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According to the different nature of the solvent in pharmaceutical production and medium requirements, my company engineering technology on titanium rod filter regeneration operation procedures are as follows:
1, alkali wash: use 3-5% sodium hydroxide solution analysis of pure soak 30-60 minutes, temperature 40 degrees. In ultrasonic cleaning machine best. After soaking in filter deionized water or water for injection and flushing to neutral, measuring electrical conductivity. With pure air≥0.4Mpa pressure drying.
2: with 5% nitric acid, acid pickling solution for more than 8 hours, temperature 40 degrees. In ultrasonic cleaning machine best. After soaking in filter deionized water or water for injection and flushing to neutral, measuring electrical conductivity. With pure air≥0.4Mpa pressure drying.
In 3, the above two methods can be used alone, can also cooperate with each other alternately use. If the conditions, can be combined with ultrasonic cleaning machine is best.
4, organic pollution can be combined with a surfactant cleaning, cell debris pollution system combined with enzyme cleaning effect is more ideal. ( food and beverage by high concentration of citric acid cleaning ).