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 for an extended period. The choice of pretreatment depends on the water quality and includes multi-media filters, activated carbon filters, sediment filters, softeners, iron and manganese removal filters, and disk filters, among others.

1. Multi-Media Filter

Process Features: Multi-media filters, also known as mechanical filters, primarily trap physical impurities in water, removing suspended matter, solid particles, and some colloidal substances.

Materials include: glass fiber reinforced plastic, carbon steel (internal anti-corrosion), and stainless steel SUS304 (lined with rubber for anti-corrosion), catering to various industrial production and process requirements.

Control Methods: Manual Operation, Semi-Automatic, Full Automatic (with automatic control valves, pneumatic valve groups, and electric valve groups, etc.).

Model and Specifications: Glass Reinforced Plastic (GRP) 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 will assist you in selecting the appropriate specifications and materials.

2. Active Carbon Filter

Process Features: Activated carbon filters are primarily used to absorb 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 and reduce bacterial growth during production.

Materials include: fiberglass, carbon steel (with internal anti-corrosion), and stainless steel SUS304 (lined with rubber for anti-corrosion), catering to various industry production and process requirements.

Control Methods: Manual Operation, Semi-Automatic, Full 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: 200-3000mm.

3. Demineralizer

Process Features: The softener, which is a sodium ion exchange unit, effectively removes Ca2+ and Mg2+ from the water during production, thereby reducing the water hardness. This prevents the formation of carbonate and sulfate scale in the production process. The softener can be reused through resin regeneration. It can be used for softening boiler water and as a pretreatment for reverse osmosis.

Materials include: fiberglass, carbon steel (with internal corrosion protection), and stainless steel SUS304 (lined with rubber corrosion protection), capable of meeting various industry production and process requirements.

Control Methods: Manual Operation, Semi-Automatic, Full Automatic (with automatic control valves, pneumatic valve groups, and electric valve groups, etc.).

Model and Specifications: Glass fiber specifications NCHTL-B-200-1500. Filter diameter ranges from 200-1500mm.

Carbon steel, Stainless Steel SUS304, specification NCHJL-T-200-3000. Filter diameter: 200-3000mm.

4. Filter Cartridge, Filter Housing

Process Features: The filter, also known as a fine filter in the water system, is typically achieved by a polypropylene (PP) membrane with a meltblown pore size of 5µm. 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 SUS304 stainless steel, catering to various industry production and processing requirements.

Model and Specifications: FRP specification NCHTL-B-200-1000. Filter diameter ranges from 200-1000mm.

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

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