The invention discloses a
processing method and application method of a
bayer process red mud roadbed, and belongs to the field of
road engineering. The method comprises the following steps: fully mixing the paved
bayer process red mud roadbed with microbiological bacterial liquid containing bacillus pasteurii according to a certain proportion in a way of mechanical plowing; supplying
nutrient liquid and consolidating fluid to
red mud in a way of several rounds of grouting. According to the
processing method and application method of the
bayer process red mud roadbed disclosed by the invention, the ways of mechanical plowing and grouting are innovatively adopted, so that three of the bacillus pasteurii, the red mud and the consolidating fluid are fully mixed and contact with each other; red mud particles are filled with
calcium carbonate crystal produced by the bacillus pasteurii in pores of the red mud in a cementing manner, so that consolidation on the red mud is realized; the consolidated red mud can be used for roadbed filling
engineering, and has the characteristics of no secondary
pollution, low cost, simpleness in preparation method and high
resource utilization ratio. In addition, the method disclosed by the invention also has the advantages that harmful components such as heavy
metal in the red mud also can be consolidated, and multi-channel large-scale
resource utilization of the red mud can be realized.