Ion Exchange Device

Water softener Line

DER - Series

 (Commercial Use)

  • Processing Capacity: 18 ~ 48 tons/cycle (based on a standard of 80 ppm)
  • Operating Pressure: 2 kg/m²
  • Temperature Range: 37.7°C
  • Water Type: X-1000
  • Regeneration Method: Based on the processed fluid volume
  • Regeneration Agent: None
  • Maintenance: Minimum amount of regeneration agent and water with fully automated control

Applications: Restaurants, cafes, saunas (steam rooms), hospitals, sports centers, golf courses, beauty shops, office buildings, industrial complexes, and after-treatment facilities.

PCS - Series

 

  • Processing Capacity: 50 ~ 500 tons/cycle
  • Operating Pressure: 2 kg/m²
  • Temperature Range: 37.7°C
  • Water Type: X-1000
  • Regeneration Method: Based on processed volume
  • Regeneration Agent: Salt
  • Maintenance: Automated system with minimal usage of regeneration agent and water

Applications: Large restaurants, large saunas, buildings, cooling water, etc.

PSICS - Series

  • Processing Capacity: 50 ~ 500 tons/cycle
  • Operating Pressure: 2 kg/m²
  • Temperature Range: 37.7°C
  • Water Type: X-1000
  • Regeneration Method: Based on processed volume
  • Regeneration Agent: Salt
  • Maintenance: Automated system with minimal usage of regeneration agent and water

Applications: Large restaurants, large saunas, buildings, cooling water, etc.

PRIS - Series

  • Processing Capacity: 50 ~ 500 tons/cycle
  • Operating Pressure: 2 kg/m²
  • Temperature Range: 37.7°C
  • Water Type: X-1000
  • Regeneration Method: Based on processed volume
  • Regeneration Agent: Salt
  • Maintenance: Automated system with minimal usage of regeneration agent and water

Applications: Large restaurants, large saunas, buildings, cooling water, etc.

WATER SOFETNER SYSTEMS

DMFC’s Water Softener Systems are designed to effectively transform hard water into soft water by removing hardness-causing minerals such as calcium (Ca) and magnesium (Mg). This is achieved using ion exchange resin, a highly efficient medium that swaps the hardness ions for sodium (Na) ions, which do not contribute to water hardness.

The system operates through various stages, including service, backwash, regeneration, and rinse. These stages are controlled by different valves, as shown in the diagram. DMFC’s softeners ensure a continuous supply of soft water by cycling through these phases to maintain optimal efficiency.

The table provides detailed specifications of the water softeners available from DMFC, catering to various flow rates and pipe sizes. Tank sizes and brine storage are also customized to suit the operational requirements, ensuring that the ion exchange resin is regenerated as needed. The resin capacity is calculated based on the total hardness of the incoming water, the flow rate, and the operational time. With DMFC’s water softener systems, industries can expect enhanced water quality and reduced scaling in equipment, improving overall operational efficiency.

Removing Device Line

Nitrate Nitrogen Removal Device

 

  • Principle: This device is designed to remove nitrate compounds (NO₃⁻) from water using an ion exchange resin. The resin selectively absorbs the nitrate ions, and afterward, the resin is regenerated using a 10-16% sodium chloride (NaCl) solution, allowing for continuous reuse. The system is designed based on the intended use.

Example Usage: Ion exchange water treatment.

Regenerant: Sodium chloride (NaCl) or caustic soda (NaOH).

Ion Selectivity Order: NO₃⁻ > SO₄²⁻ > Cl⁻ > HCO₃⁻ > SiO₂ > OH⁻.

Nitrates:

    • Description: Nitrate salts typically form from animal organic matter, contributing to nitrate concentrations. The creation of nitrosamines, such as N-Nitroso compounds, occurs under acidic conditions in the stomach, where nitrates are converted into nitrites by bacteria. This reaction between nitrites and proteins forms harmful compounds.
    • Hazardous Effects: Particularly in infants under 6 months, excessive nitrate intake can lead to blue baby syndrome (methemoglobinemia).
    • Global Use: High-purity systems using ion exchange methods to remove nitrates are widely used worldwide. These systems are compact and highly effective.

Fluoride removal device

DMFC offers high-quality Cartridge Filter Housings designed for inline filtration processes. These housings provide efficient and reliable containment for filter cartridges, making them ideal for a variety of industrial applications requiring clean and safe fluid processing. The housings come in multiple sizes and configurations to handle different flow rates and filtration needs.

Key Features:

  • Durable Construction: Made from high-quality materials, these housings ensure long-term durability and resistance to corrosion, making them suitable for challenging environments.
  • Clamp & Eye Nut/Swing Bolt Design: This feature allows for easy opening and closing, ensuring quick and secure access to the filter cartridges for maintenance and replacement.
  • Versatile Nozzle Sizes and Flow Rates: The housings support a wide range of flow rates, from 0.5 m³/hr to 18-27 m³/hr, depending on the model. Nozzle sizes vary from 15 mm to 50 mm, accommodating different pipeline connections.

Physical Properties:

  • Surface Area: 350 m²/g
  • Total Pore Volume: 0.55 cc/g
  • Aluminum Oxide XRO Phase: Chi, Gamma, Amorphous
  • Crush Strength: 30 lbs (13.6 kg)
  • Abrasion Loss: 0.1 wt%

Chemical Composition:

  • Al2O3 (Aluminum Oxide): 95.1 wt%
  • SiO3 (Silicon Oxide): 0.02 wt%
  • FeO3 (Iron Oxide): 0.02 wt%
  • Na2O3 (Sodium Oxide): 0.30 wt%

Applications:

  • Water Treatment
  • Chemical Processing
  • Food and Beverage
  • Pharmaceutical Filtration
  • Oil and Gas

EDI System

EDI System

EDI is an eco-friendly system that purifies ion exchange water by using an electric field to continuously regenerate ion exchange resins. Unlike traditional DI systems that require chemicals for regeneration, the EDI system uses an electric field to remove ions and does not require any chemicals, making it an environmentally friendly system.

This system is typically applied in ultra-pure water manufacturing processes in industries like semiconductors. EDI devices are designed to continuously remove ions from water, ensuring high-purity water. The system operates without the need for chemical regenerants, relying on electricity for ion removal and regeneration.

A single-stage system can remove up to 95% of ions from water with an electrical conductivity of 1000μS/cm, and for water with 100μS/cm, the system can achieve over 99% ion removal. When used in conjunction with reverse osmosis (RO) water treatment, EDI can produce water with resistivity up to 19 MΩ-cm.

EDI Composition and Principle

  1. Ion Exchange Membrane: Selectively allows cations or anions to pass through.
  2. Ion Exchange Resin: Holds ions in place before they are removed by the electrical process.
  3. Electricity (DC):
    • Cations move towards the negatively charged membrane, and anions towards the positively charged membrane, regenerating the resin continuously without chemical input.
    • The applied electric field helps increase the speed of ion movement, improving the efficiency of ion removal.

EDI System

EDI Advantages

  1. Continuously produces ultra-pure water at high resistivity (Max. Resistivity: 18MΩ.cm).
  2. Does not require chemical regeneration.
  3. Does not produce chemical waste, so no need for separate waste management facilities.
  4. The system is on standby when not in operation and does not waste energy.
  5. Very easy to operate because it is powered by electricity.
  6. Easy maintenance, with low costs.
  7. Produces high-purity water consistently.
  8. The system is compact in design.

EDI is the safest and most chemical-free system for turning RO-permeated water into ultra-pure water. It removes CO2, dissolved silica, boron, TOC, and other contaminants. The EDI system can be customized not only for small and medium applications but also for large projects. The design can cover all EDI applications.

With EDI systems, it is possible to produce water of 18MΩ.cm resistivity and handle flow rates above 1000 gallons per minute (227 m³/hr) while maintaining consistent purity levels.

The EDI system can operate in temperatures of up to 80°C (176°F), and it can also sanitize water using hot water. It continuously produces high-purity water suitable for electronics, semiconductor industries, PDP, food manufacturing, and other industries.

EDI systems use an ion-selective membrane along with ion exchange resins to regenerate the system continuously without requiring chemicals. The system operates using the low voltage of 30V and removes more than 95% of ions, producing ultra-pure water in industries like microelectronics and pharmaceuticals.

The EDI unit removes ions by using a combination of electric fields and ion exchange membranes. Water flows through the chambers inside the EDI system, and ions are removed through the ion exchange resins. The remaining ions are transferred to the concentrate chamber, where they are removed from the water.

Silica Removal Device

◆ Silica

The most common form of Silica (SiO₂) in water exists in various forms. Due to its nature, it is found in very diverse forms in nature, depending on the environment, and in water, it usually exists in dissolved form without dissociating into ions.

This form is difficult to analyze because it is not ionized, making it hard to remove. The removal of Silica can be divided into three types depending on the form of Silica.

① Ionized Silica

→ Ionized Silica refers to the part removed by ion exchange resin. When the pH of the water is very high, ionized Silica increases, making it challenging to remove ionized Silica. In particular, when a strong alkaline regenerant is used for ion exchange, it fails to remove ionized Silica.

SioH + HO → HSiO (Ionized Silica) R-N-OH + HSiO → R-N-HSiO (Ion-exchange resin that removes Silica)

② Colloidal Silica

→ Colloidal Silica cannot be removed by ion exchange. Instead, it is removed by coagulation and filtration using SiO₂ particles. If colloidal Silica forms deposits, it becomes difficult to remove, often due to the clogging of the resin surface in ion exchange.

③ Non-Ionized Silica

→ Non-ionized Silica does not dissolve and does not participate in ion exchange. It exists in solid forms that cannot be removed by ion exchange or any process that relies on ionization.

To reduce Silica contamination, the following must be noted:

When Silica contamination occurs, ion exchange performance decreases, and periodic regeneration cycles become more frequent, which affects the efficiency of the ion exchange resin. As a result, monitoring Silica content and maintaining conductivity are important from the design phase.

Regenerating the ion exchange resin should be carefully managed to avoid problems with Silica buildup, and if possible, measures should be taken to reduce the cycles to lower the Silica contamination.

Contact Us

Feel free to contact us to :

5830 E 2nd St, Ste 7000 #17999, CASPER, WYOMING, 82609 USA