ranges from 200-1500mm.
Carbon steel, stainless steel SUS304 specification NCHJL-T-200-3000. Filter diameter from 200-3000mm.
3. Demineralizer
Process Features: The softener, also known as a sodium ion exchange unit, effectively removes Ca2+ and Mg2+ from the water during the production process, reducing water hardness. This prevents the formation of carbonate scale and sulfate scale in the water, allowing for the resin to be regenerated and reused. The softener is suitable for softening boiler water and as a pretreatment for reverse osmosis.
Materials include: glass fiber reinforced plastic, carbon steel (internal anti-corrosion), and SUS304 stainless steel (lined with rubber anti-corrosion), which can meet the production and process requirements of various industries.
Control Methods: Manual Operation, Semi-Automatic, Fully Automatic (including automatic control valves, pneumatic valve groups, and electric valve groups, etc.).
Model and Specifications: Glass Reinforced Plastic (GRP) specification NCHTL-B-200-1500. Filter diameter ranges from 200-1500mm.
Carbon steel, Stainless Steel SUS304, specification NCHJL-T-200-3000. Filter diameter ranges from 200-3000mm.
4. Filter Cartridge Housing
Process Features: The filter, also known as a fine filter in the water system, is typically made of a 5µm aperture polypropylene (PP) membrane formed by meltblowing. Fine filtration is a pretreatment process before the raw water enters the reverse osmosis membrane. Its function is to prevent leaks that may exist in the previous filtration stage, ensuring the long-term normal operation of the reverse osmosis system.
Materials include: fiberglass, carbon steel, and stainless steel SUS304, catering to the production and process requirements of various industries.
Model and Specifications: Glass Reinforced Plastic (GRP) specification NCHTL-B-200-1000. Filter diameter ranges from 200-1000mm.
Carbon steel, Stainless Steel SUS304 specification NCHJL-T-200—1500. Filter diameter from 200-1500mm.
Based on your actual water usage, we will assist you in selecting the appropriate material and specifications.
