Active Member
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[China]
Address: No. 2 Xiuyan Road, Hangzhou City, Zhejiang Province
Contact name:Robert Wang
Hangzhou Haina Environmental Protection Tech Co., Ltd. |
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Industrial 10500GPD Extra Low-Pressure RO Membrane for Water Treatment Purifier
How to clean the reverse osmosis membrane?
It can be cleaned with sodium hypochlorite and formaldehyde solution. For biological pollution, different treatment measures shall be taken according to the material of reverse osmosis membrane. Aromatic polyamide membrane can be cleaned with 1% formaldehyde solution. Residual chlorine to prevent bacterial reproduction. For the cleaning of biological pollution of reverse osmosis membrane, the biological content of raw water can be reduced as much as possible in the pretreatment stage. Conventional cleaning methods that we can usually use include chlorine or hypochlorite, ozone, ultraviolet light, etc. Non oxidizing bactericides such as DBNPA or isothiazolinone can also be used to stimulate reverse osmosis membrane systems. At the same time, we should pay attention to that once we find that the reverse osmosis membrane can be biologically contaminated, once sterilization and chemical cleaning are carried out in time, the reproduction of these organisms can be prevented and the pollution degree can be increased. Membrane element. In addition, we use a reverse osmosis membrane biological fouling cleaning method for a period of time, and try to change another method for operation, which can prevent the biological production of drug antibodies and reduce the cleaning effect.
Performance
| model | Stable rejection rate(%) | average permeate flowGPD(m3/d) | test condition | ||
| operation pressure psi(Mpa) | test liquid NaCl(ppm) | recovery rate (%) | |||
| 4040-XLP | 98.5 | 2400(9.12) | 100(0.68) | 500 | 15 |
| 4040-ULP | 99.2 | 2400(9.12) | 150(1.02) | 1500 | 15 |
| 4040-LP | 99.5 | 2400(9.12) | 225(1.53) | 2000 | 15 |
| 8040-XLP | 98.5 | 10500(39.9) | 100(0.68) | 500 | 15 |
| 8040-ULP | 99.2 | 10500(39.9) | 150(1.02) | 1500 | 15 |
| 8040-LP | 99.5 | 10500(39.9) | 225(1.53) | 2000 | 15 |
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.
