Technology Overview
A membrane filtration
External pressure: the pressure difference from outside to inside by liquid permeates through the hollow fiber become permeate, while the retained material is collected in the outer hollow filament. Where epoxy or polyurethane end seals role in the hollow fiber membranes to seal the gap between the ends of the wire between the membrane, so that the liquid-liquid separation and by preventing liquid membrane without filtration directly into the wire permeate.
Internal pressure: the first liquid into the hollow membrane filaments inside, driven by the pressure difference, penetration from the inside out through the hollow fiber membrane become permeate, concentrate were kept inside the hollow membrane filaments, the outflow from the other side, it flows See Figure II: where epoxy or polyurethane end seals role in the hollow fiber membranes to seal the gap between the ends of the wire between the membrane, so that the liquid-liquid separation and through, without preventing the liquid film yarn filtration directly into the permeate.
Second, the full amount of the cross-flow filtration and filtration
2.1 Filter All: refers to all the liquid in the liquid permeates through an ultrafiltration membrane, no concentrated liquid effluent.
2.2 Cross-flow filtration: there is a portion of the concentrated liquid from the other end of the ultrafiltration membrane is drained or circulated in the filtration process.
Third, the electrophoretic paint ultrafiltration membrane characteristics:
Large volume of water, specifically the amount of water can be customized according to the actual needs of users; retention rate, ultra-filtrate is clear and transparent; strong anti-pollution, water production is not deteriorated in the long run; have high strength, acid, heat resistance well, porous uniform flux per unit area and so on.
Electrophoretic paint ultrafiltration Specifications
Membrane Model
UF-4040
UF-5040
UF-6040
Membrane design flux
60-80L / H
150-180L / H
230-250L / H
Membrane type
External pressure (membrane shell UPVC, ABS, 304 stainless steel)
Membrane materials
High strength corrosion resistant polypropylene (pp) hollow fiber membranes
Membrane MWCO
5-8 million Dalton
Membrane effective area
14m2
32m2
48m2
Film loading amount of wire
15,000 * 1 m
35,000 * 1 m
55,000 * 1 m
Inner and outer membrane wire
Inner diameter: 300-320um, wall thickness 45-50um
The maximum inlet pressure paint
0.20mpa
Normal pressure into the paint
0.10-0.15mpa
Temperature
1-45 ℃
Acid and alkali resistance (PH)
1-14
Run
Cross-flow filtration
Backwashing pressure
0.15-0.18Mpa
Backwash flow
0.8T / H, 0.15Mpa
1.8T / H, 0.15Mpa
2.5T / H, 0.15Mpa
Anti-cleaning agents
Electrophoretic paint special solvent, hydrochloric acid, NaOH