Fermentation tanks are key equipment for microbial fermentation processes and are widely used in food, beverage, pharmaceutical, chemical and other industries. Proper maintenance and use can ensure the stability and quality of production. The following are the maintenance and use points of fermentation tanks:
1. Preparation before use
1. Cleaning and disinfection: - The fermentation tank should be thoroughly cleaned and disinfected before use to avoid contamination of microorganisms and product quality. - Choose appropriate cleaning and disinfecting agents according to the fermentation medium and microorganisms used. - When cleaning, make sure that all parts that come into contact with the material, such as agitators, gas inlets and outlets, temperature sensors, etc., can be cleaned in place.
2. Check equipment function: - Ensure that the temperature control system (such as thermometers, heaters, cooling systems) is working properly. - Check whether the stirring system is running smoothly to prevent the agitator from getting stuck. - Check whether the gas control system (such as ventilation pipes, gas flow controllers) is normal.
3. Check raw materials and culture medium: - Prepare the raw materials required for fermentation and ensure the sterility and appropriate pH value of the culture medium. - Check the quality and storage conditions of the raw materials to prevent contamination or corruption.
2. During the fermentation process
1. Monitor the fermentation environment: - Monitor the internal temperature, pH value, dissolved oxygen level, gas flow rate and other parameters of the fermenter to ensure that they are within the appropriate range. - For anaerobic fermentation, ensure that oxygen is controlled at a low level. - Check the stirring speed regularly to ensure that the fermented material is evenly distributed.
2. Avoid excessive gas accumulation: - A large amount of gas (such as carbon dioxide) may be produced during the fermentation process. The exhaust system needs to be checked regularly to avoid gas accumulation.
3. Regular sampling and testing: - Regularly take samples from the fermenter to test the pH of the culture medium, bacterial growth, target product concentration, etc., so as to adjust the fermentation conditions in time.
3. Cleaning and maintenance after use
1. Cleaning: - After fermentation is completed, the fermenter needs to be thoroughly cleaned, especially the internal pipes and parts that contact the materials. - Use appropriate cleaning agents, such as acidic cleaning agents or alkaline cleaning agents, to ensure thorough cleaning.
2. Drying and maintenance: - After cleaning, the fermenter needs to be thoroughly dried to prevent residual moisture from breeding bacteria or corroding equipment. - For fermentation tanks that have been out of service for a long time, regular inspections and anti-corrosion maintenance are required to avoid equipment damage caused by environmental influences.
3. Inspection and maintenance: - Regularly check the various parts of the fermentation tank, such as agitators, motors, sealing rings, valves, etc., to ensure that they are not worn or damaged. - If any problems are found in the equipment, they should be repaired or replaced in time to avoid affecting production.