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程芳琴, 高瑞, 宋慧平. 改性钢渣处理低浓度氨氮废水[J]. 环境工程学报, 2012, 6(11): 4027-4033.
引用本文: 程芳琴, 高瑞, 宋慧平. 改性钢渣处理低浓度氨氮废水[J]. 环境工程学报, 2012, 6(11): 4027-4033.
shu
Cheng Fangqin, Gao Rui, Song Huiping. Treatment of low concentration ammonia nitrogen wastewater with modified steel slag[J]. Chinese Journal of Environmental Engineering, 2012, 6(11): 4027-4033.
Citation: Cheng Fangqin, Gao Rui, Song Huiping. Treatment of low concentration ammonia nitrogen wastewater with modified steel slag[J]. Chinese Journal of Environmental Engineering, 2012, 6(11): 4027-4033.
shu

改性钢渣处理低浓度氨氮废水

  • 1.

    山西大学资源与环境工程研究所 国家环境保护煤炭废弃物资源化高效利用技术重点实验室,太原 030006

  • 基金项目:

    国家"863"高技术研究发展计划项目(2011AA06A103)

    国家国际科技合作项目(2011DFA90830)

    国家自然科学基金资助项目(20906053)

  • 中图分类号: X705

Treatment of low concentration ammonia nitrogen wastewater with modified steel slag

  • 1.

    State Environment Protection Key Laboratory of Efficient Utilization of Coal Waste Resources, Institute of Resources and Environment Engineering of Shanxi University, Taiyuan 030006, China

  • Fund Project:

  • 摘要: 采用正交实验法,以氨氮去除率为指标,设计5因素4水平正交实验;采用恒温振荡方法对高温活化改性钢渣做了吸附低浓度氨氮影响因素的研究;得出以下结论:改性钢渣吸附低浓度氨氮影响因素的重要性顺序为:氨氮初始质量浓度>钢渣粒度>改性方法>溶液pH>吸附时间,经过改性,提高了钢渣处理低浓度氨氮废水的能力,其中经过700℃高温活化改性效果最佳;高温改性钢渣对低浓度氨氮的吸附过程符合Langmuir方程,相关系数为0.9993,作用机理为表面吸附,即单层吸附,理论饱和吸附量为2.8491 mg/g。
    Abstract: With ammonia nitrogen (NH4+-N) removal efficiency as experimental index, 5 factors 4 levels orthogonal experiment was designed. The affecting factors on NH4+-N adsorbed by high temperature activation modified steel slag were studied by constant temperature oscillation method. The results indicate that the importance sequence of affecting factors on NH4+-N adsorbed by modified steel slag is: NH4+-N initial quality concentration>steel slag granularity>the modification methods>pH value>adsorption time. NH4+-N removal efficiency is improved by using the modified steel slag, and the 700℃ high temperature activation is the best modification method. In addition, research results show that the adsorption processes meet the Langmuir equation, the correlation coefficient is 0.9993, the mechanism is surface layer adsorption and the theory quantity of adsorption is 2.8491 mg/g.
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出版历程
  • 收稿日期:  2011-12-22
  • 刊出日期:  2012-11-09
程芳琴, 高瑞, 宋慧平. 改性钢渣处理低浓度氨氮废水[J]. 环境工程学报, 2012, 6(11): 4027-4033.
引用本文: 程芳琴, 高瑞, 宋慧平. 改性钢渣处理低浓度氨氮废水[J]. 环境工程学报, 2012, 6(11): 4027-4033.
shu
Cheng Fangqin, Gao Rui, Song Huiping. Treatment of low concentration ammonia nitrogen wastewater with modified steel slag[J]. Chinese Journal of Environmental Engineering, 2012, 6(11): 4027-4033.
Citation: Cheng Fangqin, Gao Rui, Song Huiping. Treatment of low concentration ammonia nitrogen wastewater with modified steel slag[J]. Chinese Journal of Environmental Engineering, 2012, 6(11): 4027-4033.
shu

改性钢渣处理低浓度氨氮废水

  • 1. 山西大学资源与环境工程研究所 国家环境保护煤炭废弃物资源化高效利用技术重点实验室,太原 030006
  • 收稿日期:  2011-12-22
基金项目:

国家"863"高技术研究发展计划项目(2011AA06A103)

国家国际科技合作项目(2011DFA90830)

国家自然科学基金资助项目(20906053)

摘要: 采用正交实验法,以氨氮去除率为指标,设计5因素4水平正交实验;采用恒温振荡方法对高温活化改性钢渣做了吸附低浓度氨氮影响因素的研究;得出以下结论:改性钢渣吸附低浓度氨氮影响因素的重要性顺序为:氨氮初始质量浓度>钢渣粒度>改性方法>溶液pH>吸附时间,经过改性,提高了钢渣处理低浓度氨氮废水的能力,其中经过700℃高温活化改性效果最佳;高温改性钢渣对低浓度氨氮的吸附过程符合Langmuir方程,相关系数为0.9993,作用机理为表面吸附,即单层吸附,理论饱和吸附量为2.8491 mg/g。

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