| 含氟离子和氯离子酸性废水处理技术 |
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| 引用本文： | 公新忠,丁德馨,李广悦,胡南.含氟离子和氯离子酸性废水处理技术[J].环境工程学报,2012,6(9):3157-3160. |
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| 作者姓名： | 公新忠 丁德馨 李广悦 胡南 |
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| 作者单位： | 南华大学铀矿冶生物技术国防重点学科实验室,衡阳,421001 |
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| 摘 要： | 本实验研究了石灰乳和铝酸钠处理废水中的氟离子和氯离子的效果。通过正交实验得出:影响除氟离子效果因素的主次顺序为:pH值>氟离子浓度>反应时间;影响除氯离子效果因素的主次顺序为:氯离子浓度>铝酸钠与氯离子的质量浓度比>反应时间。通过单因素实验得出:在pH=9、反应时间为5 min的条件下,废水中氟离子含量可由370.37mg/L降低到2 mg/L以下,去除率可达99.45%;在铝酸钠与氯离子的质量浓度比为1∶10,反应时间为5 min的条件下,废水中氯离子含量可由503.4 mg/L降低到201 mg/L以下,去除率可达60%。
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| 关 键 词： | 氟离子 氯离子 石灰乳 铝酸钠 |
| 修稿时间： | 7/5/2011 12:00:00 AM |
A treatment method for fluorine ion and chlorine ion-containing wastewater |
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| Gong Xinzhong,Ding Dexin,Li Guangyue and Hu Nan.A treatment method for fluorine ion and chlorine ion-containing wastewater[J].Techniques and Equipment for Environmental Pollution Control,2012,6(9):3157-3160. |
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| Authors: | Gong Xinzhong Ding Dexin Li Guangyue and Hu Nan |
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| Institution: | Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China;Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China;Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China;Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China |
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| Abstract: | A method for treating the fluorine ion and chlorine ion-containing wastewater with sodium aluminate and lime was studied. The primary and secondary factors that affected removing fluoride ion by adding lime were pH, fluoride ion concentration and reaction time. The primary and secondary factors that affected removing chloride ion by adding sodium aluminate and slaked lime were chloride ion concentration, the ratio of sodium aluminate dosage and chloride ion concentration and reaction time. Under the best experimental conditions, the content of fluoride ion in wastewater could be reduced below 2 mg/L, the content of chloride ion in wastewater could be reduced below 201 mg/L and meet the national discharge standard. |
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| Keywords: | fluorine ion chlorine ion slaked lime sodium aluminate |
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