吉首大学学报(自然科学版)

• 生物与化学 • 上一篇    下一篇

电解锰渣回收氨氮的工艺条件

李思思,杨朝霞,雷洋,代琴丽   

  1. (吉首大学化学化工学院,湖南 吉首 416000)
  • 出版日期:2016-07-25 发布日期:2016-07-19
  • 通讯作者: 杨朝霞(1973—),女,湖南花垣人,吉首大学化学化工学院高级实验师,主要从事矿产品开发与精加工、天然产物研究.
  • 基金资助:

    吉首大学化学化工学院校外省级实践平台2014年创新性实验项目(2014JDXM05)

Recycling of Ammonia from Electrolytic Manganese Residue

LI Sisi,YANG Zhaoxia,LEI Yang,DAI Qinli   

  1. (College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2016-07-25 Published:2016-07-19

摘要:

以生石灰为处理剂,对电解锰渣进行改性,使锰渣中的氨氮脱离并析出.分别考察生石灰用量、反应时间、搅拌频率等因素对电解锰渣中氨的析出率的影响.结果表明,用生石灰处理电解锰渣,氨氮脱离效果良好,合适的工艺参数为处理1 kg电解锰渣需生石灰100 g,反应时间2 h,搅拌频率15 Hz,电解锰渣中氨的析出率可达91%以上.

关键词: 电解锰渣, 氨氮, 脱氨, 工艺条件

Abstract:

Quicklime was used as a treatment agent to modify electrolytic manganese residue and separate ammonia.The effect of dosage of quicklime,reaction time,stirring frequency on the separation rate of ammonia from electrolytic manganese residue are investigated.The results show that the treatment of electrolytic manganese residue by quicklime has good ammonia-nitrogen separation effect,and with the optimum technological parameters for the treatment of electrolytic manganese residue—100 g quicklime for 1 kg electrolytic manganese residue (per kg),2 h of reaction time,stirring frequency of 15  Hz,the separation rate of ammonia from nitrogen can reach 91%.

Key words: electrolytic manganese residue;ammonia nitrogen;deamination;technological , conditions

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