Abstract: A preparation method and application of a red mud-enhanced magnetic straw biochar material includes the following steps of: naturally air-drying or artificial drying straws, and crushing the dried straws; drying red mud from Bayer process, and crushing the red mud into powder; then mixing the crushed straws and the powdery red mud by ball milling to prepare straw-red mud mixed powder; mixing water and biomass ash rich in alkali, and extracting the mixture to obtain a biomass ash extracting solution and dealkalized biomass ash solid residues; and uniformly mixing and stirring the straw-red mud mixed powder and the biomass ash extracting solution to obtain a pasty mixture, carrying out co-pyrolysis on the pasty mixture under a protective atmosphere, and washing magnetic straw biochar produced by co-pyrolysis with water until the magnetic straw biochar is neutral to obtain the red mud enhanced magnetic straw biochar material.

Abstract: A processing apparatus for treating acid mine wastewater using an activated carbon-loaded microorganism includes a purifying container, a reducing body and an oxygen consumption body. By arranging a fuel gas body, a bottom of a cover disc is in threaded connection with a top of a top pipe after red phosphorus in a bottom cylinder is ignited, air in a feeding chamber enters into the bottom cylinder through gas ports, the oxygen in the air is consumed as the red phosphorus continues to burn, such that an interior of a reaction bin is in an oxygen-free environment, for ease of the microorganism performing the biological reduction reaction on the acid mine wastewater.

Abstract: A processing apparatus for treating acid mine wastewater using an activated carbon-loaded microorganism includes a purifying container, a reducing body and an oxygen consumption body. By arranging a fuel gas body, a bottom of a cover disc is in threaded connection with a top of a top pipe after red phosphorus in a bottom cylinder is ignited, air in a feeding chamber enters into the bottom cylinder through gas ports, the oxygen in the air is consumed as the red phosphorus continues to burn, such that an interior of a reaction bin is in an oxygen-free environment, for ease of the microorganism performing the biological reduction reaction on the acid mine wastewater.