Application of Stainless Steel Coated Filter Press in Processing Fermentation Broth

A certain amount of wastewater is generated in the production process of food additives. Fermentation tanks generate a certain amount of wastewater; distillation generates a certain amount of wastewater. Other wastewater, such as ground washing, generates a small amount of wastewater. The main pollutants of fermentation liquid wastewater are mainly organic matter, and it is rich in large molecular weight organic matter. Due to the characteristics of the product, the sewage has a certain viscosity and corrosiveness. Stainless steel-coated filter presses have many advantages when processing fermentation broth, especially in high-demand industries such as food, beverage, and biopharmaceuticals.

Why Treat Fermentation Broth?

Untreated fermentation broth may contain a large number of solid particles, microbial residues, and other impurities, which will affect the efficiency of subsequent processes such as distillation, crystallization, or further chemical reactions. Preliminary treatment of fermentation broth can reduce these unfavorable factors and improve production efficiency and the yield of finished products.

If the residual substances in the fermentation broth are not treated and discharged directly, they will pollute the environment, especially the organic matter and nutrients contained in it, which may cause eutrophication of water bodies. Through treatment, the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of the wastewater can be reduced to meet the discharge standards.

Certain components of the fermentation broth can be recycled through treatment. For example, raw materials or metabolic byproducts that are not fully utilized during the fermentation process can be reused as byproducts or reused in another production cycle. Treating the fermentation broth not only helps save resources but also reduces production costs.

Steps of Fermentation Liquid Treatment

Feeding: The fermentation liquid is pumped into the filter chamber of the filter press through the feed pump.
Pressure filtration: The liquid passes through the filter cloth under pressure, the solid particles are intercepted by the filter cloth, and the liquid passes through the filter cloth into the collection pipe.
Filter cake discharge: After a certain period of time, the filter cake is formed, the compression system stops working, and the filter plate is opened to remove the filter cake.
Cleaning stage: After the fermentation liquid is treated, the equipment needs to be thoroughly cleaned, especially in the food and pharmaceutical industries, where high cleanliness requirements are required.

Note: According to the characteristics of the fermentation liquid, choose the appropriate filter cloth material, such as polypropylene, polyester, etc. Although stainless steel is corrosion-resistant, the filter cloth and seals of the equipment still need to be checked and replaced regularly to ensure the filtering effect and equipment life.

Advantages of Stainless Steel Coated Filter Press

Easy to clean and maintain: The whole machine is made of stainless steel material, with mirror polishing. The surface is clean, smooth, and bright, and it is easy and quick to clean.

Strong structure: Stainless steel material ensures the stability of the equipment structure, can withstand high pressure during the fermentation liquid treatment process, and ensures continuous and stable filtration operation.

Conclusion

In short, stainless steel filter presses can provide efficient, hygienic, and durable solutions when processing fermentation broth and are suitable for industries such as food, pharmaceuticals, and chemicals that require strict hygiene standards.

Application of Stainless Steel Coated Filter Press in Processing Fermentation Broth