VEOLIA EDI E-Cell MK-7 EDI Modules For Continuous Electrodeionization Water Treatment
The Veolia EDI high flow module MK-7 has attracted much attention in the field of water treatment due to its significant pressure reduction advantage. This feature not only improves the overall efficiency of the system, but also reduces energy consumption and operating costs, providing industrial users with more efficient and energy-saving water treatment solutions.
Firstly, the MK-7 high flow module adopts advanced electrodeionization (EDI) technology, which drives the exchange of ions in the ion exchange resin with ions in water through an electric field, achieving efficient water purification. During this process, the MK-7 module achieved the advantage of pressure reduction by optimizing the electric field distribution and resin layout, greatly reducing the resistance to water flow passing through the module.
Secondly, the MK-7 high traffic module has also undergone many innovations in its internal structural design. The module adopts an optimized flow channel design internally, which enables water flow to pass through more smoothly and reduces the frictional resistance between water flow and the module wall. At the same time, the ion exchange resin inside the module has also undergone special treatment, with higher exchange capacity and better water flow permeability, further reducing pressure drop.
In addition, the MK-7 high flow module is equipped with an intelligent control system that can monitor water quality and the operation status of the module in real time, and adjust the electric field strength and water flow rate according to the actual situation to ensure the best desalination effect and the lowest pressure drop. The application of this intelligent control system not only improves the stability and reliability of the system, but also enables the MK-7 module to maintain a low pressure drop under various working conditions.
In practical applications, the pressure reduction advantage of the MK-7 high flow module has brought many benefits. Firstly, it reduces energy consumption. Due to the decrease in pressure drop, the power required by the water pump also decreases, thereby reducing energy consumption. Secondly, it has improved the overall efficiency of the system. The decrease in pressure drop makes the water flow smoother, improving the system's water flux and desalination efficiency. Finally, it reduced operating costs. Due to the reduction in energy consumption and improvement in efficiency, the maintenance and replacement costs required for the MK-7 high flow module during operation have also been correspondingly reduced.
In summary, the pressure reduction advantages of Veolia's EDI high flow module MK-7 are mainly reflected in its advanced electrodeionization technology, optimized internal structure design, and application of intelligent control system. These advantages enable the MK-7 module to have higher efficiency and lower energy consumption in the field of water treatment, providing industrial users with more efficient and energy-saving water treatment solutions.
Quality Assurance
• CE, RoHS, CSA and EAC marked
• Manufactured in an ISO 9001 and ISO 14001 facility
• Certified with UKCA
• E-Cell MK-7 Stacks are Halal certified by the Islamic Food and Nutrition Council of America (IFANCA®)
| E-Cell MK-7 Stack Specifications |
| Nominal Flow | 7.0 m³/h (31 gpm) |
| Flow Rate Range | 4.2 – 7.8 ³/h (18 – 34 gpm) |
| Shipping Weight 165 kg | (364 lbs) |
Dimensions
(width x height x depth) | 30 cm x 61 cm x 74 cm
12’’ x 24” x 30” |
Notes:
1. Actual performance may vary depending on site conditions. Reference Winflows projection software to verify expected product water quality as well as the resistivity, sodium, and silica performance guarantees that are offered for the design conditions. To obtain boron or other guarantees, contact Veolia.
2. Inlet pressure is determined by the downstream pressure requirements for the product and concentrate streams, the choice of counter-current or co-current operation, and stack pressure drop.
3. At nominal flow and 25°C. Reference Winflows projection software to verify for design conditions.
4. Reference the Winflows projection software and the E-Cell Stack Owner’s Manual to verify feed water specifications for the design conditions.
5. TEA (ppm as CaCO3) - Total Exchangeable Anion, this represents the concentration of all of the anions present in the feed water including contributions from OH- , CO2 and SiO2. Winflows must be used to confirm the feed water TEA is acceptable at the specific applications’ operating conditions. Table value is at minimum flow and maximum temperature.
6. 1.0 ppm as CaCO3 feed water hardness limit applies to standard counter-current flow operation only. Allowable feed water hardness decreases to 0.1 ppm as CaCO3 in co-current flow operation.
7. Allowable silica limit decreases above 5 m3 /h flow. Allowable silica limit decreases to 0.5 ppm with feedwater hardness above 0.5 ppm as CaCO3.
8. The boron feed level is limited to 0.3 ppm as B whenever there is a silica guarantee requirement or resistivity guarantee requirement above 10 MOhm-cm, as higher boron levels could impact performance. Without these requirements the limit is 1.0 ppm boron.
9. Reverse Osmosis (RO) or equivalent feed water: RO provides EDI feed water that is substantially free of particulate matter, colloidal material and high molecular weight organic substances, which can foul ion exchange media. RO permeate quality is specified since EDI stacks contain packed beds of ion exchange medium that cannot be backwashed/fluidized to remove particulate matter. Systems with an open system between a RO system (or other source) and E-Cell (ex. tank, decarbonator) must be fitted with filters immediately preceding the E-Cell, to protect the E-Cell against contamination with particulate matter. Generally, a 5 µm absolute or 1 µm nominal filter will be acceptable.
10.APHA - color standard/scale named for the American Public Health Association and defined by ASTM D1209.Veolia Water Technologies
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