This paper is studying foundation for the hydrophobic microorganism biology property of Mycobacterium phlei,have discussed the microorganism flocculation role mechanism,it is tested that at the same time using Mycobacterium phlei has carried out wadding for coal to congeal.Through the organic wadding of high polymer and the inorganic electrolyte flocculating agent with tradition congeal dose carry out for have a competition to examine result show,Mycobacterium phlei for fine coal have good flocculent effect...