Power plant demineralized water reverse osmosis

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 and reliably over the long term. The choice of pretreatment depends on the water quality, including multimedia 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 retain physical impurities in water, removing suspended matter, solid particles, and some colloidal substances.

Materials include: fiberglass, carbon steel (internally lined for corrosion resistance), and stainless steel SUS304 (lined with rubber for corrosion resistance), capable of meeting 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: FRP specification NCHJL-B-200-1500. Filter diameter ranges from 200-1500mm.

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

Based on your actual water usage, we assist in selecting the appropriate specifications and materials.

2. Active Carbon Filter

Process Features: Activated carbon filters are primarily used to adsorb color, odor, 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 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, Fully Automatic (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 ranges 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 water hardness. This prevents the formation of carbonate and sulfate scale in the water during production. The resin can be regenerated and reused. The softener can be used for water softening in boilers and as pretreatment for reverse osmosis.

Materials include: fiberglass, carbon steel (with internal anti-corrosion), and stainless steel SUS304 (lined with anti-corrosion material), 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 specifications 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.

4. Filter Cartridge Housing

Process Features: The filter, also known as a fine filter in the water system, is typically implemented by a polypropylene (PP) membrane with a meltblown pore size of 5µm. Fine filtration is a pre-treatment process before the water enters the reverse osmosis membrane. Its function is to prevent any leakage from 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 various industry production and process requirements.

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