The invention discloses
Enterobacter ludwigii and an application of the
Enterobacter ludwigii in preparation of a microbial flocculant. The strain is classified and named as
Enterobacter ludwigii, and is preserved in the China General
Microbiological Culture Collection Center on February 21, 2025, the preservation number is CGMCC No.33608, and the preservation address is No.3,
Yard 1, Beichen West Road, Chaoyang District, Beijing. A high-yield
extracellular product is obtained after
fermentation culture conditions are optimized, the
extracellular product is used as a microbial flocculant (RCG2P), and the
flocculation activity of the
extracellular product is compared and investigated. The
flocculation efficiency of the RCG2P measured by a kaolin suspension
flocculation method is 69.00% (1 mg / mL), when the concentration of the kaolin suspension is increased, the flocculation efficiency of the RCG2P is not obviously reduced when the concentration of the RCG2P is 1 mg / mL, the RCG2P is relatively stable, and the RCG2P has the potential of serving as an efficient and stable flocculant.