I. Overview of Reverse Osmosis Systems

Natural water contains a high amount of impurities, 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 and stably over the long term. 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-media 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 (with internal anti-corrosion), and stainless steel SUS304 (lined with rubber for anti-corrosion), which can meet the production and process requirements of various industries.

Control Methods: Manual operation, semi-automatic, and fully automatic (including automatic control valves, pneumatic valve groups, and electric valve groups, etc.).

Model and Specifications: FRP specification NCHJL-B-200-1500. Filter diameter ranges from 200-1500mm.

Carbon steel, stainless steel SUS304 specification NCHJL-T-200-3000. Filter diameter from 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 absorb colors, tastes, residual chlorine, organic matter, and colloidal substances in water; they also serve to filter out large particle impurities. Pasteurization can be equipped to extend the service life of activated carbon, reducing the proliferation of bacteria during the production process.

Materials include: fiberglass, carbon steel (with internal corrosion protection), and stainless steel SUS304 (lined with rubber for corrosion protection), 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: 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+ ions from the water during the production process, thereby reducing water hardness. This prevents the formation of carbonate and sulfate scales in the process, and the resin can be regenerated for recycling use. The softener can be used for boiler water softening and as a pretreatment for reverse osmosis.

Materials include: fiberglass, carbon steel (with internal corrosion protection), and stainless steel SUS304 (lined with rubber for corrosion protection), catering to 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) 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, Filter 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 melt blowing. Fine filtration is a pre-treatment process before the raw water enters the reverse osmosis membrane. Its function is to prevent any leakage from the previous filtration stage, ensuring the long-term stable 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) NCHTL-B-200-1000. Filter diameter ranges from 200-1000mm.

Carbon steel, Stainless Steel SUS304, specification NCHJL-T-200-1500. Filter diameter ranges from 200-1500mm.

Based on your actual water usage, we'll assist you in selecting the appropriate material and specifications.