Hangzhou Haina Environmental Protection Tech Co., Ltd.
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8040 Ultra-Low-Pressure RO Membrane for Water Treatment Purifier RO System
Reverse osmosis membrane microfiltration applications are very common, and the new filtration technology is lower in cost and operation than traditional filtration. Membrane replacement is one of the main tasks of equipment maintenance, and the replacement of reverse osmosis membranes has a lot to do with the quality of the equipment. It will also affect the service life. For small systems without special management, the replacement cycle of RO membrane is usually 1-2 years, and for medium and large systems with special management, it is easier to use 3-5 years. Of course, what we're talking about here is usually a large water treatment system.
Characteristics of reverse osmosis membrane biofouling
The biofouling of reverse osmosis membranes is difficult to thoroughly clean mainly because the content of microorganisms including bacteria, algae, fungi and their viruses in water is very large and grows rapidly. Once a bacterial community appears on the membrane surface, a slime film will soon be formed. At the same time, the biological slime film is insoluble in acid and insoluble in alkali, and cannot be easily removed even if it is frequently washed with cement. However, if the biological fouling of the reverse osmosis membrane is not cleaned in time, it will easily cause the system inlet water pressure to increase, the pressure difference to increase, and the water production to decrease. Generally speaking, the first reverse osmosis membrane is seriously polluted by organisms, and the membrane surface and flow channel pollution will occur at the same time. Once we find that any position of our reverse osmosis membrane is generally because the pressure difference of the front-end element increases rapidly, the feed water pressure rises rapidly , if the salt transmission rate generally increases, it is necessary to consider whether the membrane element is subject to biological fouling.
Performance
| Model Number | Description | 8040-ULP |
| Performance & Test Condition | The Desalination Rate % | 99.2% |
| Water Rate GDP | 10500 | |
| The Test pressure | 150psi | |
| Test solution Temperature | 25± 1ºC | |
| Test Solution Concentration (1:1:1) labeling | 1500ppm | |
| Test solution PH value | 6.5-7.5 | |
| Recovery Of Single-Branch Membrane Element | 15% | |
| Feed water SDI | 5 |
Dimension of Membrane
Operating Limit:
| Maximum Operating Temperature | 113ºF(45ºC) |
| Maximum Working Pressure | 600psi(41.0 bar) |
| The high pressure drop | 15psi (1.0bar) |
| Continuously operating PH range a | 3-10 |
| Short wash PH range (30min) b | 2-12 |
| Maximum feed water SDI | SDI 5 |
| Tolerance Of Free Chlorine | <0.1ppm |
| Maximum pressure drop for single membrane element | 15psi(0.1Mpa) |
1.When PH is above 10, the Maximum Temperature of Continuous Operation is 35ºC.
2.Under certain conditions, the presence of free chlorine and other oxidants in the water may cause serious membrane damage, which doesn't belong to product warranty range.
FAQ:
1. Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
2. Q: Should we use our logo/brand?
A: Yes, OEM is absolutely supported. But for some items quatity is 500pcs.
3. Q: What is the filtering accuracy of RO membrane?
A: RO meembran filtering accuracy is 0.0001um.
4.RO membrene desalination rate and service life ?
A: RO meembran desalination rate more 98%,service life according to water quality 2-3years
5. Q: What is the payment?
A: Usually we offer two payment terms: by Alibaba or by TT. L/C and D/A.
6. Q: How long time have your company in water treatment?
A: We have more than 18 years experience in water treatment equipment/water treatment solution.