| 粉煤灰的改性、成型及深度除磷应用 |
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| 引用本文： | 叶爱英,徐景峰.粉煤灰的改性、成型及深度除磷应用[J].化工环保,2013,33(1):84-86. |
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| 作者姓名： | 叶爱英 徐景峰 |
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| 作者单位： | 常州工程职业技术学院;制药与生物工程技术系，江苏;常州;213164 |
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| 摘 要： | 选择合适的改性剂对粉煤灰进行改性，通过有机高分子交联方法对改性粉煤灰进行成型处理，并采用静态吸附法评价改性粉煤灰的深度除磷效果。采用1 g氢氧化铝改性粉煤灰处理100 mL磷质量浓度为10.0 mg/L的模拟废水，磷去除率可达99.70％，处理后模拟废水中磷质量浓度低于0.50 mg/L， 达到GB8978-1996《污水综合排放标准》。成型处理可提高粉煤灰的沉降速率，改善灰水分离效果。经超声再生后的成型氢氧化铝改性粉煤灰的磷去除率仍可达67.9％。
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| 关 键 词： | 粉煤灰 改性 成型 吸附 深度除磷 再生 废水处理 |
| 收稿时间： | 2013-03-14 |
Modification and Molding of Fly Ash and Its Application to Advanced Phosphorus Removal |
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| Ye Aiying
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Xu Jingfeng.Modification and Molding of Fly Ash and Its Application to Advanced Phosphorus Removal[J].Environmental Protection of Chemical Industry,2013,33(1):84-86. |
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| Authors: | Ye Aiying Xu Jingfeng |
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| Affiliation: | Department of Pharmaceutics and Biology Engineering and Technology，Changzhou Institute of Engineering Technology，Changzhou Jiangsu 213164，China |
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| Abstract: | Fly ash was modified with suitable modifier and molded by organic polymer cross-linking，and the advanced phosphorus removal effect of the modified fly ash was evaluated by static adsorption method. When 100 mL simulated wastewater with 10 mg/L of phosphorus mass concentration is treated with 1 g Al(OH)3-modified fly ash，the phosphorus removal rate can reach 99.7% and the phosphorus mass concentration of the treated wastewater can be less than 0.5 mg/L，which can meet the national discharge standard of GB8978-1996. Molding can increase the settlement of fly ash and improve ash-water separation. The phosphorus removal rate of Al(OH)3-modified molded fly ash after ultrasonic regeneration can steel reach 67.9%. |
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| Keywords: | fly ash modification molding adsorption advanced phosphorus removal regeneration wastewater treatment |
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