| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water treatment apparatus for presuming an accumulative amount of N<SB POS="POST">2</SB>O in a denitrification reaction, and for obtaining a proper additive amount of copper according to the presumed accumulative of N<SB POS="POST">2</SB>O. <P>SOLUTION: A water treatment process using a biological nitrification-denitrification method includes: a N<SB POS="POST">2</SB>O concentration presuming means 12 that presumes the accumulative amount of N<SB POS="POST">2</SB>O in a bioreactor; a copper accumulation means 10 where a copper ion is saved; a copper injection pump 11 that adds the copper saved in the copper accumulation means 10 to the bioreactor; and a control means 21 that calculates a necessary amount of copper to be added to the bioreactor based on the N<SB POS="POST">2</SB>O concentration value presumed by the N<SB POS="POST">2</SB>O concentration presuming means 12, and controls the copper injection pump 11. <P>COPYRIGHT: (C)2012,JPO&INPIT |
