The invention discloses application of
lysinibacillus fusiformis in removing
hexavalent chromium in eutrophic
wastewater, and belongs to the technical field of microorganisms. The strain is preservedin China General
Microbiological Culture Collection Center; the preservation address is No.3,
Yard 1, West Beichen Road, Chaoyang District, Beijing, the preservation number is CGMCC No.10053, the preservation name is
Lysinibacillus fusiformis WTXJ1-4, and the preservation date is November 25, 2014. Through
single factor test and orthogonal
test optimization, the appropriate biological adsorption conditions of the strain for the
hexavalent chromium in the eutrophic
wastewater are determined as follows: the pH value is 2.0, the initial concentration of
potassium dichromate is 50 mg / L, the adsorption time is 24 hours, the dosage of wet thalli is 1.0 g / L, the adsorption temperature is 34 DEG C, and the rotating speed is 160 r / min. And when the optimized adsorption conditions are balanced, theremoval rates of the WTXJ1-4 living
bacteria on the
hexavalent chromium and total
chromium in the eutrophic
wastewater respectively reach 91.6%-94.8% and 42.2%-43.8%. According to the present invention, the
Lysinibacillus fusiformis WTXJ1-4 living
bacteria have strong adsorption-reduction property, strong tolerance and strong resistance on the hexavalent
chromium in the eutrophic wastewater, wherein the action ranges are as follows: the concentration of
potassium dichromate is 0-100 mg / L, the concentration of
potassium dichromate is 100-300 mg / L, and the concentration of
potassium dichromate is 300-500 mg / L.