不同材料对磷和铁的吸附性能研究

李晨; 徐云兰; 钟登杰; 廖新荣; 苏定江; 吕波

doi:10.16803/j.cnki.issn.1004-6216.2019.02.006

环境保护科学

不同材料对磷和铁的吸附性能研究

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李晨, 徐云兰, 钟登杰, 廖新荣, 苏定江, 吕波. 不同材料对磷和铁的吸附性能研究[J]. 环境保护科学, 2019, (2): 34-40. doi: 10.16803/j.cnki.issn.1004-6216.2019.02.006

引用本文:

李晨, 徐云兰, 钟登杰, 廖新荣, 苏定江, 吕波. 不同材料对磷和铁的吸附性能研究[J]. 环境保护科学, 2019, (2): 34-40. doi: 10.16803/j.cnki.issn.1004-6216.2019.02.006

LI Chen, XU Yunlan, ZHONG Dengjie, LIAO Xinrong, SU Dingjiang, LV Bo. Studies on Adsorption Properties of Different Materials to Phosphorus and Iron[J]. Environmental Protection Science, 2019, (2): 34-40. doi: 10.16803/j.cnki.issn.1004-6216.2019.02.006

Citation:

LI Chen, XU Yunlan, ZHONG Dengjie, LIAO Xinrong, SU Dingjiang, LV Bo. Studies on Adsorption Properties of Different Materials to Phosphorus and Iron[J]. Environmental Protection Science, 2019, (2): 34-40. doi: 10.16803/j.cnki.issn.1004-6216.2019.02.006

不同材料对磷和铁的吸附性能研究

1. 重庆理工大学化学化工学院, 重庆 400054;
2. 重庆市市政设计研究院, 重庆 400020

作者简介: 李晨(1994-),男,硕士研究生。研究方向:水污染控制。E-mail:lichenchen@2016.cqut.edu.cn

基金项目:
重庆悦来投资集团有限公司提供资金支持

海绵城市建设雨水资源化利用(2016Q151)

海绵城市建设雨水污染削减率研究(2016Q150)资助
中图分类号: X52

Studies on Adsorption Properties of Different Materials to Phosphorus and Iron

1. School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China;
2. Chongqing Municiplal Research Institute of Design, Chongqing 400020, China
Fund Project:

摘要: 文章以P、Fe为处理对象,考察了活性炭、沸石、陶粒和石英砂4种材料的吸附特性。结果表明:当pH为7.0时,P的饱和吸附量依次为活性炭(0.14 mg/g)>沸石(0.09 mg/g)>陶粒(0.08 mg/g)>石英砂(0.06 mg/g),Fe的饱和吸附量依次为活性炭(0.79 mg/g)>陶粒(0.76 mg/g)>沸石(0.51 mg/g)>石英砂(0.26 mg/g);颗粒内扩散模型表明各材料对P、Fe的吸附分为表面扩散和内扩散2个阶段,且内扩散为速率控制步骤,吸附饱和时间为240 min;(3) P和Fe的有利吸附条件分别为酸性和碱性,结合实际水体的pH和实验结果,pH为7.0最为合适;随材料投加量增加,P和Fe的单位吸附量减少,但去除率增大;吸附材料的最佳投加量为100 g/L。
- 磷 /
- 铁 /
- 吸附特性 /
- 投加量
Abstract: The adsorption properties of four kinds of materials which include activated carbon, zeolite, ceramsite and quartz sand were observed with iron and phosphorus as targeted pollutants. The results indicates that the comparision of saturated adsorption capacity for P was active carbon (0.14 mg/g) > zeolite (0.09 mg/g) > ceramsite (0.08mg/g) > quartz sand (0.06 mg/g) and the saturated adsorption capacity For Fe was actived carbon (0.79 mg/g) > ceramsite (0.76 mg/g) > zeolite (0.51 mg/g) > quartz sand (0.26 mg/g), respectively, when pH was 7. In addition, the particle diffusion model shows that the adsorption of phosphorus and iron is divided into two stages (the surface diffusion and the internal diffusion), which the internal diffusion is the rate control step with 240 min adsorption saturation time. Acidic and alkaline conditions were favorable to the adsorption of phosphorus and iron, respectively. The best pH was 7 based on actual water sample test and experimental results. It was also find that the unit adsorption quantity of iron and phosphorus decreases with the increase of the amount of materials, but the removal efficiency still increases. The optimum dosage of adsorption materials is 100 g/L.
- Phosphorus /
- Iron /
- Adsorption Properties /
- Dosage

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李晨, 徐云兰, 钟登杰, 廖新荣, 苏定江, 吕波. 不同材料对磷和铁的吸附性能研究[J]. 环境保护科学, 2019, (2): 34-40. doi: 10.16803/j.cnki.issn.1004-6216.2019.02.006

引用本文:

李晨, 徐云兰, 钟登杰, 廖新荣, 苏定江, 吕波. 不同材料对磷和铁的吸附性能研究[J]. 环境保护科学, 2019, (2): 34-40. doi: 10.16803/j.cnki.issn.1004-6216.2019.02.006

Citation:

不同材料对磷和铁的吸附性能研究

作者简介: 李晨(1994-),男,硕士研究生。研究方向:水污染控制。E-mail:lichenchen@2016.cqut.edu.cn
1. 重庆理工大学化学化工学院, 重庆 400054;

2. 重庆市市政设计研究院, 重庆 400020

收稿日期: 2018-10-20

基金项目:

重庆悦来投资集团有限公司提供资金支持

海绵城市建设雨水资源化利用(2016Q151)

海绵城市建设雨水污染削减率研究(2016Q150)资助

关键词:

磷 /
铁 /
吸附特性 /
投加量

摘要: 文章以P、Fe为处理对象,考察了活性炭、沸石、陶粒和石英砂4种材料的吸附特性。结果表明:当pH为7.0时,P的饱和吸附量依次为活性炭(0.14 mg/g)>沸石(0.09 mg/g)>陶粒(0.08 mg/g)>石英砂(0.06 mg/g),Fe的饱和吸附量依次为活性炭(0.79 mg/g)>陶粒(0.76 mg/g)>沸石(0.51 mg/g)>石英砂(0.26 mg/g);颗粒内扩散模型表明各材料对P、Fe的吸附分为表面扩散和内扩散2个阶段,且内扩散为速率控制步骤,吸附饱和时间为240 min;(3) P和Fe的有利吸附条件分别为酸性和碱性,结合实际水体的pH和实验结果,pH为7.0最为合适;随材料投加量增加,P和Fe的单位吸附量减少,但去除率增大;吸附材料的最佳投加量为100 g/L。

English Abstract

Studies on Adsorption Properties of Different Materials to Phosphorus and Iron

1. School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China;
2. Chongqing Municiplal Research Institute of Design, Chongqing 400020, China

Received Date: 2018-10-20

Fund Project:

Keywords:

Abstract: The adsorption properties of four kinds of materials which include activated carbon, zeolite, ceramsite and quartz sand were observed with iron and phosphorus as targeted pollutants. The results indicates that the comparision of saturated adsorption capacity for P was active carbon (0.14 mg/g) > zeolite (0.09 mg/g) > ceramsite (0.08mg/g) > quartz sand (0.06 mg/g) and the saturated adsorption capacity For Fe was actived carbon (0.79 mg/g) > ceramsite (0.76 mg/g) > zeolite (0.51 mg/g) > quartz sand (0.26 mg/g), respectively, when pH was 7. In addition, the particle diffusion model shows that the adsorption of phosphorus and iron is divided into two stages (the surface diffusion and the internal diffusion), which the internal diffusion is the rate control step with 240 min adsorption saturation time. Acidic and alkaline conditions were favorable to the adsorption of phosphorus and iron, respectively. The best pH was 7 based on actual water sample test and experimental results. It was also find that the unit adsorption quantity of iron and phosphorus decreases with the increase of the amount of materials, but the removal efficiency still increases. The optimum dosage of adsorption materials is 100 g/L.