abstract |
(57) [Summary] [Problem] To improve strength, sedimentation and N An object of the present invention is to form nitrified granules having an excellent H 4 + -N removal rate. SOLUTION: A problem is caused by a method for forming nitrified granules, wherein sludge containing nitrifying bacteria and an aqueous solution containing inorganic ammonia are continuously brought into contact in a reaction tank under an upward aerobic condition. Was solved. |