The filter core of the precision filter plays a vital role in the operation of ro.

1. Protecting the large pollutants from entering the reverse osmosis device, breaking the reverse osmosis membrane or plugging the membrane pore with fouling. In practice, the traditional way of pretreatment is sand filtration + carbon filtration. In such a system, it is difficult to protect the sand from entering the reverse osmosis, so the role of precision filter is very important.

2. Through the pressure filtration of the filter element, the scale inhibitor can be mixed with the raw water very well, which can prevent the reverse osmosis membrane from scaling.

3. Predictive detection of fouling and plugging of reverse osmosis membranes, whether it is clay, iron colloid, coagulant, or pretreated particulate matter, or biological fouling will have a predictive.

4. It is very important to select the filter element of precision filter. The filter element of precision filter usually uses aperture less than 10um. According to the actual design situation, it can be designed as 5um or lower. Besides the length, inner diameter, outer diameter, connection mode, sealing form and the compatibility with the filtered medium, the filter element also has the necessary technical parameters, such as precision, rejection rate, flow rate, contamination capacity and so on. It is these completely independent technical indexes that form the internal quality of the filter element. Only the filter elements that are satisfied with these indicators can be used well. The safest way is to do small tests.

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