| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of supercritical water oxidative decomposition of organic sludge capable of suppressing ammonia, nitric acid, nitrous acid and total nitrogen in treated water. SOLUTION: In a method for concentrating organic sludge obtained by biologically treating organic wastewater to separate the same into concentrated sludge and separated water to oxidize and decompose the concentrated sludge in the presence of supercritical water under a condition not lower than the critical temperature of water and not less than the critical pressure thereof, separated water is added to a supercritical water oxidizing reaction system.</p> |
