What are the cleaning methods of the pleated filter element?

There are also certain principles when selecting chemicals in the chemical cleaning process of the pleated filter element. First, no chemical reaction can occur with other materials of the filter element and components; second, the selected drugs prevent secondary pollution. Here are a few of them: 1. Oxidant cleaning agent: Use 1%~3% H2O2, 500~1000mg/L NaClO and other aqueous solutions to clean the ultrafiltration filter element, which can remove dust and kill bacteria. H2O2 and NaClO are commonly used fungicides. 2. Acid solution cleaning: Commonly used solutions are hydrochloric acid, citric acid, oxalic acid, etc. The pH of the solution is 2~3. Use cycle cleaning or soak for 0.5h~1h and then cycle cleaning, which has a better effect on removing inorganic impurities. 3. Alkaline solution cleaning: The commonly used alkalis are mainly sodium hydroxide, potassium hydroxide and sodium carbonate. The pH value of the alkaline solution is also determined by the type of filter element material. Generally, it is around PHu003d10~12. Use water circulation operation to clean or soak for 0.5h~1h and then cycle cleaning, which can effectively remove impurities and grease. 4. Enzymatic detergents: such as 0.5%~1.5% pepsin, trypsin, etc., are useful for removing protein, polysaccharide and oil pollutants
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