摘要
研究了用减压挥发法处理氨氮废水的方法,考察了pH值、温度、时间和真空度等因素对减压挥发效率的影响。实验结果表明:在pH=9、温度为60℃、时间为60min、真空度为0.07Mpa的条件下,氨氮的去除率达到80%以上,有利于钽铌废水处理新工艺的开发。
The treatment of ammonia nitrogen waste water by decompression-volatilization was investigated in this paper. The influence of factors such as pH, temperature, time and degree of vacuum） on the results was discussed. The result showed that under the condition ofpH=9, temperature （60℃）, time （60 min） and degree of vacuum （0.07 MPa）, the removal of ammonia nitrogen could reach more than 80%, which was heplful to development of tantalum-niobium new wastewater treatment technology.
出处
《精细化工中间体》
CAS
2008年第3期65-67,共3页
Fine Chemical Intermediates
关键词
减压挥发
氨氮
钽铌废水
ammoniacal nitrogen
decompression-volatilization
tantalum-niobium wastewater
