PURIFICATION AND FILTRATION OF THIN STILLAGE
Thin stillage is a liquid fraction that is formed after centrifugation of whole bard. For further processing and improving its quality, it is thickened to obtain the so-called concentrate. Thickening takes place on vacuum evaporation plants, the main drawback of which is the technical complexity and metal consumption of the process and high operating costs.
The Novasvit company offers a complex membrane technology that concentrates the thin stillage more than 10 times from the initial level
Functional capabilities and advantages:
- Reduction of electricity costs. The membrane stage of concentration is five times more economical than the similar process on vacuum-evaporation units.
- Increasing the yield of ethanol fermentation - due to better filtration of thin stillage, a high-quality permeate is obtained, which is then used as feed water - maximally purified from unfermented solids and other unnecessary compounds
- Reduction of water consumption - up to 60%, thanks to the return of purified permeate to the grain suspension stage.
- An increase in both the quantitative and qualitative output of compound feed - due to the concentration of valuable suspended substances in thin stillage.
The Novasvit company's technology expands the potential of thin stillage processing to create other value-added products:
- Production of lactic acid and biomass
- Production of cellulosic bioethanol
- Production of dry sourdough for the bakery industry
- Obtaining feed yeast of the genus Candida with a protein content of up to 45%
- Production of substrates for fermentation and single-cell protein
- As a component of the environment for the production of acetic acid
- In the production of organic fertilizers
- As a substrate for biogas and hydrogen production
- Recovery of valuable biologically active compounds such as polyphenols, polysaccharides and volatile fatty acids