| 改性粉煤灰及在废水中的应用 |
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| 引用本文： | 刘吉洲,韩斌,吕庆銮,满杰,郑伟. 改性粉煤灰及在废水中的应用[J]. 化工时刊, 2013, 0(9): 25-28 |
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| 作者姓名： | 刘吉洲 韩斌 吕庆銮 满杰 郑伟 |
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| 作者单位： | [1]济宁市质量技术监督局信息所,山东济宁272000 [2]济宁市质量技术监督局稽查局,山东济宁272000 [3]鲁南煤化工研究院,山东济宁272000 |
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| 基金项目： | 国家质检总局科技计划项目（2012QK255）;山东省质监系统科技计划项目（2012KYZ31）. |
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| 摘 要： | 以季铵盐为改性剂，对粉煤灰进行改性反应。考察了反应温度、反应时间、改性剂的用量对改性粉煤灰去除含油废水COD的影响，确定了适宜的工艺条件。结果表明，当反应温度为75℃，反应时间为100min，改性剂的用量为3％时，改性粉煤灰除油效果最佳，COD去除率可达98．90％；季铵盐表面活性剂相对分子质量越大，有机改性粉煤灰的除油能力越大，并且通过TG—DTG—DTA对改性粉煤灰进行了表征。
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| 关 键 词： | 季铵盐 粉煤灰 除油率 |
Modified Fly Ash and Its Application to Waste Water |
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| Affiliation: | Liu Jizho Han Bin Lv Qingluan Man Jie Zeng Wei(1. Jining Quality Technology Supervision Information Institute ,Shandong Jining,272000 ;2. Jining bureau of quality and technical supervision, inspection and super vision department,Shandong Jining ,272000; 3. South Shandong institute of coal chemical industry, Shandong Jining 272000) |
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| Abstract: | Quaternary ammonium salt/ fly ash were prepared via compositing quaternary ammonium salt on the surface of fly ash, the preferable conditions were found by the study of the effect of composite temperature, composite time and the amount of quaternary ammonium salt on the COD removal efficiency of oily waste water. The results show that the COD removal efficiency of fly ash could reach 98.90% on the conditions of the composite temperature was 75℃, the composite time was 100min, the amount of quaternary ammonium salt was 3%. The oil removal rate in- creased with the increasing of the relative molecular weight of quatemary ammonium salt. And the nanocomposite was characterized by TG - DTG - DTA. |
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| Keywords: | quaternary ammonium salt fly ash oil removal rate |
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