| 内蒙古膨润土处理氨氮废水的研究 |
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| 引用本文： | 吴奇,刘满平,刘丽红. 内蒙古膨润土处理氨氮废水的研究[J]. 石化技术与应用, 2011, 29(2): 172-175 |
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| 作者姓名： | 吴奇 刘满平 刘丽红 |
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| 作者单位： | 西安航空技术高等专科学校,动力工程系,陕西,西安,710077 |
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| 摘 要： | 采用内蒙古某地产膨润土处理氨氮模拟废水,在废水体积为100 mL,膨润土用量为5 g的条件下,利用静态吸附试验考察了吸附时间、溶液pH值、溶液中Ca2+,Mg2+浓度及氨氮初始浓度对氨氮去除率的影响,并采用改性液对膨润土进行了盐改性。结果表明,最佳吸附时间为60 min,溶液pH值为7.92,此时氨氮去除率最大,为63.38%;随着Ca2+,Mg2+浓度的增大,氨氮去除率降低,且Mg2+比Ca2+的影响程度大;当氨氮初始浓度为0～200 mg/L时,Langmuir等温线的相关系数达0.996 2;在改性液质量分数为4%时,盐改性膨润土的氨氮去除率最高,为90.18%。
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| 关 键 词： | 膨润土 氨氮废水 吸附 改性膨润土 氨氮去除率 等温吸附线 |
Study on treatment of ammonia nitrogen waste water by Nei Monggol bentonite |
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| Wu Qi,Liu Manping,Liu Lihong. Study on treatment of ammonia nitrogen waste water by Nei Monggol bentonite[J]. Petrochemical Technology & Application, 2011, 29(2): 172-175 |
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| Authors: | Wu Qi Liu Manping Liu Lihong |
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| Affiliation: | Wu Qi,Liu Manping,Liu Lihong(Department of Power Engineering,Xi'an Aerotechnical College,Xi'an 710077,China) |
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| Abstract: | The ammonia nitrogen simulated wastewater were treated by bentonite obtained from Nei Monggol.Under the conditions of the wastewater volume of 100 mL and bentonite of 5 g,the effect of adsorption time,solution pH value,concentration of Ca2+ and Mg2+ and initial concentration of ammonia nitrogen on the removal rate of ammonia nitrogen were investigated through a static adsorption test,and the bentonite was modified by sodium chloride solution.The results showed that the optimum adsorption time was 60 min,the... |
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| Keywords: | bentonite ammonia nitrogen waste water adsorption modified bentonite ammonia nitrogen removal rate adsorption isothermal |
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