▎ 摘　　要

NOVELTY - Treating black odor of wastewater comprises e.g. (i) washing and drying corn stover, cutting, soaking in hydrochloric acid solution, reacting, taking out, washing, and drying, soaking the treated straw material in a water bath with graphene oxide, washing, air-drying, soaking the graphene-modified straw material in sodium alginate solution, washing, and air-drying, (ii) immersing the prepared graphene straw material in a domesticated sludge, stirring, performing aeration treatment, adding black odorous water into the treatment tank, adjusting the pH of the black odor water to 7, adding graphene modified straw material after the film is placed, and using the heating device to maintain the temperature of the treatment tank, maintaining the DO at 1.5 to 2.5 mg/l by an aeration device, and performing the aerated treatment. USE - The method is useful for treating black odor of wastewater. ADVANTAGE - The method has strong water quality change stability; and is simple, economical and easy to control. DETAILED DESCRIPTION - Treating black odor of wastewater comprises (i) washing and drying corn stover, cutting into uniform blocks, washing with deionized water and drying, soaking the above treated straw block in a 0.5 mol/l hydrochloric acid solution, and reacting in a constant temperature water bath for at 50-60 degrees C for 1-2 hours, taking out the straw pieces, washing with distilled water until the filtrate is neutral, and drying in a blast drying oven at 30-40 degrees C, soaking the above-mentioned treated straw material in a water bath of 40-50 degrees C with a solution of 2.4 mg/ml graphene oxide, washing with deionized water three times after 48 hours, and air-drying, soaking the graphene-modified straw material without damage in 1.8% sodium alginate solution, and washing with deionized water three times after 32 hours, and air-drying to obtain graphene modified straw material, (ii) immersing the prepared graphene straw material in a domesticated sludge, stirring, performing aeration treatment until a sludge-type biofilm is formed on the surface of the carrier, adding black odorous water into the treatment tank with aeration device, adjusting the pH of the black odor water to 7, adding graphene modified straw material after the film is placed, and using the heating device to maintain the temperature of the treatment tank at 25-30 degrees C, maintaining the DO at 1.5 to 2.5 mg/l by an aeration device, performing the aerated treatment for 72 hours, the effluent COD degradation rate is 85-95%, and the ammonia nitrogen value is 10-15 mg/l.