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| 粉煤灰吸附—石灰沉淀处理高浓度含氟废水 | |
| 引用本文： | 李立,马云飞,丁利群,刘燕,孟昭福.粉煤灰吸附—石灰沉淀处理高浓度含氟废水[J].化工环保,2012,32(4):301-305. |
| 作者姓名： | 李立 马云飞 丁利群 刘燕 孟昭福 |
| 作者单位： | 1. 陕西延长石油集团氟硅化工有限公司,陕西西安,710075 2. 宝鸡市农业技术推广服务中心,陕西宝鸡,721000 3. 西北农林科技大学资源环境学院,陕西杨凌,712100 |
| 摘 要： | 采用粉煤灰吸附—石灰沉淀处理高浓度含氟废水.正交实验得到的最佳工艺条件为:反应温度10℃,石灰加入量3.0 g/mL,反应时间60 min,废水pH 6.88.在此最佳工艺条件下处理F质量浓度为150 mg/L的含氟废水,Fˉ去除率为97.53％.Mn2+,Fe3+,Mg2+,A13+,Zn2+单独存在时,随5种阳离子质量浓度增大,Fˉ去除率略有增加;当5种阳离子共同存在且质量浓度均大于500 mg/L时,Fˉ去除率下降.PO43-,SO42-,CO32-,NO3-单独存在时对Fˉ去除率影响不大;当4种阴离子共同存在且质量浓度均大于800 mg/L时,Fˉ去除率低于对照实验. |
| 关 键 词： | 粉煤灰 吸附 含氟废水 共存离子 废水处理 |
Treatment of High-concentration Fluorine-containing Wastewater by Fly Ash Adsorption-Lime Precipitation Process |
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| Li li , Ma Yunfei , Ding Liqun , Liu Yan , Meng Zhaofu.Treatment of High-concentration Fluorine-containing Wastewater by Fly Ash Adsorption-Lime Precipitation Process[J].Environmental Protection of Chemical Industry,2012,32(4):301-305. | |
| Authors: | Li li Ma Yunfei Ding Liqun Liu Yan Meng Zhaofu |
| Institution: | 1.Fluorine and Silicon Chemicals Co.Ltd.,Shaanxi Yanchang Petroleum Group,Xi’an Shaanxi 710075,China;2.Baoji Agricultural Technology Extension Service Center,Baoji Shaanxi 721000,China;3.College of Natural Resource and Environment,Northwest Agricultural and Forest University,Yangling Shaanxi 712100,China) |
| Abstract: | High-concentration fluoride-containing wastewater was treated by fly ash adsorption-lime precipitation process.The optimum process conditions are as follows:reaction temperature 10℃,lime dosage 3.0 g/mL,reaction time 60 min,wastewater pH 6.88.Under the optimum conditions and with 150 mg/L of influent F-mass concentration,the F-removal rate is 97.53%.When Mn2+,Fe3+,Mg2+,Al3+ or Zn2+ are existing in the wastewater respectively,the F-removal rate is increased a little with the increasing of each cation mass concentration;When the 5 cations are coexisting in the wastewater with more than 500 mg/L of each cation mass concentration,the F-removal rate is decreased.When PO43-,SO42-,CO32-or NO3-is existing in the wastewater respectively,their effects on the F-removal rate are little;When the 4 anions are coexisting in the wastewater with more than 800 mg/L of each anion mass concentration,the F-removal rate is lower than that in the controlled experiment. |
| Keywords: | fly ash adsorption fluoride-containing wastewater coexisting ion wastewater treatment |
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