Research on microorganism flocculating coal slurry and infrared spectrum analysis

Phanerochaete chrysosporium were used to investigate flocculating effects of coal slurry with orthogonal experiments.The study results indicate that Phanerochaete chrysosporium have a good effect in flocculating coal slurry,the optimum combination of Phanerochaete chrysosporium culture time is 2 days,coagulant is 2 mL,and bacilli volume is 2 mL,the kind flocculent is broken liquid,the pH value is 6.The result of FTIR shows that the biological extract of Phanerochaete chrysosporium contains a lot of acidic polysaccharides that has the effect of flocculation.Microbial flocculent molecule and coal slurry particle could flocculate by "absorption bridge",finally deposited.