Easy Operate Economic Manufacturing ultrafiltration unit 100 m^3/h nano filtration membrane system in store
Easy Operate Economic Manufacturing ultrafiltration unit 100 m^3/h nano filtration membrane system in store
Membrane separation technology is a separation technology widely used in solution separation, concentration and purification. It uses a membrane with selective permeability as a separation medium. The membrane wall is densely covered with micropores. Under a certain pressure, the solvent and small molecular solutes penetrate the membrane wall as the filtrate, while the larger molecular solutes are retained by the membrane to achieve the substance Purpose of separation and concentration.
The membrane separation process is a dynamic filtration process. The macromolecular solutes are blocked by the membrane wall and flow out of the membrane module with the concentrated liquid. The permeate of the membrane is reused as process water. The concentrated liquid of the membrane is then used for evaporation and storage equipment to further increase the concentration or direct Sold as a finished product.
The pore sizes of microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (R0) membranes decrease in order, and can be used to separate substances of different sizes (as shown in the figure)
| Membrane treatment name | Microfiltration | Ultrafiltration | Nanofiltration | Reverse osmosis |
| Membrane treatment abbreviation | MF | UF | NF | RO |
| Membrane filter caliber | 0.1μm | 10nm | 1nm | 0.1nm |
| Membrane material | Polypropylene | Hollow fiber, polysulfone, ceramic membrane | Polyamide | Polyacrylamide |
| Membrane type | Symmetric membrane | Asymmetric membrane | Asymmetric membrane | Asymmetric membrane |
| Operating pressure | - | - | 0.7Mpa, the lowest is 0.3Mpa | 10.5Mpa |
| Application | Whey, skimmed milk | Whey, milk brine | Salted whey desalination and desugaring | Concentration of ultrafiltration whey permeate |
| Flux (L/m2.h) | - | - | - | 6-10 |
| Moisture | - | 1 | 1 | 1 |
| Lactose | - | 0.8-0.9 | 0.02-0.15 | 0.001-0.002 |
| CI | - | 1.0 | 0.25-0.9 | 0.02-0.06 |
| Ash,K+,Na+ | - | 0.9-0.97 | 0.15-0.5 | 0.01-0.025 |
| P | - | 0.8-0.095 | 0.04-0.25 | 0.0007-0.0025 |
| Ca2+,Mg2+ | - | 0.8-0.9 | 0.03-0.2 | 0.0005-0.0015 |
1. Concentration of low-concentration liquids;
2. Separation of two different molecular weight materials;
3. Separation, purification, concentration and impurity removal of materials;
4. Standard discharge of high-concentration wastewater such as landfill leachate and pharmaceutical and chemical wastewater;
5. Recycling and reuse of low-concentration and high-value process wastewater from an environmental or economic perspective.
Advantage
1. There is no phase change in the concentration process, low energy consumption, and its operating cost is less than one-fourth of the evaporation concentration;
2. Concentration at room temperature does not damage the active ingredients and biological activity, and is especially suitable for the separation and concentration of certain materials that are prone to deterioration and failure at high temperatures;
3. High retention rate (above 99%), the permeate can be reused as pure water;
4. In the process of concentration and separation, inorganic salt impurities can be partially or completely removed, and the product purity is high
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