L-Lysine,an essential amino acid feed additives for humans and animals, is widely used in the feed, food, and pharmaceutical industries. It is mainly produced through microbial fermentation, and the subsequent downstream separation and purification processes are crucial for obtaining high - quality products.
Lysine Fermentation Broth
Ultrafiltration ceramic membranes have emerged as a promising technology in the L-Lysine industry, with several advantages over traditional separation methods.
After the upstream fermentation step,ceramic membranes are used for the separation of impurities such as bacteria, proteins, and solid particles. The UF filtrate has a low suspended solid content (usually less than 0.5%) and a low turbidity (within 10 NTU).The high quality filtrate will bring big benefit for reducing fouling on continuous ion exchange column,reducing waste water discharge, increasing lysine yield and quality.
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L-Lysine production diagramCeramic membrane have excellent chemical stability, being resistant to acids, alkalis, oxidant. This allows for effective operation in the harsh chemical environments often encountered during L-Lysine production. Another significant advantage is their high thermal stability. Lysine broth of high temperature >70℃ can directly go into the ceramic membrane system with high filtration flux. Moreover, these membranes have strong regeneration capabilities. They can be easily cleaned by normal acid and caustic, reducing the overall production cost.
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Crossflow Ultrafiltration Ceramic Membrane SystemIn summary, the application of inorganic ceramic membranes in the L-Lysine industry can improve production efficiency, enhance product quality, and reduce environmental pollution, making it a technology with broad application prospects for many fermentation products.
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