Reverse Osmosis Membrane

I. Overview of Reverse Osmosis Systems

Natural water contains a high amount of impurities, making pre-treatment systems before reverse osmosis essential. A well-designed pre-treatment system not only ensures long-term stable operation of subsequent equipment but also operates safely for an extended period. Depending on the water quality, pre-treatment options include multi-media filters, activated carbon filters, sediment filters, softeners, iron and manganese removal filters, and disk filters, etc.

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: 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, fully automatic (including automatic control valves, pneumatic valve groups, and electric valve groups, etc.).

Model and Specifications: Glass Fiber Reinforced Plastic (GFRP) model NCHJL-B-200-1500. Filter diameter ranges from 200 to 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 particle impurities. They can be equipped with pasteurization to enhance 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), catering to various industry production and process requirements.

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) model 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, thereby reducing the water hardness. This prevents the formation of carbonate scale and sulfate scale during production, and the resin can be regenerated for recycling use. The softener can be used for softening boiler water and as pretreatment for reverse osmosis.

Materials include: fiberglass, carbon steel (internally lined for corrosion resistance), and stainless steel SUS304 (lined with rubber for corrosion resistance), 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: 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 achieved through a melt-blown polypropylene (PP) membrane with a 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 process 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 ranges from 200-1500mm.

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