60T single stage reverse osmosis Myanmar power plant pure water equipment

The 5 major advantages of pure water equipment:  

①. High water permeability and high desalination rate. Under normal conditions, ≥98%.  

②. High retention and removal efficiency for organic matter, colloids, particles, bacteria, viruses, and pyrogens.  

③. Low energy consumption, high water utilization rate, and operating costs lower than other desalination equipment.  

④. The separation process involves no phase change, ensuring reliable stability and safety.

⑤. Compact equipment size, fully automatic PLC control system for simple operation and easy maintenance, strong adaptability, and long service life.

Pure Water Equipment:

The primary technology used in pure water equipment is reverse osmosis (RO) membrane technology. The working principle involves applying pressure to the water, allowing water molecules and ionized mineral elements to pass through the reverse osmosis membrane. Most inorganic salts (including heavy metals), organic matter, bacteria, viruses, and other impurities dissolved in the water cannot pass through the membrane, thereby separating the permeated pure water from the concentrate that cannot pass through. The pore size of the reverse osmosis membrane is only 0.0001 microns, while viruses typically range in diameter from 0.02-0.4 microns and common bacteria have a diameter of 0.4-1 micron.

In recent decades, mixed-bed ion exchange technology has been the standard process for producing ultra-pure water. However, due to the periodic regeneration of ion exchange resins requiring large amounts of chemicals (acid and base) and pure water, which also causes environmental concerns, there has been a need to develop acid and base-free ultra-pure water systems.

As traditional ion exchange technology increasingly fails to meet modern industrial and environmental demands, the EDI (Electrodeionization) technology, combining membranes, resins, and electrochemical principles, has revolutionized water treatment. EDI uses electricity to regenerate ion exchange resins instead of using acids and bases, making it more environmentally friendly.

Since the commercialization of EDI membrane stack technology in 1986, thousands of EDI systems have been installed worldwide, particularly in industries such as pharmaceuticals, semiconductors, power generation, and surface cleaning. EDI is also widely used in wastewater treatment, beverages, and microbiological industries.

EDI Device Advantages:

EDI devices are used after the reverse osmosis system to replace traditional mixed-bed ion exchange technology (MB-DI) for stable deionized water production. Compared to mixed-bed ion exchange, EDI technology offers the following advantages:

1. Stable Water Quality

2. Easily Achievable Fully Automated Control

3. No Downtime for Regeneration

4. No Chemical Regeneration Needed

5. Low Operating Costs

6. Compact Size

7. No Wastewater Discharge

EDI technology is a revolutionary water treatment process that integrates electrodialysis with ion exchange into a continuous deionization process, and is considered a high-tech, eco-friendly technology. EDI water purification systems provide continuous water output, eliminate the need for acid-base regeneration, and are unmanned, gradually replacing mixed-bed systems in ultra-pure water production.

Equipment Principles:

The ultra-pure water system uses pre-treatment, reverse osmosis technology, mixed-bed ion exchange, EDI modules, and post-treatment to nearly remove all conductive media from the water, while also removing colloidal substances, gases, and organic matter to a very low level. The system is also called ultra-pure water device, ultra-pure water machine, ultra-pure water instrument, ultra-pure water system, or laboratory ultra-pure water device. The resistance of the ultra-pure water produced by the system is generally greater than 10 MΩ, with a typical output reaching 18.25 MΩ.

Process Overview:

1. Pre-treatment

   • Traditional process: Composed of mechanical filters, activated carbon filters, and security filters.

   • Latest process: Composed of mechanical filters, security filters, and ultrafiltration.

2. Reverse Osmosis System

   • Composed of high-pressure pumps and reverse osmosis membranes.

   • Can be divided into single-stage reverse osmosis and two-stage reverse osmosis.

3. Fine Treatment System

   • Composed of ion exchange and microporous filters.

   • Composed of EDI and microporous filters.

Process Flow:

Ultra-pure Water Production Process:

1. Pre-treatment system → Reverse osmosis system → Intermediate water tank → Coarse mixed bed → Fine mixed bed → Pure water tank → Pure water pump → UV sterilizer → Polishing mixed bed → Precision filter → End use (≥18 MΩ·cm) (Traditional process)

2. Pre-treatment → Reverse osmosis → Intermediate water tank → Pump → EDI device → Purification water tank → Pure water pump → UV sterilizer → Polishing mixed bed → 0.2 or 0.5 μm precision filter → End use (≥18 MΩ·cm) (Latest process)

3. Pre-treatment → Primary reverse osmosis → Chemical dosing (pH adjustment) → Intermediate water tank → Secondary reverse osmosis (positive charge reverse osmosis membrane) → Pure water tank → Pure water pump → EDI device → UV sterilizer → 0.2 or 0.5 μm precision filter → End use (≥17 MΩ·cm) (Latest process)

4. Pre-treatment → Reverse osmosis → Intermediate water tank → Pump → EDI device → Pure water tank → Pure water pump → UV sterilizer → 0.2 or 0.5 μm precision filter → End use (≥15 MΩ·cm) (Latest process)

5. Pre-treatment system → Reverse osmosis system → Intermediate water tank → Pure water pump → Coarse mixed bed → Fine mixed bed → UV sterilizer → Precision filter → End use (≥15 MΩ·cm) (Traditional process)

Each of these processes has its advantages, and you can choose the one that best suits your needs. With the development of science, many new processes have replaced older ones. Reverse osmosis technology for producing high-purity water has become widespread and is now the most common process.

Equipment Features:

1. Large Water Permeation, High Salt Removal Rate: Normally ≥98%.

2. High Removal Efficiency for Organic Matter, Colloids, Particles, Bacteria, Viruses, and Endotoxins.

3. Low Energy Consumption, High Water Utilization: Operating costs are lower than other desalination equipment.

4. Reliable and Stable Separation Process: No phase change.

5. Compact Equipment Design: Simple operation, easy maintenance, strong adaptability, and long service life.

Applications of Reverse Osmosis Purified Water Equipment:

1. Electronics, Industrial, Pharmaceutical, and Food Industries: Production of purified and ultra-pure water.

2. Textile, Chemical Industry: Process water, chemical cycle water, and chemical product purification and preparation.

3. Food and Beverage Industry: Purification and preparation of water for food production, beverages, bottled water, beer, spirits, and health products.

4. Industrial Production: Purification, concentration, and recovery of useful substances from aqueous solutions.

5. Power Industry Boiler Make-up Water: Pre-desalting of high-pressure boiler make-up water for thermal and coal-fired power plants.

6. Desalination of Brackish Water and Seawater: Suitable for islands, ships, offshore drilling platforms, and brackish water areas.

7. Purified Water Devices: First-stage desalination devices for high-purity water production.

8. Large Institutions: Suitable for communities, real estate properties, schools, factories, hospitals, tea houses, hotels, beauty salons, and canteens.

9. Bottled Water Production: Production of bottled water, mineral water, etc.

10. Electronics Industry: Water for cleaning integrated circuits, silicon wafers, display tubes, and other electronic components.

11. Pharmaceutical Industry: Water for large-volume infusions, injections, tablets, biochemical products, and equipment cleaning.

12. Desalination of Seawater and Brackish Water: Suitable for islands, ships, offshore platforms, and brackish water regions.

13. Other Industrial Uses: Ultra-pure water for automotive, home appliance coating, coated glass, cosmetics, and fine chemicals.