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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Residential 2012-150GPD RO Membrane for RO Water Treatment Membrane Element
Prolonging the service life of film
1 Damage to membrane performance caused by untimely cleaning and incorrect cleaning method
In addition to the normal attenuation of equipment performance, the attenuation of equipment performance caused by pollution is more serious during the use of equipment. Common pollution mainly includes chemical scale, organic matter and colloid pollution, microbial pollution, etc. Different pollution shows different symptoms. The symptoms of membrane pollution proposed by different membrane companies are also different.
In the project, we found that the duration of pollution is different, and the symptoms are also different. For example, the membrane is polluted by calcium carbonate scale. When the pollution time is one week, it mainly shows that the desalination rate drops rapidly, the pressure difference increases slowly, and the water yield changes little. Washing with citric acid can completely restore the performance. The pollution time is one year (a water purifier), the salt flux increases from the initial 2mg/L to 37mg/L (raw water is 140mg/L~160mg/L), and the water yield decreases from 230L/h to 50L/h. After cleaning with citric acid, the salt flux decreases to 7mg/L, and the water yield increases to 210L/h.
Moreover, pollution is often not single, and its symptoms are also different, making it more difficult to identify pollution.
Performance
| Model | 2012-150 |
| Operation Pressure (psi) | 70 |
| Highest Operation Pressure (psi) | 150 |
| Application | For Pure water producing |
| Test Solution Concentration NaCl (ppm) | 250±50ppm |
| Recovery Rate % | 15% |
| Stable Rejection Rate % | 97 |
| Flow Rate (GPD) | 150 |
| Max. Pressure Difference (psi) | 15 |
| Max. Feed Water SDI | 5 |
| Acceptance capacity of free Chlorine | ≤0.1 |
| PH Range of feed water as continious operation | 2-11 |
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.
Main Features:
High rejection quality sheet;
Long service life for reducing the cost;
High stabilized rejection with realized nominal flux;
Sanitary qualified elements;
Stringent in-house inspection & testing control.
Reverse osmosis membrane is widely used in electric power, petrochemical industry, steel, electronics, medicine, food and beverage, municipal administration and environmental protection. It plays an important role in desalination of seawater and brackish water, preparation of boiler feed water, industrial pure water and electronic grade ultrapure water, production of drinking pure water, wastewater treatment and special separation.
FAQ:
