吹脱法处理稀土氯铵废水试验研究

金属矿山 ›› 2007, Vol. 37 ›› Issue (09): 101-102+112.

吹脱法处理稀土氯铵废水试验研究

陈莉荣，戴宝成，武文斐，王利平

内蒙古科技大学

出版日期:2007-09-17 发布日期:2012-03-01
基金资助:
* 内蒙古自然资金资助课题：稀土废水对黄河污染机理和治理研究（编号：200208020214）。

Research on Treating Rare-Earth Ammonia Chloride Wastewater by Blow-Off Method

Chen Lirong，Dai Baocheng，Wu Wenfer，Wang Liping

Inner Mongolia University of Science and Technology

Online:2007-09-17 Published:2012-03-01

摘要/Abstract

摘要： 运用吹脱法处理稀土氯铵废水，通过试验得到了吹脱的最佳工艺参数为pH=12、吹脱温度30 ℃，吹脱时间3 h，气液比6 000。在此条件下，氨氮去除效率为97.20％，吹脱后的废水氨氮浓度从12 017.6 mg/L降到336 mg/L，进一步采用二级吹脱和反渗透组合工艺可使废水达到国家达标排放。

关键词: 稀土废水, 氯化铵, 吹脱法, 氨氮

Abstract: Blow-off method was used to treat rare-earth ammonia chloride waste water and the optimal process parameters achieved in the experiment include a pH value of 12, blow-off temperature of 30 ℃, blow-off time of 3h and gas-liquid ratio of 6000. At these conditions, an ammonia-nitrogen removal rate of 97.20% can be obtained and its concentration in the waste water can be reduced from 12017.6mg/L to 336mg/L. A further application of the combination of secondary blow-off and reverse osmosis can make the waste water reach the state standard for discharge.

Key words: Rare-earth waste water, Ammonia chloride, Blow-off method, Ammonia-nitrogen.

陈莉荣, 戴宝成, 武文斐, 王利平. 吹脱法处理稀土氯铵废水试验研究[J]. 金属矿山, 2007, 37(09): 101-102+112.

CHEN Li-Rong, DAI Bao-Cheng, WU Wen-Fei, WANG Li-Ping. Research on Treating Rare-Earth Ammonia Chloride Wastewater by Blow-Off Method[J]. Metal Mine, 2007, 37(09): 101-102+112.

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