SUEZ DK8040F50 nanofiltration membrane is an advanced membrane separation technology product, developed by SUEZ Corporation. These nanofiltration membranes have a wide range of applications in water treatment, especially in industrial wastewater reuse, organic matter and salt removal, to meet discharge regulations or industrial water needs such as cooling water. Below, the blue film water treatment will introduce you to how to clean.
How to clean the membrane is better?
First, the cleaning method.
1.Countercurrent cleaning: It is the most commonly used method for cleaning SUEZ DK8040F50 nanofiltration membranes. During counter-current cleaning, the cleaning solution is injected downstream from the membrane and discharged from the upstream. This cleaning method can effectively remove contaminants from the membrane surface and reduce the degree of membrane contamination. The procedure is as follows:
1) Inject the cleaning solution downstream of the nanofiltration membrane to ensure that the solution fills the entire membrane module.
2) Set the cleaning time, usually 30 minutes to 1 hour.
3) During the cleaning process, at regular intervals, the cleaning solution is discharged from the upstream and then a new cleaning solution is injected again, repeating this operation several times.
4) After cleaning, return the membrane module to its normal working state.
2.Downstream cleaning: is another commonly used cleaning method. In contrast to counter-current cleaning, in downstream cleaning, the cleaning solution is injected upstream from the membrane and discharged from the downstream. This cleaning method is suitable for some contaminants that are difficult to remove by counter-current cleaning. The procedure is as follows:
1) Inject the cleaning solution upstream of the nanofiltration membrane to ensure that the solution fills the entire membrane module.
2) Set the cleaning time, usually 30 minutes to 1 hour.
3) During the cleaning process, at regular intervals, the cleaning solution is discharged from the downstream and then a new cleaning solution is injected again, repeating this operation several times.
4) After cleaning, return the membrane module to its normal working state.
3.Chemical cleaning: Chemical cleaning methods can be used for some contaminants that are difficult to remove by physical cleaning methods. Chemical cleaning usually uses some special cleaning agents, such as acids, alkalis, oxidants, etc., which can effectively remove contaminants from the membrane surface.
The procedure is as follows:
1) Inject the cleaning agent downstream of the SUEZ DK8040F50 nanofiltration membrane to ensure that the cleaning agent fills the entire membrane module.
2) Set the cleaning time, usually 30 minutes to 1 hour.
3) During the cleaning process, every once in a while, the cleaning agent is discharged from the upstream and then a new cleaning agent is injected again, repeating this operation several times.
4) After cleaning, return the membrane module to its normal working state.
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