| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an operation method for an anaerobic ammonia oxidation apparatus which can improve operation stability in the anaerobic ammonia oxidation apparatus for a long time, and enables easy transfer to steady operation in a short time at the start of operation, the load change, and the start-up of operation from deactivation. <P>SOLUTION: In the anaerobic ammonia oxidation apparatus 10, ammoniacal waste water from raw water piping 20 is sent to a distributor 12 by driving a raw water pump 22 to be distributed to a nitrite type nitrification tank 14 and an anaerobic ammonia oxidation tank 18 through first piping 24 and second piping 26. The treated water of the nitrification tank 14 is joined to the second piping 26 through third piping 28, and sent to the anaerobic ammonia oxidation tank 18. A regulating tank 16 is installed in the second piping 26 to regulate the inflow to the anaerobic ammonia oxidation tank 18. A part of the treated water of the anaerobic ammonia oxidation tank 18 is discharged by a flow divider 32 through fourth piping 34, and the remainder is returned to the anaerobic ammonia oxidation tank 18. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
