甲基肼废水的超临界/过热近临界水氧化降解研究

刘悦, 刘岩, 柴涛, 田楠, 王晨

Degradation of methyl hydrazine wastewater by supercritical/superheated near critical water oxidation

Yue LIU, Yan LIU, Tao CHAI, Nan TIAN, Chen WANG

表1 甲基肼降解影响因素正交实验

Table 1 Orthogonal experiment of methyl hydrazine degradation

序号 温度/℃ 压力/MPa 时间/min 过氧系数 COD/（mg·L-1） NH3-N/（mg·L-1） 1 490 18 2 3 47.6 30.4 2 490 20 4 4 24.4 36.7 3 490 24 6 5 126.0 82.0 4 520 18 4 5 15.6 10.3 5 520 20 6 3 62.0 27.6 6 520 24 2 4 212.0 84.5 7 550 18 6 4 12.0 6.1 8 550 20 2 5 4.4 13.2 9 550 24 4 3 72.0 67.0 COD K1 198.0 75.2 264.0 181.6 K2 289.6 90.8 112.0 248.4 K3 88.4 410.0 200.0 146.0 R 67.0 111.6 50.7 34.1 NH3-N K1 149.1 46.8 128.1 125.0 K2 122.4 77.5 114.0 127.3 K3 86.3 233.5 115.7 105.5 R 20.9 62.2 4.7 7.2